CN104266746A - Sound wave sensing device - Google Patents
Sound wave sensing device Download PDFInfo
- Publication number
- CN104266746A CN104266746A CN201410521110.2A CN201410521110A CN104266746A CN 104266746 A CN104266746 A CN 104266746A CN 201410521110 A CN201410521110 A CN 201410521110A CN 104266746 A CN104266746 A CN 104266746A
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- CN
- China
- Prior art keywords
- sound wave
- lead terminal
- magnetic stripe
- piezoelectric chip
- induction installation
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a sound wave sensing device which comprises a shell. The lower end of the shell is provided with an anode lead terminal and a cathode lead terminal. The anode lead terminal and the cathode lead terminal are provided with an anode lead and a cathode lead respectively. The anode lead and the cathode lead are connected with a piezoelectric crystal plate. A tapered resonance disc is arranged above the piezoelectric crystal plate. A wire mesh cover is arranged above the tapered resonance disc. The sound wave sensing device is high in frequency, short in wave length and less in diffraction phenomenon and has greater penetrating power on liquid and solid matter.
Description
Technical field
The present invention relates to a kind of sound wave monitoring equipment, particularly relate to a kind of sound wave induction installation.
Background technology
In industrial aspect, hyperacoustic typical apply is nondestructive examination to metal and ultrasonic thickness test two kinds.In the past, many technology are hindered because detecting object organization internal, and the appearance of Supersonic changes this situation.Certainly more ultrasonic sensor is fixedly mounted on different devices, " quiet " detect signal required for people.In the ultrasonic sensor application in future, ultrasound wave will combine with infotech, new material technology, will occur more intellectuality, highly sensitive ultrasonic sensor.
At present, sound wave monitoring device is limited to the restriction of material itself, and main manifestations is that frequency is low, wavelength is long, poor to the penetration capacity of liquid, solid matter.
Summary of the invention
Technical matters to be solved by this invention is to provide that a kind of frequency is high, wavelength is short, diffraction phenomenon is little, have the sound wave induction installation compared with strong penetrating power to liquid, solid matter.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of sound wave induction installation, comprise shell, described shell lower end is provided with anode lead terminal, cathode lead terminal, described anode lead terminal, cathode lead terminal are respectively arranged with plate lead, cathode leg, described plate lead, cathode leg are connected with piezoelectric chip, be provided with taper resonating disk above described piezoelectric chip, above described taper resonating disk, be provided with tinsel guard.
Described taper resonating disk is by external sound wave interference vibration, vibrational energy is passed to piezoelectric chip, described piezoelectric chip resonates, frequency changes, cause piezoelectric chip resistance to change, realize the conversion of sound wave and electric signal, described electric signal outputs to external circuit by lead-in wire and lead terminal, be exaggerated monitoring, described tinsel guard can shield the undesired signal that noise causes.
On the basis of technique scheme, the present invention can also do following improvement.
Further, be provided with wafer mounting structure below described piezoelectric chip, piezoelectric chip is completely fixed by described mounting structure, avoids piezoelectric chip in use because shake, the accuracy of the extraneous frequency that loses induction.
Described wafer mounting structure is arranged on bracket, and described bracket forms an one-piece construction by fixing for mounting structure with sound wave induction installation, is conducive to the raising of the shock resistance of sound wave induction installation.
Described bracket is provided with adaptation, described adaptation comprises the first magnetic stripe, the second magnetic stripe, the 3rd magnetic stripe, sound wave is through the first magnetic stripe, the second magnetic stripe, the 3rd magnetic stripe, frequency is gradually reduced, last monitored in piezoelectric chip resonant frequency, described first magnetic stripe, the second magnetic stripe, subtracting of the 3rd magnetic stripe act on frequently, are conducive to the monitoring range expanding sound wave induction installation.
The invention has the beneficial effects as follows: frequency is high, wavelength is short, diffraction phenomenon is little, have comparatively strong penetrating power to liquid, solid matter.
Accompanying drawing explanation
Fig. 1 is a kind of sound wave induction installation of the present invention structural representation;
In accompanying drawing, the list of parts representated by each label is as follows: 1, shell, and 2, plate lead, 3, the first magnetic stripe, 4, the second magnetic stripe, the 5, the 3rd magnetic stripe, 6, tinsel guard, 7, piezoelectric chip, 8, taper resonating disk, 9, cathode leg, 10, bracket, 11, cathode lead terminal, 12, anode lead terminal.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of sound wave induction installation, comprise shell 1, described shell 1 lower end is provided with anode lead terminal 12, cathode lead terminal 11, described anode lead terminal 12, cathode lead terminal 11 are respectively arranged with plate lead 2, cathode leg 9, described plate lead 2, cathode leg 9 are connected with piezoelectric chip 7, are provided with taper resonating disk 8 above described piezoelectric chip 7, are provided with tinsel guard 6 above described taper resonating disk 8.
Described taper resonating disk 8 is by external sound wave interference vibration, vibrational energy is passed to piezoelectric chip 7, described piezoelectric chip 7 resonates, frequency changes, cause piezoelectric chip 7 resistance to change, realize the conversion of sound wave and electric signal, described electric signal outputs to external circuit by lead-in wire and lead terminal, be exaggerated monitoring, described tinsel guard 6 can shield the undesired signal that noise causes.
Be provided with wafer mounting structure below described piezoelectric chip 7, piezoelectric chip 7 is completely fixed by described mounting structure, avoids piezoelectric chip 7 in use because shake, the accuracy of the extraneous frequency that loses induction.
Described wafer mounting structure is arranged on bracket 10, and described bracket 10 forms an one-piece construction by fixing for mounting structure with sound wave induction installation, is conducive to the raising of the shock resistance of sound wave induction installation.
Described bracket 10 is provided with adaptation, described adaptation comprises the first magnetic stripe 3, second magnetic stripe 4, the 3rd magnetic stripe 5, sound wave is through the first magnetic stripe 3, second magnetic stripe 4, the 3rd magnetic stripe 5, frequency is gradually reduced, last monitored in piezoelectric chip 7 resonant frequency, subtracting of described first magnetic stripe 3, second magnetic stripe 4, the 3rd magnetic stripe 5 acts on frequently, is conducive to the monitoring range expanding sound wave induction installation.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the present invention relates to a kind of sound wave induction installation, it is characterized in that, comprise shell, described shell lower end is provided with anode lead terminal, cathode lead terminal, described anode lead terminal, cathode lead terminal are respectively arranged with plate lead, cathode leg, described plate lead, cathode leg are connected with piezoelectric chip, are provided with taper resonating disk above described piezoelectric chip, are provided with tinsel guard above described taper resonating disk.
2. a kind of sound wave induction installation according to claim 1, is characterized in that, be provided with wafer mounting structure below described piezoelectric chip.
3. a kind of sound wave induction installation according to claim 2, it is characterized in that, described wafer mounting structure is arranged on bracket.
4. a kind of sound wave induction installation according to claim 3, it is characterized in that, described bracket is provided with adaptation, described adaptation comprises the first magnetic stripe, the second magnetic stripe, the 3rd magnetic stripe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521110.2A CN104266746A (en) | 2014-09-30 | 2014-09-30 | Sound wave sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521110.2A CN104266746A (en) | 2014-09-30 | 2014-09-30 | Sound wave sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104266746A true CN104266746A (en) | 2015-01-07 |
Family
ID=52158287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410521110.2A Pending CN104266746A (en) | 2014-09-30 | 2014-09-30 | Sound wave sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104266746A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124001A (en) * | 2016-07-26 | 2016-11-16 | 厦门精图信息技术有限公司 | Traffic section Water Depth Information shared system based on Internet of Things and method |
| CN110208385A (en) * | 2019-05-28 | 2019-09-06 | 中国海洋石油集团有限公司 | The fluid channel and thread guide devices of sonic sensor under a kind of hyperbaric environment |
-
2014
- 2014-09-30 CN CN201410521110.2A patent/CN104266746A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124001A (en) * | 2016-07-26 | 2016-11-16 | 厦门精图信息技术有限公司 | Traffic section Water Depth Information shared system based on Internet of Things and method |
| CN110208385A (en) * | 2019-05-28 | 2019-09-06 | 中国海洋石油集团有限公司 | The fluid channel and thread guide devices of sonic sensor under a kind of hyperbaric environment |
| CN110208385B (en) * | 2019-05-28 | 2021-08-03 | 中国海洋石油集团有限公司 | Fluid channel and lead device of acoustic wave sensor under high-pressure environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |