CN202339240U - Multipoint type piezoelectric pressure sensor - Google Patents

Multipoint type piezoelectric pressure sensor Download PDF

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Publication number
CN202339240U
CN202339240U CN2011204131704U CN201120413170U CN202339240U CN 202339240 U CN202339240 U CN 202339240U CN 2011204131704 U CN2011204131704 U CN 2011204131704U CN 201120413170 U CN201120413170 U CN 201120413170U CN 202339240 U CN202339240 U CN 202339240U
Authority
CN
China
Prior art keywords
brass
sensitive
cable
pressure sensor
locating sleeve
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.)
Expired - Fee Related
Application number
CN2011204131704U
Other languages
Chinese (zh)
Inventor
黄正平
杨军
陈大勇
佐建君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING LIGONG BEIYANG BLASTING ENGINEERING TECHNOLOGY Co Ltd
Original Assignee
BEIJING LIGONG BEIYANG BLASTING ENGINEERING TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BEIJING LIGONG BEIYANG BLASTING ENGINEERING TECHNOLOGY Co Ltd filed Critical BEIJING LIGONG BEIYANG BLASTING ENGINEERING TECHNOLOGY Co Ltd
Priority to CN2011204131704U priority Critical patent/CN202339240U/en
Application granted granted Critical
Publication of CN202339240U publication Critical patent/CN202339240U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a multipoint type piezoelectric pressure sensor, comprising a sensor shell. The front part of the sensor shell is provided with a plurality of sensitive components, each sensitive component comprises a brass electrode, a sensitive element and a brass core which are arranged in a locating sleeve, the sensitive component and the brass core are respectively, sequentially and symmetrically arranged above and below the brass electrode, and the brass electrodes are connected with the sensitive elements through conducting resin; FPT elastic elements are arranged on the outer sides of the upper part and the lower part of the locating sleeve; a cable sat is arranged at the back end of the sensor shell and comprises a cable seat accessory, the front part of the cable seat accessory is connected with the sensor shell through a thread, the back end of the cable seat accessory is connected with a central joint through a thread, a central joint is connected with a red copper sleeve through a thread, and a cable is arranged in the cable seat and is respectively connected with the plurality of sensitive components at the front part of the sensor shell. The multipoint type piezoelectric pressure sensor disclosed by the utility model has the advantages that the plurality of sensitive components can be used for carrying out multipoint measurement on pressure flow fields having different distances away from an explosion source, thus the test efficiency is improved and the test cost is reduced.

Description

The multipoint mode piezo-electric pressure sensor
Technical field
The utility model relates to a kind of multipoint mode piezo-electric pressure sensor.
Background technology
At national defence and some industrial circles; Shock wave pressure to the explosive charge in aerial and the water produces is measured; Particularly when carrying out pressure survey apart from the point of quick-fried source different distance in the explosive container; Piezo-electric pressure sensor in the market only can be tested a point in the pressure flow field; When multimetering is carried out in the pressure flow field that produces during explosive charge in need be to explosive container, just need process a plurality of openings so that a plurality of piezo-electric pressure sensors are installed to explosive container, this measure has weakened the intensity of explosive container greatly and has increased the complicacy of pressure test.
The utility model content
The purpose of the utility model provides a kind of multipoint mode piezo-electric pressure sensor, overcomes the deficiency of above-mentioned aspect in the existing product.
The purpose of the utility model is to realize through following technical scheme:
A kind of multipoint mode piezo-electric pressure sensor; Comprise sensor housing; Said sensor housing front portion is provided with some sensing units, and sensing unit comprises brass electrode, sensitive element and the brass core that is arranged in the locating sleeve, and the brass electrode above and below is arranged with sensitive element and brass core respectively successively; Brass electrode is connected with sensitive element through conducting resinl; Be equipped with the epoxy resins insulation layer between sensitive element and the brass core and between brass electrode, sensitive element and brass core and the locating sleeve, the outside, locating sleeve upper and lower is provided with the FPT flexible member, is provided with the epoxy resins insulation layer between FPT flexible member and locating sleeve and the brass core; The sensor housing rear end is provided with cable block; Cable block comprises cable block accessory, center sub and red copper sleeve pipe; The cable block accessory is anterior to be connected with sensor housing through screw thread, and cable block accessory rear end is connected with center sub through screw thread, and center sub is connected with the red copper sleeve pipe through screw thread; Be provided with cable in the cable block, cable is connected respectively with the anterior some sensing units of sensor housing.
The beneficial effect of the utility model is: this multipoint mode piezo-electric pressure sensor is simple in structure; Installation, easy to use is provided with a plurality of sensing units, can be to carrying out multimetering apart from pressure flow field, different distance place, quick-fried source; And kept the technical parameter of single-point type piezo-electric pressure sensor; Improve testing efficiency, used reliably, reduced testing cost.
Description of drawings
According to accompanying drawing the utility model is done further explain below.
Fig. 1 is the structural representation of the described multipoint mode piezo-electric pressure sensor of the utility model embodiment;
Fig. 2 is the cut-open view of the sensing unit of the described multipoint mode piezo-electric pressure sensor of the utility model embodiment.
Among the figure:
1, sensor housing; 2, sensing unit; 201, locating sleeve; 202, brass electrode; 203, sensitive element; 204, brass core; 205, FPT flexible member; 3, cable block; 301, cable block accessory; 302, center sub; 303, red copper sleeve pipe; 4, cable.
Embodiment
Shown in Fig. 1-2; The described a kind of multipoint mode piezo-electric pressure sensor of the utility model embodiment; Comprise sensor housing 1; Said sensor housing 1 front portion is provided with some sensing units 2, and sensing unit 2 comprises brass electrode 202, sensitive element 203 and the brass core 204 that is arranged in the locating sleeve 201, and brass electrode 202 above and belows are arranged with sensitive element 203 and brass core 204 respectively successively; Brass electrode 202 is connected with sensitive element 203 through conducting resinl; Be equipped with the epoxy resins insulation layer between sensitive element 203 and the brass core 204 and between brass electrode 202, sensitive element 203 and brass core 204 and the locating sleeve 201, the outside, locating sleeve 201 upper and lowers is equipped with FPT flexible member 205, is provided with the epoxy resins insulation layer between FPT flexible member 205 and locating sleeve 201 and the brass core 204; Sensor housing 1 rear end is provided with cable block 3; Cable block 3 comprises cable block accessory 301, center sub 302 and red copper sleeve pipe 303; The cable block accessory 301 anterior screw threads that pass through are connected with sensor housing 1, and cable block accessory 301 rear ends are connected with center sub 302 through screw thread, and center sub 302 is connected with red copper sleeve pipe 303 through screw thread; Be provided with cable 4 in the cable block 3, cable 4 is connected respectively with sensor housing 1 anterior some sensing units 2.
This multipoint mode piezo-electric pressure sensor is simple in structure, and installation, easy to use is provided with a plurality of sensing units 2; Can carry out multimetering to distance pressure flow field, different distance place, quick-fried source, and keep the technical parameter of single-point type piezo-electric pressure sensor, can bear the effect of elevated pressures; Upper limit range >=400MPa, long service life, shock wave pressure simulating signal are 1~10 μ s; The natural frequency of vibration and has favorable linearity and temperature stability about 500kHz, improved testing efficiency; Use reliably, reduced testing cost.
The utility model is not limited to above-mentioned preferred forms; Anyone can draw other various forms of products under the enlightenment of the utility model; No matter but on its shape or structure, do any variation; Every have identical with a application or akin technical scheme, all drops within the protection domain of the utility model.

Claims (1)

1. multipoint mode piezo-electric pressure sensor; Comprise sensor housing (1); It is characterized in that: said sensor housing (1) front portion is provided with some sensing units (2); Sensing unit (2) comprises brass electrode (202), sensitive element (203) and the brass core (204) that is arranged in the locating sleeve (201); Brass electrode (202) above and below is arranged with sensitive element (203) and brass core (204) respectively successively; Brass electrode (202) is connected with sensitive element (203) through conducting resinl; Be equipped with the epoxy resins insulation layer between sensitive element (203) and the brass core (204) and between brass electrode (202), sensitive element (203) and brass core (204) and the locating sleeve (201), the outside, locating sleeve (201) upper and lower is equipped with FPT flexible member (205), is provided with the epoxy resins insulation layer between FPT flexible member (205) and locating sleeve (201) and the brass core (204); Sensor housing (1) rear end is provided with cable block (3); Cable block (3) comprises cable block accessory (301), center sub (302) and red copper sleeve pipe (303); Cable block accessory (301) is anterior to be connected with sensor housing (1) through screw thread; Cable block accessory (301) rear end is connected with center sub (302) through screw thread; Center sub (302) is connected with red copper sleeve pipe (303) through screw thread, is provided with cable (4) in the cable block (3), and cable (4) is connected respectively with the anterior some sensing units (2) of sensor housing (1).
CN2011204131704U 2011-10-26 2011-10-26 Multipoint type piezoelectric pressure sensor Expired - Fee Related CN202339240U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204131704U CN202339240U (en) 2011-10-26 2011-10-26 Multipoint type piezoelectric pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204131704U CN202339240U (en) 2011-10-26 2011-10-26 Multipoint type piezoelectric pressure sensor

Publications (1)

Publication Number Publication Date
CN202339240U true CN202339240U (en) 2012-07-18

Family

ID=46487931

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204131704U Expired - Fee Related CN202339240U (en) 2011-10-26 2011-10-26 Multipoint type piezoelectric pressure sensor

Country Status (1)

Country Link
CN (1) CN202339240U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105486348A (en) * 2015-12-29 2016-04-13 中国船舶重工集团公司第七�三研究所 Novel test member
CN105758576A (en) * 2016-03-01 2016-07-13 北京理工大学 Dual sensitive element pen type free field pressure sensor
CN105784252A (en) * 2016-03-01 2016-07-20 北京理工大学 Free field pressure sensor with round cake-like integral structure
CN112964413A (en) * 2021-02-05 2021-06-15 中国船舶科学研究中心 Rod-shaped sensor for measuring pressure of underwater explosion free field

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105486348A (en) * 2015-12-29 2016-04-13 中国船舶重工集团公司第七�三研究所 Novel test member
CN105758576A (en) * 2016-03-01 2016-07-13 北京理工大学 Dual sensitive element pen type free field pressure sensor
CN105784252A (en) * 2016-03-01 2016-07-20 北京理工大学 Free field pressure sensor with round cake-like integral structure
CN105758576B (en) * 2016-03-01 2019-03-12 北京理工大学 A kind of Lazer's sensing unit pen type free-field blast pressure "pencil" sensor
CN105784252B (en) * 2016-03-01 2019-04-09 北京理工大学 A kind of overall structure cake type free-field blast pressure "pencil" sensor
CN112964413A (en) * 2021-02-05 2021-06-15 中国船舶科学研究中心 Rod-shaped sensor for measuring pressure of underwater explosion free field

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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: 20120718

Termination date: 20161026