CN201166933Y - Experiment instrument for measuring acoustic velocity - Google Patents
Experiment instrument for measuring acoustic velocity Download PDFInfo
- Publication number
- CN201166933Y CN201166933Y CNU2008200205092U CN200820020509U CN201166933Y CN 201166933 Y CN201166933 Y CN 201166933Y CN U2008200205092 U CNU2008200205092 U CN U2008200205092U CN 200820020509 U CN200820020509 U CN 200820020509U CN 201166933 Y CN201166933 Y CN 201166933Y
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- testing
- fixed
- pole
- vertical
- experimental instrument
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- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to an experimental instrument for middle school physics teaching, particularly to a sound velocity measuring experimental instrument. The technical proposal is that the experimental instrument comprises a set of testing transducers, a testing bracket for supporting the testing transducers and a fluid bath. The improvement of the experimental instrument is that: the testing bracket consists of a seat fixed on two sides of the fluid bath, a vertical pole on the upper part of the seat and a transverse pole fixed on the vertical pole; two testing transducers are connected to the transverse pole through blocks which are in sliding fit with the transverse pole; sliding sleeves are fixed at two ends of the transverse pole; the sliding sleeves are respectively matched with two vertical poles in a sliding manner in vertical direction; and a locating pin and a vertical pole are arranged on the two sliding sleeves for locking. The experimental instrument has the advantages that: the testing transducers, the bracket and the fluid bath are combined and integrated as a whole body, thereby saving space; the height and the horizontal spacing of the testing transducers can be adjusted conveniently, thereby facilitating the contrast experiment operations in the air condition and in other conditions of different media, ensuring liquid medium is not easy to leak out and simplifying adjustment time; the display of the height and the horizontal scale are added, thereby improving the testing precision.
Description
Technical field:
The utility model relates to the physics teaching in secondary school experimental apparatus; Particularly a kind of sound velocity determination experimental apparatus.
Background technology:
The sound velocity determination experimental apparatus that uses in the middle school physical acoustics experiment at present, the testing jig, the liquid bath that mainly comprise one group of testing transducer, support testing transducer, testing jig and liquid bath separate design, and testing jig itself can not carry out height control, like this in experimentation, when needing to measure in the liquid velocity of sound, liquid bath is put in the testing jig, when MEASURING THE VELOCITY OF SOUND IN AIR, must in testing jig, take out liquid bath again, be placed on other place.Its shortcoming is: testing transducer and liquid bath need to take desk-top space respectively; When testing jig and liquid bath shirked, the moisture content on the testing jig dripped, and stays the water mark on the table; Each testing jig lumps together with liquid bath or when separate, wastes time and energy, and is difficult for adjustment highly and level interval.
The utility model content:
The purpose of this utility model is exactly the defective that moves, is difficult to adjust at the split that existing velocity of sound experimental apparatus exists, the entire combination structure, be easy to adjust, the convenient sound velocity determination experiment instrument that under different medium, compares experiment.
Its technical scheme comprises one group of testing transducer, supports testing jig, the liquid bath of testing transducer, its improvements are: described testing jig is made up of the vertical rod on the base that is fixed on the liquid bath both sides, base top and the cross bar that is fixed in the vertical rod, two testing transducers are connected on the cross bar by the slide block that is slidingly matched with cross bar respectively, the two ends of cross bar are fixed with sliding sleeve, sliding sleeve is slidingly matched with two vertical rod vertical direction respectively, and is respectively equipped with register pin and vertical rod locking on two sliding sleeves.
Carry out the adjustment of height and level interval for convenience intuitively, two vertical rods are provided with height gauge, and cross bar is provided with surveyor's staff.The discharging and the replacing of liquid for convenience is provided with leakage fluid dram and valve in the bottom of liquid bath simultaneously.
Advantage of the present utility model: testing transducer and bracing frame, liquid bath design for composite entity, save the space; The height and the level interval of testing transducer are easy to adjust, make things convenient for the contrast experiment's operation under air and the different medium condition, and liquid medium is difficult for water clock outside, simplifies the adjusting time; Increased height and horizontal scale and shown, testing precision is improved.
Description of drawings:
Accompanying drawing is the novel structural representation of this use.
Embodiment:
As shown in the figure, liquid bath 9 both sides of rectangular parallelepiped are fixed with base 8 by fixed block 10, upwards be fixed with vertical vertical rod 4 along base 8, be with sliding sleeve 6 in vertical rod 4, sliding sleeve 6 is provided with register pin 5 (can be screw or latch), is fixed with cross bar 1 between two sliding sleeves 6, two testing transducers 7 are fixed on the cross bar 1 by slide block 3 respectively, slide block 3 is provided with navigation button 2, and the discharging and the replacing of liquid in the liquid bath 9 for convenience is provided with leakage fluid dram and valve 11 in the bottom of liquid bath 9.Simultaneously, on vertical rod and cross bar, be respectively equipped with height gauge and surveyor's staff (not drawing among the figure) for the ease of the adjustment of height and levelness, level interval.
When measuring the airborne velocity of sound, with register pin 5 releases of sliding sleeve 6, cross bar 1 upwards promotes and notes observing the height gauge unanimity of both sides vertical rod 4, unclamps two navigation buttons 2 on the testing transducer 7, and the adjustment spacing is carried out airborne measurement.
Same operation descends cross bar 1, and two testing transducers 7 are immersed in the liquid fully, realizes the sound's velocity in liquid measurement.
Claims (2)
1, a kind of sound velocity determination experiment instrument, the testing jig, the liquid bath that comprise one group of testing transducer, support testing transducer, it is characterized in that: described testing jig is made up of the vertical rod on the base that is fixed on the liquid bath both sides, base top and the cross bar that is fixed in the vertical rod, two testing transducers are connected on the cross bar by the slide block that is slidingly matched with cross bar respectively, the two ends of cross bar are fixed with sliding sleeve, sliding sleeve is slidingly matched with two vertical rod vertical direction respectively, and is respectively equipped with register pin and vertical rod locking on two sliding sleeves.
2, sound velocity determination experiment instrument according to claim 1 is characterized in that: two vertical rods are provided with height gauge, and cross bar is provided with surveyor's staff, are provided with leakage fluid dram and valve in the bottom of liquid bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200205092U CN201166933Y (en) | 2008-03-20 | 2008-03-20 | Experiment instrument for measuring acoustic velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200205092U CN201166933Y (en) | 2008-03-20 | 2008-03-20 | Experiment instrument for measuring acoustic velocity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166933Y true CN201166933Y (en) | 2008-12-17 |
Family
ID=40192325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200205092U Expired - Fee Related CN201166933Y (en) | 2008-03-20 | 2008-03-20 | Experiment instrument for measuring acoustic velocity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166933Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400846A (en) * | 2016-11-25 | 2017-02-15 | 安徽瑞研新材料技术研究院有限公司 | Positioning device for walling crib embedding |
| CN109297580A (en) * | 2018-11-05 | 2019-02-01 | 福建师范大学 | A device and method for measuring ultrasonic velocity |
| CN112571317A (en) * | 2020-12-03 | 2021-03-30 | 杭州瑞声海洋仪器有限公司 | Universal adjustable tooling fixture for underwater acoustic transducer test |
-
2008
- 2008-03-20 CN CNU2008200205092U patent/CN201166933Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400846A (en) * | 2016-11-25 | 2017-02-15 | 安徽瑞研新材料技术研究院有限公司 | Positioning device for walling crib embedding |
| CN109297580A (en) * | 2018-11-05 | 2019-02-01 | 福建师范大学 | A device and method for measuring ultrasonic velocity |
| CN112571317A (en) * | 2020-12-03 | 2021-03-30 | 杭州瑞声海洋仪器有限公司 | Universal adjustable tooling fixture for underwater acoustic transducer test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081217 |