CN104931162A - Piezoelectric sensor - Google Patents
Piezoelectric sensor Download PDFInfo
- Publication number
- CN104931162A CN104931162A CN201510384441.0A CN201510384441A CN104931162A CN 104931162 A CN104931162 A CN 104931162A CN 201510384441 A CN201510384441 A CN 201510384441A CN 104931162 A CN104931162 A CN 104931162A
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- China
- Prior art keywords
- main body
- weight block
- charge amplifier
- piezoelectric sensor
- piezoelectric
- 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.)
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- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a piezoelectric sensor. The piezoelectric sensor includes a main body, a weight block, a piezoelectric crystal, a charge amplifier, an output head, and a threaded rod. The weight block is movably arranged on the rear end inside the main body. The piezoelectric crystal is fixedly arranged inside the main body. The piezoelectric crystal and the weight block are applied together. The charge amplifier is fixedly arranged on the front end inside the main body. The output head is fixedly arranged on the front end of the main body, and is connected to the charge amplifier through a lead. The rear end of the main body is welded to the threaded rod. The piezoelectric sensor has the advantages of being convenient to use, having a good measuring effect, etc.
Description
Technical field
The present invention relates to a kind of piezoelectric sensor, be applied to mechanical pressure fields of measurement.
Background technology
Along with the continuous progress of science and technology, piezoelectric sensor is to be widely used in the field of pressure measurement of machinery, but in tonometric process, piezoelectric sensor needs to be fixed on mechanically, the main mode adopted fixes a magnet in one end of piezoelectric sensor at present, utilizing the absorption affinity of magnet to be fixed on by piezoelectric sensor needs to measure mechanically, but magnet is easily demagnetization in use for some time, absorption affinity also just declines thereupon, especially some large-scale piezoelectric sensors, more easily appear in the process of detection from the phenomenon mechanically come off that will measure, therefore measurement effect is poor.
Summary of the invention
For solving the defect of prior art, the invention discloses a kind of easy to use, piezoelectric sensor that measurement effect is good.
The invention discloses a kind of piezoelectric sensor, comprise: main body, weight block, piezoelectric crystal, charge amplifier, delivery, threaded rod, described weight block is movably arranged on body interior rear end, described piezoelectric crystal is fixedly mounted on body interior, and together with piezoelectric crystal fits to weight block, described charge amplifier is fixedly mounted on body interior front end, described delivery is installed in body front end, and delivery is connected with charge amplifier by wire, a threaded rod is welded in the rear end of described main body.
Owing to adopting technique scheme, the present invention has following advantageous benefits:
1, easy to use;
2, measurement effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of piezoelectric sensor of the present invention.
Wherein: 1-main body; 2-weight block; 3-piezoelectric crystal; 4-charge amplifier; 5-delivery; 6-threaded rod.
Embodiment
As shown in Figure 1, the invention discloses a kind of piezoelectric sensor, comprise: main body 1, weight block 2, piezoelectric crystal 3, charge amplifier 4, delivery 5, threaded rod 6, described weight block 2 is movably arranged on main body 1 Internal back end, it is inner that described piezoelectric crystal 3 is fixedly mounted on main body 1, and together with piezoelectric crystal 3 fits to weight block 2, described charge amplifier 4 is fixedly mounted on main body 1 interior forward end, described delivery 5 is installed in main body 1 front end, and delivery 5 is connected with charge amplifier 4 by wire, a threaded rod 6 is welded in the rear end of described main body 1.
The present invention implements like this: in threaded hole mechanically measured by being rotated to by threaded rod 6, like this because threaded rod 6 and the machinery that will measure are threaded connection fixing, therefore fixed effect is relatively good, use more convenient, measurement effect is also just relatively good, the External Force Acting of such machinery on the body 1 time, due to inertia, weight block 2 can produce electric charge when extruding piezoelectric crystal 3, the electric charge produced can amplify through charge amplifier 4, then exported through delivery 5 by wire, thus realization realizes the detection to pressure according to the change of electric charge, survey crew only need connect outside display instrument by delivery 5, measurement effect is relatively good.
Last it is noted that above embodiment only in order to illustrate the present invention and and unrestricted technical scheme described in the invention; Therefore, although this instructions with reference to each above-mentioned embodiment to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent to replace; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in right of the present invention.
Claims (1)
1. a piezoelectric sensor, comprise: main body, weight block, piezoelectric crystal, charge amplifier, delivery, threaded rod, it is characterized in that: described weight block is movably arranged on body interior rear end, described piezoelectric crystal is fixedly mounted on body interior, and together with piezoelectric crystal fits to weight block, described charge amplifier is fixedly mounted on body interior front end, described delivery is installed in body front end, and delivery is connected with charge amplifier by wire, a threaded rod is welded in the rear end of described main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384441.0A CN104931162A (en) | 2015-06-30 | 2015-06-30 | Piezoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384441.0A CN104931162A (en) | 2015-06-30 | 2015-06-30 | Piezoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104931162A true CN104931162A (en) | 2015-09-23 |
Family
ID=54118436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510384441.0A Pending CN104931162A (en) | 2015-06-30 | 2015-06-30 | Piezoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104931162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124041A (en) * | 2016-07-28 | 2016-11-16 | 北京中智永科技发展有限公司 | A kind of hydrophone of band amplifying circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3591861A (en) * | 1964-06-16 | 1971-07-06 | Messrs Kistler Instr Ag | Piezoelectric measurement |
| CN2665690Y (en) * | 2003-12-12 | 2004-12-22 | 东方汽轮机厂 | Force cell sensor |
| CN102778309A (en) * | 2012-08-09 | 2012-11-14 | 绵阳铭宇科技有限公司 | Piezoelectric pressure sensor with spherical induction head |
| CN203011586U (en) * | 2012-12-21 | 2013-06-19 | 武汉中航传感技术有限责任公司 | Current output type pressure sensor |
| CN203011587U (en) * | 2012-12-23 | 2013-06-19 | 武汉中航传感技术有限责任公司 | Aviation plug output type pressure sensor |
-
2015
- 2015-06-30 CN CN201510384441.0A patent/CN104931162A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3591861A (en) * | 1964-06-16 | 1971-07-06 | Messrs Kistler Instr Ag | Piezoelectric measurement |
| CN2665690Y (en) * | 2003-12-12 | 2004-12-22 | 东方汽轮机厂 | Force cell sensor |
| CN102778309A (en) * | 2012-08-09 | 2012-11-14 | 绵阳铭宇科技有限公司 | Piezoelectric pressure sensor with spherical induction head |
| CN203011586U (en) * | 2012-12-21 | 2013-06-19 | 武汉中航传感技术有限责任公司 | Current output type pressure sensor |
| CN203011587U (en) * | 2012-12-23 | 2013-06-19 | 武汉中航传感技术有限责任公司 | Aviation plug output type pressure sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124041A (en) * | 2016-07-28 | 2016-11-16 | 北京中智永科技发展有限公司 | A kind of hydrophone of band amplifying circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150923 |
|
| RJ01 | Rejection of invention patent application after publication |