CN102778309A - Piezoelectric pressure sensor with spherical induction head - Google Patents
Piezoelectric pressure sensor with spherical induction head Download PDFInfo
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- CN102778309A CN102778309A CN2012102811416A CN201210281141A CN102778309A CN 102778309 A CN102778309 A CN 102778309A CN 2012102811416 A CN2012102811416 A CN 2012102811416A CN 201210281141 A CN201210281141 A CN 201210281141A CN 102778309 A CN102778309 A CN 102778309A
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Abstract
The invention discloses a piezoelectric pressure sensor with a spherical induction head. The piezoelectric pressure sensor comprises a pressure bearing seat, a force transfer block, a diaphragm and the induction head, wherein the pressure bearing seat is of a hollow structure, an inwardly-concave structure is arranged at the front end of the pressure bearing seat, a piezoelectric material is arranged inside the inwardly-concave structure, the outside of the piezoelectric material is connected with the force transfer block, the force transfer block is connected with the center of the rear part of the diaphragm, and the front end of the diaphragm is connected with the induction head. The piezoelectric pressure sensor is characterized in that the head of the induction head is spherical. According to the piezoelectric pressure sensor with the spherical induction head, as the spherical induction head is connected with the diaphragm, the spherical induction head can rapidly and accurately induce signals of different incident angles and then accurately transmit the signals to the diaphragm, so that the error during measurement is greatly reduced, and the accuracy and consistency of the sensor are improved.
Description
Technical field
The present invention relates to a kind of piezoelectric pressure indicator, a kind of specifically diaphragm structure piezoelectric pressure indicator.
Background technology
At present, the piezoelectric pressure indicator that in target drone, big gun target and small arms hit telling system, uses all is the flat diaphragm piezoelectric pressure indicator; It is the most accurate that such sensor is only exported when gathering the front signal, because on-the-spot pressure signal source direction is indefinite, has the problem of different incidence angles; Such sensor is when acquired signal; Just exist signal to export inconsistent unsettled shortcoming, error is big, and stability is bad.
Summary of the invention
For overcoming the problems referred to above, the present invention provides a kind of spherical inductive head piezoelectric pressure indicator.
The object of the invention comes concrete the realization through following technical scheme:
Spherical inductive head piezoelectric pressure indicator comprises Pressure Block, force-transmitting block, diaphragm and inductive head, and Pressure Block is a hollow structure; Front end at Pressure Block is provided with concave inward structure; Be provided with piezoelectric in concave inward structure inside, said piezoelectric is outside to be connected with force-transmitting block, and said force-transmitting block is connected with the centre rear of diaphragm; The diaphragm front end is connected with said inductive head, and the head of said inductive head is spherical in shape.
The exterior periphery of said piezoelectric is provided with fixed cover, piezoelectric is fixed in the concave inward structure of Pressure Block through fixed cover, and it is inner that said force-transmitting block partly is arranged on said fixed cover, and adopt clearance fit between said force-transmitting block and the fixed cover.
The conductive plate injection moulding that said piezoelectric will have lead is sealed in wherein, and the rear end of said Pressure Block is equipped with electrode cores, and the lead on the said conductive plate is connected with said electrode cores.
Between said electrode cores and Pressure Block, be provided with insulation sleeve, said insulation sleeve is fixed on Pressure Block inside, and electrode cores is fixed on insulation sleeve inside.
Through being threaded, the front end of said diaphragm is provided with one and has externally threaded connector between said inductive head and the diaphragm, and said connector inserts the center of said inductive head.
The centre of sphere that is centered close to said inductive head of said diaphragm and force-transmitting block surface of contact is when guaranteeing that said inductive head receives various external force, to the onesize power of said force-transmitting block effect.
Spherical inductive head piezoelectric pressure indicator provided by the invention; Owing to adopted spherical inductive head to link to each other with diaphragm; Spherical inductive head can be responded to the signal of different incidence angles quickly and accurately; Again signal is passed to diaphragm exactly, the error when having reduced greatly to measure has improved accuracy and the consistance of sensor.
Novel structure of the present invention, technology are easy to realize that measuring accuracy is high, good linearity, but be the spherical inductive head piezoelectric pressure indicator of practical application in target drone, big gun target and the small arms hit telling system.
Description of drawings
According to accompanying drawing and embodiment the present invention is done further explain below.
Fig. 1 is the embodiment of the invention one a said spherical inductive head piezoelectric pressure indicator structural drawing.
Embodiment
As shown in Figure 1, the said spherical inductive head piezoelectric pressure indicator of the embodiment of the invention comprises Pressure Block 1, force-transmitting block 2, diaphragm 3 and inductive head 4; Pressure Block 1 is a hollow structure, is provided with concave inward structure at the front end of Pressure Block 1, is provided with piezoelectric 5 in concave inward structure inside; Said piezoelectric 5 outsides are connected with force-transmitting block 2; Said force-transmitting block 2 is connected with the centre rear of diaphragm 3, and diaphragm 3 front ends are connected with said inductive head 4, and the head of said inductive head 4 is spherical in shape.
The exterior periphery of said piezoelectric 5 is provided with fixed cover 7; Piezoelectric 5 is fixed in the concave inward structure of Pressure Block 1 through fixed cover 7; Said force-transmitting block 2 parts are arranged on said fixed cover 7 inside, and adopt clearance fit between said force-transmitting block 2 and the fixed cover 7.
Between said electrode cores 10 and Pressure Block 1, be provided with insulation sleeve 11, said insulation sleeve 11 is fixed on Pressure Block 1 inside, and electrode cores 10 is fixed on insulation sleeve 11 inside.
Through being threaded, the front end of said diaphragm 3 is provided with one and has externally threaded connector 6 between said inductive head 4 and the diaphragm 3, the center that said connector 6 inserts said inductive head 4.
The centre of sphere that is centered close to said inductive head 4 of said diaphragm 3 and force-transmitting block 2 surface of contact is when guaranteeing that said inductive head receives various external force, to the onesize power of said force-transmitting block effect.
Spherical inductive head piezoelectric pressure indicator provided by the invention; Owing to adopted spherical inductive head to link to each other with diaphragm; Spherical inductive head can be responded to the signal of different incidence angles quickly and accurately; Again signal is passed to diaphragm exactly, the error when having reduced greatly to measure has improved accuracy and the consistance of sensor.
Novel structure of the present invention, technology are easy to realize that measuring accuracy is high, good linearity, but be the spherical inductive head piezoelectric pressure indicator of practical application in target drone, big gun target and the small arms hit telling system.
Claims (6)
1. spherical inductive head piezoelectric pressure indicator comprises Pressure Block, force-transmitting block, diaphragm and inductive head, and Pressure Block is a hollow structure; Front end at Pressure Block is provided with concave inward structure, is provided with piezoelectric in concave inward structure inside, and said piezoelectric is outside to be connected with force-transmitting block; Said force-transmitting block is connected with the centre rear of diaphragm; The diaphragm front end is connected with said inductive head, it is characterized in that, the head of said inductive head is spherical in shape.
2. spherical according to claim 1 inductive head piezoelectric pressure indicator; It is characterized in that; The exterior periphery of said piezoelectric is provided with fixed cover; Piezoelectric is fixed in the concave inward structure of Pressure Block through fixed cover, it is inner that said force-transmitting block partly is arranged on said fixed cover, and adopt clearance fit between said force-transmitting block and the fixed cover.
3. spherical according to claim 1 inductive head piezoelectric pressure indicator; It is characterized in that; The conductive plate injection moulding that said piezoelectric will have lead is sealed in wherein, and the rear end of said Pressure Block is equipped with electrode cores, and the lead on the said conductive plate is connected with said electrode cores.
4. like the said spherical inductive head piezoelectric pressure indicator of claim 3, it is characterized in that between said electrode cores and Pressure Block, be provided with insulation sleeve, said insulation sleeve is fixed on Pressure Block inside, electrode cores is fixed on insulation sleeve inside.
5. spherical according to claim 1 inductive head piezoelectric pressure indicator is characterized in that, through being threaded, the front end of said diaphragm is provided with one and has externally threaded connector between said inductive head and the diaphragm, and said connector inserts the center of said inductive head.
6. spherical according to claim 1 inductive head piezoelectric pressure indicator is characterized in that, the centre of sphere that is centered close to said inductive head of said diaphragm and force-transmitting block surface of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281141.6A CN102778309B (en) | 2012-08-09 | 2012-08-09 | Spherical inductive head piezoelectric pressure indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281141.6A CN102778309B (en) | 2012-08-09 | 2012-08-09 | Spherical inductive head piezoelectric pressure indicator |
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| Publication Number | Publication Date |
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| CN102778309A true CN102778309A (en) | 2012-11-14 |
| CN102778309B CN102778309B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210281141.6A Active CN102778309B (en) | 2012-08-09 | 2012-08-09 | Spherical inductive head piezoelectric pressure indicator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289977A (en) * | 2014-09-24 | 2015-01-21 | 昆山腾朗电子有限公司 | Blade pressure sensor |
| CN104931162A (en) * | 2015-06-30 | 2015-09-23 | 安徽智敏电气技术有限公司 | Piezoelectric sensor |
| CN114486052A (en) * | 2022-02-18 | 2022-05-13 | 中国空气动力研究与发展中心超高速空气动力研究所 | Shell insulation type piezoelectric pressure sensor |
| CN115326541A (en) * | 2022-08-10 | 2022-11-11 | 深圳市锦锐科技股份有限公司 | Full-automatic single chip microcomputer chip testing device and operation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960018A (en) * | 1973-07-23 | 1976-06-01 | Pcb Piezotronics, Inc. | Conformal pressure transducer |
| JPH11248567A (en) * | 1998-03-02 | 1999-09-17 | Minebea Co Ltd | Earth pressure gauge |
| CN201289420Y (en) * | 2008-11-05 | 2009-08-12 | 夏志澜 | Non-water-cooling superhigh temperature piezoelectric pressure sensor |
| CN201476928U (en) * | 2009-07-24 | 2010-05-19 | 江西鑫源传感器有限责任公司 | High-precision and high-frequency piezoelectric type pressure sensor |
-
2012
- 2012-08-09 CN CN201210281141.6A patent/CN102778309B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960018A (en) * | 1973-07-23 | 1976-06-01 | Pcb Piezotronics, Inc. | Conformal pressure transducer |
| JPH11248567A (en) * | 1998-03-02 | 1999-09-17 | Minebea Co Ltd | Earth pressure gauge |
| CN201289420Y (en) * | 2008-11-05 | 2009-08-12 | 夏志澜 | Non-water-cooling superhigh temperature piezoelectric pressure sensor |
| CN201476928U (en) * | 2009-07-24 | 2010-05-19 | 江西鑫源传感器有限责任公司 | High-precision and high-frequency piezoelectric type pressure sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289977A (en) * | 2014-09-24 | 2015-01-21 | 昆山腾朗电子有限公司 | Blade pressure sensor |
| CN104931162A (en) * | 2015-06-30 | 2015-09-23 | 安徽智敏电气技术有限公司 | Piezoelectric sensor |
| CN114486052A (en) * | 2022-02-18 | 2022-05-13 | 中国空气动力研究与发展中心超高速空气动力研究所 | Shell insulation type piezoelectric pressure sensor |
| CN114486052B (en) * | 2022-02-18 | 2023-03-21 | 中国空气动力研究与发展中心超高速空气动力研究所 | Shell insulation type piezoelectric pressure sensor |
| CN115326541A (en) * | 2022-08-10 | 2022-11-11 | 深圳市锦锐科技股份有限公司 | Full-automatic single chip microcomputer chip testing device and operation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102778309B (en) | 2016-04-06 |
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Effective date of registration: 20160727 Address after: 621000 Mianyang city of Sichuan Province Branch Chong Park Southwest University of Science and Technology National University Patentee after: Mianyang Mingyu Electronics Co., Ltd. Address before: 621000 No. 62 Hongxing street, Sichuan, Mianyang Patentee before: Mianyang Mingyu Technology Co.,Ltd. |