CN100437053C - Ultrasonic power measuring device - Google Patents
Ultrasonic power measuring device Download PDFInfo
- Publication number
- CN100437053C CN100437053C CNB2005100985714A CN200510098571A CN100437053C CN 100437053 C CN100437053 C CN 100437053C CN B2005100985714 A CNB2005100985714 A CN B2005100985714A CN 200510098571 A CN200510098571 A CN 200510098571A CN 100437053 C CN100437053 C CN 100437053C
- Authority
- CN
- China
- Prior art keywords
- hairspring
- rotating shaft
- ultrasonic power
- power measuring
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/10—Amplitude; Power
Abstract
This invention belongs to medical mechanism technique field and relates to one hypersonic power measurement device for medical device, which comprises shell with hypersonic energy conversion device full of liquid, wherein, the said the conversion device comprises rack, active device fixed above the rack along with hypersonic action, display device relative to the active device and the adjusting device on the display screen, wherein, the said active device concludes rotation shaft on the rack with rotation wheel and rotation balance device into the center of the rotation shaft.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of ultrasonic power measuring device that is used to measure sonicator power.
Background technology
Ultrasound wave has been widely used in medical industry now, in order to the patient is diagnosed and treat.In order can be prepared the patient to be diagnosed and to treat, the operator often need measure hyperacoustic power, to determine utilizing sonicator to carry out the time length of irradiation to the patient.
Generally be to adopt the electromagnetic type device to measure ultrasonic power in the prior art, ultrasonic power meter rad that provides such as Sweden Ao Like trade company limited etc., they are to utilize the principle of work of ultrasonic radiation pressure application to measure ultrasonic power, that is: utilize hyperacoustic nonlinear effect, when ultrasound wave runs into target body on travel path, it will act on time-independent constant force on the target body on the sonic propagation direction, by conversion, the power that target body is recorded is converted to the ultrasonic power value that ultrasonic probe sends again.Though above-mentioned electromagnetic ultrasonic power-measuring device has plurality of advantages, but the cost height, and volume is big, and when being subjected to electromagnetic interference (EMI), precision also can change, poor stability.
Summary of the invention
Technical matters to be solved by this invention is the above-mentioned deficiency at prior art, and a kind of simple and light, good stability, ultrasonic power measurement mechanism that measuring accuracy is high are provided.
The technical scheme that solution the technology of the present invention problem is adopted is that this ultrasonic power measuring device comprises housing, the ultrasonic energy conversion equipment is arranged in the housing, can be full of fluid in the housing, wherein, described ultrasonic energy conversion equipment comprises support, be supported on the head that moves with the induction ultrasound wave on the support, display device that links to each other with head and the regulating device that display device is regulated, described head includes the rotating shaft that is supported on the support, be fixed with rotor wheel and rotary balance device in the rotating shaft, rotor wheel places the center of rotating shaft, and the induction ultrasound wave acts on the rotor wheel.
The rotary balance device can be the hairspring that is arranged on the rotating shaft front end, and the free-end of described hairspring is connected with regulating device.
Preferably, the free-end of described hairspring is connected with regulating device by servicing unit, and described servicing unit is the forked type sheet metal, and the fork dish of forked type sheet metal is connected on the regulating device, and the fork arm of its other end is connected with the free-end of described hairspring.
The rotary balance device also can be the hairspring that is arranged on rotating shaft front end and rear end, i.e. first hairspring and second hairspring, and first hairspring is opposite with the hand of spiral of second hairspring, and the free-end of first hairspring is connected with regulating device.
Preferably, the free-end of described first hairspring is connected with regulating device by first servicing unit, the free-end of second hairspring is connected with support by second servicing unit, described first servicing unit is the fork-shaped sheet metal, the fork dish of forked type sheet metal is connected on the regulating device, and the fork arm of its other end is connected with the free-end of first hairspring; Described second servicing unit is a clamp, and the chuck of clamp is fixed on the support, and the kelly of its other end is connected with the free-end of second hairspring.
Described display device can be index dial and pointer, and pointer is fixed in the rotating shaft, and index dial places between pointer and the rotor wheel, and the index dial center is passed in rotating shaft.Change index dial for convenience, have on the index dial and be convenient to the notch of index dial dismounting in rotating shaft.
Described regulating device comprises nut and screw, and nut places housing the place ahead on screw, and the back segment of screw places in the housing and links to each other with rotating shaft.
Preferably, regulating device also comprises the adjusting cap, regulates cap and head of screw and fixes, and between housing and the head of screw O-ring seal is arranged.
In order to be more clearly visible the performance number that measures and to make fluid-tight in apparatus of the present invention in housing, between housing and ultrasonic energy conversion equipment, can be equipped with the transparent baffle that water-stop is connected.Wherein, the preferred de aerated water of fluid.
In order to reduce the friction between rotating shaft and the support as far as possible, improve measuring accuracy, the rotating shaft of needle point formula is adopted in rotating shaft, and there is top bearing at the two ends of rotating shaft, and described top bearing is embedded on the support.
Owing to when measuring power, will be full of fluid in the housing, so housing adopts plastic material to make, and support adopts stainless steel material to make.
Ultrasonic power pick-up unit of the present invention is to adopt the fully mechanical structure, the not whole device precision and the change of stability that can cause because of electromagnetic interference (EMI), so its good stability, precision height; Simultaneously, whole device can take more suitable material to make as required, and it is simple and light, and it is easy to use, has prolonged the serviceable life of whole device.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1
Fig. 2 is the workflow diagram of the embodiment of the invention 1
Fig. 3 is the structural representation of hairspring in the embodiment of the invention 1
Fig. 4 is the structural representation of fork-shaped sheet metal 9 in the embodiment of the invention 1
Fig. 5 is the structural representation of clamp 17 in the embodiment of the invention 1
Fig. 6 is the structural representation of index dial 12 in the embodiment of the invention 1
Fig. 7 carries out the schematic diagram of sonicator power measurement for the present invention
Among the figure: 1-housing 2-support 3-transparent baffle 4-regulates the cap 5-nut 6-O-ring seal 7-screw 8-clutch shaft bearing 9-fork-shaped sheet metal 10-first hairspring 11-pointer 12-index dial 13-rotating shaft 14-rotor wheel 15-second bearing 16-second hairspring 17-clamp 18-screw 19-ultrasonic transducer 20-(the housing top) guide-localization hole 21-(the housing side) the guide-localization hole 22-fork dish 23-fork arm 24-chuck 25-kelly 26-notch
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.
Embodiment 1:
Present embodiment is indefiniteness embodiment of the present invention.
Fig. 1 is the structural representation of present embodiment ultrasonic power measuring device.As shown in Figure 1, ultrasonic power measuring device includes housing 1, and the ultrasonic energy conversion equipment is arranged in the housing 1, is full of fluid in the housing interior 1, and the fluid in the present embodiment is a de aerated water.
The ultrasonic energy conversion equipment comprises support 2, is supported on the support 2 with head, the display device that links to each other with head of induction ultrasound wave action and the regulating device that display device is regulated.Wherein, housing 1 adopts plastic material to make, and support 2 adopts stainless steel to make.
Be sealedly connected with transparent baffle 3 between housing 1 and the ultrasonic energy conversion equipment.
Head includes rotating shaft 13, and in the present embodiment, rotating shaft 13 is the rotating shaft of needle point formula, and the two end supports of rotating shaft 13 is on support 2.Two end supports in rotating shaft 13 is embedded with top bearing respectively in support 2 places, i.e. the clutch shaft bearing 8 and second bearing 15.
Be fixed with first hairspring 10, rotor wheel 14, second hairspring 16 in the rotating shaft 13 from front to back successively, rotor wheel 14 places the center of rotating shaft 13.
Fig. 3 is the structural representation of hairspring.As shown in Figure 3, the center-side of hairspring is fixed in the rotating shaft 13.As Fig. 1, first hairspring 10 and second hairspring 16 are arranged at the front end and the rear end of rotating shaft 13 respectively.The direction of first hairspring 8 and second hairspring, 16 spirals is opposite, and the free-end of first hairspring 10 is connected with regulating device by first servicing unit, and the free-end of second hairspring 16 passes through second servicing unit and is connected with support 2.
As shown in Figure 4, in the present embodiment, first servicing unit is a fork-shaped sheet metal 9.The fork arm 23 of fork-shaped sheet metal 9 is connected with the free-end of first hairspring 10.As shown in Figure 5, second servicing unit is a clamp 17, and the kelly 25 of clamp 17 is connected with the free-end of second hairspring 16, and chuck 24 is fixed on the support 2 by screw 18.
Display device comprises index dial 12 and finger 11, and pointer 11 is fixed in the rotating shaft 13 and is located between first hairspring 10 and the rotor wheel 14, and index dial 12 places between pointer 11 and the rotor wheel 14 and is fixed on the housing 1, and the center of index dial 12 is passed in rotating shaft 13.As shown in Figure 6, in the present embodiment, change index dial for convenience, index dial 12 is selected the index dial that has notch 26 for use.
Regulating device comprises nut 5, screw 7 and adjusting cap 4, and nut 5 places housing 1 the place ahead on screw 7, and the back segment of screw 7 places in the housing 1, and screw 7 passes support 2.The fork dish 22 of fork-shaped sheet metal 9 is connected on the screw 7, and the fork arm 23 of fork-shaped sheet metal 9 is connected with the free-end of first hairspring 10, so screw 7 is connected with rotating shaft 13 by fork-shaped sheet metal 9, first hairspring 10.
The top of nut 5 is equipped with regulates cap 4, regulates cap 4 and fixedlys connected with nut 5.Also have O-ring seal 6 between housing 1 and nut 5, because in the present embodiment, housing 1 front end is a transparent baffle 3, so O-ring seal 6 places between transparent baffle 3 and the nut 5, and when guaranteeing to be full of de aerated water in the housing 1, de aerated water can not flow out in housing 1.
Regulating device is used for pointer is returned to zero.Before the power of measuring sonicator, to check earlier whether pointer 11 points to the zero-bit of index dial 12, if pointer 11 is not positioned at the zero-bit of index dial 12, then to return to zero to ultrasonic power measuring device.
During zeroing, regulate cap 4, rotation by screw 7 drives 9 rotations of fork-shaped sheet metal, simultaneously, first hairspring 10 that is connected fork-shaped sheet metal 9 also and then rotates, because the center-side of first hairspring 10 is fixed in the rotating shaft 13, therefore rotating shaft 13 is rotated with the rotation of first hairspring 10, the rotation of rotating shaft 13 drives the pointer 11 that is fixed in the rotating shaft 13 simultaneously and rotates, and adjustment pointer 11 slowly is until " zero " position of pointing to index dial 12, and zeroing finishes.
During measurement, the ultrasound wave that sonicator sends acts on the rotor wheel 14 of ultrasonic power measurement mechanism of the present invention, the edge of rotor wheel 14 produces a constant power, this tries hard to recommend 13 rotations around the shaft of moving rotor wheel 14, produce a rotating torque, this rotating torque drives rotating shaft 13 and deflects, and first hairspring 10 and second hairspring 16 produce deformation because of rotating shaft 13 deflections simultaneously, thereby produces the moment of reaction; When the moment of reaction is increased to when equating with rotating torque, the head of this device rests on the equilibrium position, pointer 11 points to index dial 12 a certain positions, owing to coil corresponding scale numerical value arranged on 12 quarter, see through transparent baffle 3 and can read this numerical value, this numerical value is the power of the sonicator that measures.
Process flow diagram when Fig. 2 measures the power of Ultrasound Instrument for using present embodiment ultrasonic power measurement mechanism.
At first, in step S21, in housing 1, fill with de aerated water as hyperacoustic conductive medium;
Then, in step S22, watch " zero " position whether pointer 11 points to index dial 12, if, then arrive step S24, if not, then arrive step S23, device for regulating rotary makes pointer 11 point to " zero " position of index dial 12.
In step S24, utilize ultrasonic radiation pressure application principle of work to measure ultrasonic power.Utilize the process of this principle measurement ultrasonic power as follows: as shown in Figure 7, the ultrasonic transducer 19 of sonicator places the guide-localization hole 20 on housing top or the guide-localization hole 21 of housing side, ultrasonic transducer 19 acts on the ultrasound wave that sends in a certain zone on the round surface of rotor wheel 14, produce a constant power (F) at its edge, this tries hard to recommend 13 rotations around the shaft of moving rotor wheel 14, produce a rotating torque M1=FRcos θ, wherein, F is a ultrasonic radiation force, R is the rotor wheel radius, θ is an incident angle, this moment M1 drives rotating shaft 13 and deflects, first hairspring 10 and second hairspring 16 produce deformation because of rotating shaft 13 deflections simultaneously, thereby produce the moment of reaction (M2); When the moment of reaction (M2) is increased to and rotating torque (M1) when equating, the head of ultrasonic power measuring device rests on the equilibrium position, and pointer 11 points to a certain numerical value of index dials 12, and this numerical value is the power of the sonicator that measures.
Claims (12)
1. ultrasonic power measuring device, comprise housing, the ultrasonic energy conversion equipment is arranged in the housing, be full of fluid in the housing, it is characterized in that described ultrasonic energy conversion equipment comprises support, is supported on head, the display device corresponding with head and the regulating device that display device is regulated of moving with the induction ultrasound wave on the support, described head includes the rotating shaft that is supported on the support, be fixed with rotor wheel and rotary balance device in the rotating shaft, rotor wheel places the center of rotating shaft, and the induction ultrasound wave acts on the rotor wheel.
2. ultrasonic power measuring device according to claim 1 is characterized in that the rotary balance device is the hairspring that is arranged on the rotating shaft front end, and the free-end of described hairspring is connected with regulating device; Or the rotary balance device is the hairspring that is arranged on rotating shaft front end and rear end, i.e. first hairspring and second hairspring, and first hairspring is opposite with the hand of spiral of second hairspring, and the free-end of first hairspring is connected with regulating device.
3. ultrasonic power measuring device according to claim 2, the free-end that it is characterized in that described hairspring is connected with regulating device by servicing unit, described servicing unit is the forked type sheet metal, the fork dish of forked type sheet metal is connected on the regulating device, and the fork arm of its other end is connected with the free-end of described hairspring; The free-end of perhaps described first hairspring is connected with regulating device by first servicing unit, the free-end of second hairspring is connected with support by second servicing unit, described first servicing unit is the fork-shaped sheet metal, the fork dish of forked type sheet metal is connected on the regulating device, the fork arm of its other end is connected with the free-end of first hairspring, described second servicing unit is a clamp, and the chuck of clamp is fixed on the support, and the kelly of its other end is connected with the free-end of second hairspring.
4. ultrasonic power measuring device according to claim 1 is characterized in that described display device is index dial and pointer, and pointer is fixed in the rotating shaft, and index dial places between pointer and the rotor wheel, and the index dial center is passed in rotating shaft.
5. ultrasonic power measuring device according to claim 4 is characterized in that having on the index dial and is convenient to the notch of index dial dismounting in rotating shaft.
6. ultrasonic power measuring device according to claim 1 is characterized in that described regulating device comprises nut and screw, and nut places housing the place ahead on screw, and the back segment of screw places in the housing and links to each other with rotating shaft.
7. ultrasonic power measuring device according to claim 6 is characterized in that regulating device also comprises the adjusting cap, regulates cap and head of screw and fixes, and between housing and the head of screw O-ring seal is arranged.
8. ultrasonic power measuring device according to claim 1 is characterized in that being equipped with transparent baffle between housing and the ultrasonic energy conversion equipment.
9. according to the described ultrasonic power measuring device of one of claim 1-8, it is characterized in that rotating shaft is the rotating shaft of needle point formula, its tip is supported on the support.
10, ultrasonic power measuring device according to claim 9 is characterized in that there is top bearing at the two ends of rotating shaft, and described top bearing is embedded on the support.
11., it is characterized in that the fluid that is full of in the housing is a de aerated water according to the described ultrasonic power measuring device of one of claim 1-8.
12. according to the described ultrasonic power measuring device of one of claim 1-8, it is characterized in that housing adopts plastic material to make, support adopts stainless steel material to make.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100985714A CN100437053C (en) | 2005-09-02 | 2005-09-02 | Ultrasonic power measuring device |
| PCT/CN2006/001712 WO2007025437A1 (en) | 2005-09-02 | 2006-07-17 | An ultrasound power measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100985714A CN100437053C (en) | 2005-09-02 | 2005-09-02 | Ultrasonic power measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1924530A CN1924530A (en) | 2007-03-07 |
| CN100437053C true CN100437053C (en) | 2008-11-26 |
Family
ID=37808456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100985714A Expired - Fee Related CN100437053C (en) | 2005-09-02 | 2005-09-02 | Ultrasonic power measuring device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100437053C (en) |
| WO (1) | WO2007025437A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5404648B2 (en) * | 2008-12-22 | 2014-02-05 | パナソニック株式会社 | Ultrasonic diagnostic equipment |
| EP2439505A1 (en) | 2010-10-04 | 2012-04-11 | Koninklijke Philips Electronics N.V. | Radiation force balance calibrator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067820U (en) * | 1990-04-04 | 1990-12-19 | 永恒精密电表厂 | Indicator for tower crane |
| JPH03282332A (en) * | 1990-03-30 | 1991-12-12 | Matsushita Electric Ind Co Ltd | Ultrasonic output measuring instrument |
| CN1057107A (en) * | 1990-05-31 | 1991-12-18 | 山西省计量测试研究所 | Ultrasonic power meter |
| CN2298522Y (en) * | 1997-03-07 | 1998-11-25 | 瑞升电机工业(昆山)有限公司 | Electricity meter |
| CN2394209Y (en) * | 1999-11-03 | 2000-08-30 | 上海交通大学 | Large range ultrasonic power tester |
| CN2553353Y (en) * | 2002-05-29 | 2003-05-28 | 重庆海扶(Hifu)技术有限公司 | Supersonic power measuring device |
| WO2004076989A1 (en) * | 2003-02-25 | 2004-09-10 | The Secretary Of State For Trade And Industry | Ultrasound power sensor |
| US6790180B2 (en) * | 2001-12-03 | 2004-09-14 | Insightec-Txsonics Ltd. | Apparatus, systems, and methods for measuring power output of an ultrasound transducer |
| CN1223830C (en) * | 2002-05-29 | 2005-10-19 | 重庆海扶(Hifu)技术有限公司 | Sound field measuring device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210424U (en) * | 1987-08-07 | 1988-06-01 | 徐怀宇 | Magnetoelectric type multi-needle measurement meter |
| JPH01131452A (en) * | 1987-08-27 | 1989-05-24 | Olympus Optical Co Ltd | Ultrasonic microscope device |
| JPH0232251A (en) * | 1988-07-21 | 1990-02-02 | Olympus Optical Co Ltd | Focusing mechanism for ultrasonic microscope device |
| CN2150546Y (en) * | 1993-03-24 | 1993-12-22 | 沈富华 | Super-pressure resistant bourdon tube pressure gauge |
| JP3234701B2 (en) * | 1993-12-24 | 2001-12-04 | 株式会社ボッシュオートモーティブシステム | Ultrasonic detector |
| CN2422649Y (en) * | 2000-04-28 | 2001-03-07 | 黄石奥统电气有限公司 | Adjustable precision regulating testing electronic electric energy meter diverter |
-
2005
- 2005-09-02 CN CNB2005100985714A patent/CN100437053C/en not_active Expired - Fee Related
-
2006
- 2006-07-17 WO PCT/CN2006/001712 patent/WO2007025437A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03282332A (en) * | 1990-03-30 | 1991-12-12 | Matsushita Electric Ind Co Ltd | Ultrasonic output measuring instrument |
| CN2067820U (en) * | 1990-04-04 | 1990-12-19 | 永恒精密电表厂 | Indicator for tower crane |
| CN1057107A (en) * | 1990-05-31 | 1991-12-18 | 山西省计量测试研究所 | Ultrasonic power meter |
| CN1025973C (en) * | 1990-05-31 | 1994-09-21 | 山西省计量测试研究所 | Ultrasonic power meter |
| CN2298522Y (en) * | 1997-03-07 | 1998-11-25 | 瑞升电机工业(昆山)有限公司 | Electricity meter |
| CN2394209Y (en) * | 1999-11-03 | 2000-08-30 | 上海交通大学 | Large range ultrasonic power tester |
| US6790180B2 (en) * | 2001-12-03 | 2004-09-14 | Insightec-Txsonics Ltd. | Apparatus, systems, and methods for measuring power output of an ultrasound transducer |
| CN2553353Y (en) * | 2002-05-29 | 2003-05-28 | 重庆海扶(Hifu)技术有限公司 | Supersonic power measuring device |
| CN1223830C (en) * | 2002-05-29 | 2005-10-19 | 重庆海扶(Hifu)技术有限公司 | Sound field measuring device |
| WO2004076989A1 (en) * | 2003-02-25 | 2004-09-10 | The Secretary Of State For Trade And Industry | Ultrasound power sensor |
Non-Patent Citations (8)
| Title |
|---|
| 一种新型的智能化超声功率计. 高爽，陈亚珠.上海交通大学学报，第34卷第11期. 2000 |
| 一种新型的智能化超声功率计. 高爽，陈亚珠.上海交通大学学报，第34卷第11期. 2000 * |
| 医用超声功率计的研究及其应用. 周龙甫，罗二平，申广浩，吴晓明.中国医学物理学杂志，第22卷第1期. 2005 |
| 医用超声功率计的研究及其应用. 周龙甫，罗二平，申广浩，吴晓明.中国医学物理学杂志，第22卷第1期. 2005 * |
| 大功率超声功率计的研制及高强度聚焦超声肿瘤治疗头功率检测. 霍彦明，齐红，宋文章，王智彪.声学学报，第30卷第2期. 2005 |
| 大功率超声功率计的研制及高强度聚焦超声肿瘤治疗头功率检测. 霍彦明，齐红，宋文章，王智彪.声学学报，第30卷第2期. 2005 * |
| 宽功率范围超声功率计的设计研究. 霍彦明等.声学技术，第23卷第1期. 2004 |
| 宽功率范围超声功率计的设计研究. 霍彦明等.声学技术，第23卷第1期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1924530A (en) | 2007-03-07 |
| WO2007025437A1 (en) | 2007-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101539542B (en) | Performance test device for water immersion focusing probe and test method thereof | |
| EP1052472B1 (en) | Constant pressure mechanism of probe | |
| EP2223096B1 (en) | Devices, methods and systems for measuring one or more characteristics of a suspension | |
| CN102538654A (en) | Cylindrical part wall thickness auto-measurement device and measurement method | |
| CN103616102B (en) | A kind of ultrasonic leakage compressional wave sensing device detected for sheet metal residual stress distribution | |
| CN201935730U (en) | Ultrasonic power measuring device | |
| CN202710522U (en) | Parameter testing device for immersion focusing detection probe | |
| EP0186014B1 (en) | Apparatus for adjustably mounting ultrasonic testing devices | |
| CN100437053C (en) | Ultrasonic power measuring device | |
| CN215448134U (en) | Drifting correction device of ultrasonic level meter | |
| CN201034722Y (en) | Measurement mechanism of ultrasonic wave transducer acoustic beam angle of widening | |
| CN208223477U (en) | A kind of Portable field survey gradient instrument | |
| CN208847292U (en) | A kind of ultrasonic level gage | |
| CN110470735A (en) | A kind of PAUT experimental provision of pipe fitting | |
| CN203177777U (en) | Cylinder radius measuring instrument | |
| CN206270205U (en) | A kind of in-line viscometer | |
| CN111141343B (en) | Portable ultrasonic automatic flow measurement method for open channel water level tracking | |
| CN102058401A (en) | Screwed-in capillary pressure measuring device | |
| CN206574363U (en) | A kind of light polarization rotation test instrument | |
| CN201037763Y (en) | Radius measuring means | |
| Bindal et al. | Acoustic power measurement of medical ultrasonic probes using a strain gauge technique | |
| CN106370270A (en) | Portable intelligent ultrasonic water depth detection system | |
| CN206847734U (en) | A kind of online liquid level gauge | |
| CN219178427U (en) | Measuring device | |
| RU2814447C1 (en) | Ultrasonic radiation power meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20120902 |