CN205679356U - Sonic method thermal cup vacuum degree detection method assay device - Google Patents
Sonic method thermal cup vacuum degree detection method assay device Download PDFInfo
- Publication number
- CN205679356U CN205679356U CN201620590940.5U CN201620590940U CN205679356U CN 205679356 U CN205679356 U CN 205679356U CN 201620590940 U CN201620590940 U CN 201620590940U CN 205679356 U CN205679356 U CN 205679356U
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- outlet
- seal case
- way cock
- trachea
- vacuum degree
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Abstract
A kind of sonic method thermal cup vacuum degree detection method assay device, by seal case, three way cock, sound pressure sensor, dual channel oscilloscope, sensor wire, single pendulum, vacuum generating device, trachea is constituted, three outlets of described three way cock are respectively A outlet, B exports, C exports, described A outlet is fixed on described seal case, described sound pressure sensor is suspended in described seal case inner chamber, sensor wire is through the A outlet of described three way cock, after B outlet, described sensor wire is connected on dual channel oscilloscope, the B outlet epoxy of described three way cock seals, the C outlet of described three way cock is connected with described trachea by an adaptor, the described trachea other end connects vacuum generating device；Described single pendulum taps described seal case inner chamber sounding.The utility model proposes a kind of simple in construction, the sonic method thermal cup vacuum degree detection method assay device that accuracy in detection is high.
Description
Technical field
This utility model belongs to automatic detection field, relates to a kind of vacuum-ness detecting device, and especially a kind of sonic method is protected
Temperature cup vacuum degree measurement method assay device.
Background technology
Thermos cup is usually the container being filled with water formed by pottery or rustless steel plus vacuum layer, and lid is arranged at top, seals tight
Real, vacuum heat-insulating layer can make to be contained in the liquid such as internal water and delay heat radiation, to reach the purpose of insulation.And thermal cup vacuum degree pair
The heat insulation effect impact of thermos cup is great.
The vacuum inspective meter used in the market can accurately not detect the vacuum of thermos cup.Therefore exploitation one is cased with
The thermal cup vacuum degree detection method of effect, has wide market application foreground.Present invention Cleaning Principle based on sonic method, it is intended to
Develop a set of sonic method vacuum-ness detecting device, and before detection device development, for assessing the effectiveness of sonic method, open specially
Send out the test battery device of design.
Summary of the invention
Can not accurately detect the wretched insufficiency of thermal cup vacuum degree for conventional vacuum cup vacuum inspective meter, this practicality is new
Type proposes the sonic method thermal cup vacuum degree detection method assay device that a kind of principle is effective, simple in construction, accuracy in detection are high.
This utility model solves its technical problem and be the technical scheme is that
A kind of sonic method thermal cup vacuum degree detection method assay device, by seal case, three way cock, sound pressure sensor,
Dual channel oscilloscope, sensor wire, single pendulum, vacuum generating device, trachea are constituted, and set acoustic hood, institute in described seal case
Stating single pendulum to be arranged in described seal case, three outlets of described three way cock are respectively A outlet, B outlet, C outlet, described
A outlet is fixed on described seal case, and described A outlet is come round with described seal case inner chamber, and described sound pressure sensor hangs
Hang in described seal case inner chamber, after sensor wire passes the A outlet of described three way cock, B outlet, described pickup wire
Cable is connected on dual channel oscilloscope, and the B outlet epoxy of described three way cock seals, the C outlet of described three way cock
Being connected with described trachea by an adaptor, the described trachea other end connects vacuum generating device；Described single pendulum taps institute
State seal case inner chamber sounding, as sound source, sound pressure sensor collection be that the signal of telecommunication is input on described dual channel oscilloscope,
Carry out sound source analysis.
Beneficial effects of the present invention is mainly manifested in: the sonic method thermal cup vacuum degree detection method test dress that the present invention proposes
Putting, principle is effectively, simple in construction, development cost are low, accuracy in detection is high, by assay device experimental result, can sum up and speak
Ripple method is for the instrument development of thermal cup vacuum degree detection.
Accompanying drawing explanation
Fig. 1 is this utility model sonic method thermal cup vacuum degree detection method assay device schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further.
With reference to Fig. 1, a kind of sonic method thermal cup vacuum degree detection method assay device, by seal case 1, three way cock 3, sound
Pressure sensor 2, dual channel oscilloscope 5, sensor wire 4, single pendulum 8, vacuum generating device, trachea 7 are constituted, described seal case
Inside setting acoustic hood, described single pendulum is arranged in described seal case, three of described three way cock outlets be respectively A outlet 3-1,
B outlet 3-2, C outlet 3-3, described A outlet is fixed on described seal case, and described A exports and described seal case inner chamber
Coming round, described sound pressure sensor is suspended in described seal case inner chamber, and sensor wire goes out through the A of described three way cock
After mouth, B outlet, described sensor wire is connected on dual channel oscilloscope, and the B outlet epoxy of described three way cock carries out close
Envelope, the C outlet of described three way cock is connected with described trachea by an adaptor 6, and the described trachea other end connects vacuum
Generating means；Described single pendulum taps described seal case inner chamber sounding, as sound source, sound pressure sensor collection is that the signal of telecommunication is defeated
Enter on described dual channel oscilloscope, carry out sound source analysis.
Sonic method for the ultimate principle of vacuum degree measurement is: sound relies on Medium Propagation.Under different vacuum, sound
The fundamental characteristics such as the spread speed of sound and acoustic pressure all can change.As long as i.e. detecting sound decay under different vacuums
Degree, sets up tie-in equation, it becomes possible to obtain vacuum values.Acoustic pressure is unit interval unit on the vertical sound waves direction of propagation
The acoustic energy passed through in area.Sound pressure sensor, is converted into the signal of telecommunication by acoustical signal.
By the lot of experiments result of study of sonic method thermal cup vacuum degree detection method assay device, following knot can be drawn
Opinion: under conditions of identical vacuum, the rate of decay of waveform is relevant with the position of sound pressure sensor；Under different vacuums, ripple
The rate of decay of shape is different.Carry out MATLAB by result of the test to analyze, can show that the vacuum of thermos cup is the letter about a, b
Number i.e. y=f (a, b).As long as we measure a, b value under different known vacuum, and as standard, contrast reality inspection
A, b value obtained during survey just can determine that the vacuum degree of detected thermos cup.
Claims (1)
1. a sonic method thermal cup vacuum degree detection method assay device, by seal case, three way cock, sound pressure sensor, double
Oscilloscope channel, sensor wire, single pendulum, vacuum generating device, trachea are constituted, it is characterised in that set in described seal case
Acoustic hood, described single pendulum is arranged in described seal case, and three outlets of described three way cock are respectively A outlet, B outlet, C
Outlet, described A outlet is fixed on described seal case, and described A outlet is come round with described seal case inner chamber, described acoustic pressure
Sensor is suspended in described seal case inner chamber, after sensor wire passes the A outlet of described three way cock, B outlet, described
Sensor wire is connected on dual channel oscilloscope, and the B outlet epoxy of described three way cock seals, described three way cock
C outlet be connected with described trachea by an adaptor, the described trachea other end connection have vacuum generating device；Described single pendulum
Tap described seal case inner chamber sounding, as sound source, sound pressure sensor collection be that the signal of telecommunication is input to the described dual pathways and shows
On ripple device, carry out sound source analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590940.5U CN205679356U (en) | 2016-06-16 | 2016-06-16 | Sonic method thermal cup vacuum degree detection method assay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590940.5U CN205679356U (en) | 2016-06-16 | 2016-06-16 | Sonic method thermal cup vacuum degree detection method assay device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205679356U true CN205679356U (en) | 2016-11-09 |
Family
ID=57433401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620590940.5U Expired - Fee Related CN205679356U (en) | 2016-06-16 | 2016-06-16 | Sonic method thermal cup vacuum degree detection method assay device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205679356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931157A (en) * | 2017-11-27 | 2018-04-20 | 张自军 | A kind of detection device and method of pottery thermal insulation cup |
-
2016
- 2016-06-16 CN CN201620590940.5U patent/CN205679356U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931157A (en) * | 2017-11-27 | 2018-04-20 | 张自军 | A kind of detection device and method of pottery thermal insulation cup |
| CN107931157B (en) * | 2017-11-27 | 2019-06-25 | 张自军 | A kind of detection device and method of pottery vacuum cup |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161109 Termination date: 20170616 |