CN203133107U - Piezoelectric acceleration sensor integrated with temperature detection function - Google Patents
Piezoelectric acceleration sensor integrated with temperature detection function Download PDFInfo
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- CN203133107U CN203133107U CN 201320161304 CN201320161304U CN203133107U CN 203133107 U CN203133107 U CN 203133107U CN 201320161304 CN201320161304 CN 201320161304 CN 201320161304 U CN201320161304 U CN 201320161304U CN 203133107 U CN203133107 U CN 203133107U
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- temperature
- acceleration transducer
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Abstract
The utility model discloses a piezoelectric acceleration sensor integrated with a temperature detection function comprising a pedestal, a thermistor, a piezoelectric sensor assembly, a housing, and a connector. A blind hole is disposed in the pedestal. The thermistor is disposed in the blind hole in an encapsulated manner by using heat-conducting glue, and is electrically connected with a connector by a cable. The piezoelectric sensor assembly is disposed on the heat-conducting glue in the pedestal. The housing is sleeved on an outer side of the piezoelectric sensor assembly, and is fixedly connected with the pedestal, and a top part of the housing is welded with the connector. According to the utility model, the thermistor is additionally disposed in the sensor, and the environmental temperature and the accelerated speed can be measured at the same time, therefore the actual working temperature of the acceleration sensor can be timely reflected, the accuracy of the acceleration sensor output changing with the temperature together can be improved, a reliable temperature signal can be provided for the processor used for the temperature compensation of the acceleration sensor output in the later stage, and the test accuracy of the system can be improved.
Description
Technical field
The utility model relates to the acceleration transducer technical field, relates in particular to the piezoelectric acceleration transducer that a kind of integrated temperature detects.
Background technology
Acceleration transducer is the testing tool that pressure that physical phenomenons such as degree of will speed up, vibrations, impact produce converts the electric signal of being convenient to measure to.Piezoelectric acceleration transducer is to utilize the piezoelectric effect of piezoelectric element to go to detect mechanical quantity.
Piezoelectric acceleration sensor is worked under different environment temperatures, because environment temperature can exert an influence to the pyroelectric effect of the characterisitic parameter of piezoelectric in the sensor, piezoelectric and sensor construction etc., easily cause temperature drift, cause measurement result inaccurate etc.For measures ambient temperature, grasp temperature simultaneously to the influence of sensor performance parameter, often be to add a temperature sensor, the installation because the temperature sensor that adds and acceleration transducer stagger, can't detect the instantaneous working temperature of acceleration transducer at the right time, there is delay time error, is unfavorable for the follow-up temperature compensation of carrying out.
Summary of the invention
For overcoming the problems referred to above, the utility model proposes the piezoelectric acceleration transducer that a kind of integrated temperature detects, can in time reflect the actual work temperature of acceleration transducer, improve the temperature variant accuracy of acceleration transducer output quantity.
For achieving the above object, the technical scheme that the utility model proposes is: the piezoelectric acceleration transducer that a kind of integrated temperature detects comprises a base, thermistor, piezoelectric sensor assembly, shell and connector; Has a blind hole in the described base; Described thermistor, and is electrically connected with connector by cable in this blind hole by the heat-conducting glue embedding; Described piezoelectric sensor assembly places above the interior heat-conducting glue of base; Described shell is placed in piezoelectric sensor assembly outside, fixedlys connected the described connector of its welded top with described base.
Further, described piezoelectric sensor assembly comprises that one has the center shaft support, sheathed piezoelectric element and mass successively on the central shaft; Also comprise a circuit board, place on the mass; Described support, piezoelectric element, mass and circuit board cover in the radome, and circuit board is electrically connected with described connector by the cable that passes radome.
Further, described circuit board is signal amplifying and conditioning circuit.
Further, isolated by an insulating trip between described piezoelectric sensor assembly and the heat-conducting glue.
The beneficial effects of the utility model: increase thermistor at sensor internal, while measures ambient temperature and acceleration, the actual work temperature that in time reflects acceleration transducer, improve the temperature variant accuracy of acceleration transducer output quantity, the processor that the acceleration transducer output quantity is carried out temperature compensation for the later stage provides reliable temperature signal, to improve the system testing precision.
Description of drawings
Fig. 1 is sensor construction synoptic diagram of the present utility model.
Reference numeral: 1, base; 2, thermistor; 3, heat-conducting glue; 4, insulating trip; 5, support; 6, piezoelectric element; 7, mass; 8, circuit board; 9, radome; 10, shell; 11, connector.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, the piezoelectric acceleration transducer that integrated temperature of the present utility model detects comprises a base 1, thermistor 2, piezoelectric sensor assembly, shell 10 and connector 11; Have a blind hole in the base 1, thermistor 2, and is electrically connected with connector 11 by cable in this blind hole by heat-conducting glue 3 embeddings; The piezoelectric sensor assembly places above the heat-conducting glue 3 in the base 1; Shell 10 is placed in piezoelectric sensor assembly outside, fixedlys connected the above-mentioned connector 11 of its welded top with base 1.Wherein, the piezoelectric sensor assembly comprises that one has center shaft support 5, sheathed piezoelectric element 6 and mass 7 successively on the central shaft; Also comprise a circuit board 8, place on the mass 7; Support 5, piezoelectric element 6, mass 7 and circuit board 8 cover in the radome 9, and circuit board 8 is electrically connected with connector 11 by the cable that passes radome 9; This circuit board 8 is signal amplifying and conditioning circuit.In the course of work, when sensor produced acceleration, the inertial force of mass 7 forced piezoelectric element 6 to produce electric charge, and electric charge is outwards exported through connector 11 after carrying out signal amplification conditioning by circuit board 8; Environment temperature passes to thermistor 2 by heat-conducting glue 3, and its resistance changes along with variation of temperature, and converts corresponding electric signal to and outwards export by connector 11.
Among this embodiment, isolated by an insulating trip 4 between piezoelectric sensor assembly and the heat-conducting glue 3.By increasing thermistor 2 at sensor internal, and adopt heat-conducting glue 3 embeddings; Temperature sensor and piezoelectric acceleration transducer are integrated, simultaneously measures ambient temperature and acceleration, measured temperature can in time reflect the actual work temperature of acceleration transducer, to improve the temperature variant accuracy of acceleration transducer output quantity, for the processor that the acceleration transducer output quantity is carried out temperature compensation provides reliable temperature signal, finally improve the system testing precision.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in not breaking away from the spirit and scope of the present utility model that appended claims limits; the various variations that the utility model is made are protection domain of the present utility model in the form and details.
Claims (4)
1. the piezoelectric acceleration transducer that integrated temperature detects is characterized in that: comprise a base, thermistor, piezoelectric sensor assembly, shell and connector; Has a blind hole in the described base; Described thermistor, and is electrically connected with connector by cable in this blind hole by the heat-conducting glue embedding; Described piezoelectric sensor assembly places above the interior heat-conducting glue of base; Described shell is placed in piezoelectric sensor assembly outside, fixedlys connected the described connector of its welded top with described base.
2. the piezoelectric acceleration transducer that detects of integrated temperature according to claim 1, it is characterized in that: described piezoelectric sensor assembly comprises that one has the center shaft support, sheathed piezoelectric element and mass successively on the central shaft; Also comprise a circuit board, place on the mass; Described support, piezoelectric element, mass and circuit board cover in the radome, and circuit board is electrically connected with described connector by the cable that passes radome.
3. the piezoelectric acceleration transducer that detects as integrated temperature as described in the claim 2, it is characterized in that: described circuit board is signal amplifying and conditioning circuit.
4. as the claim 1-3 piezoelectric acceleration transducer that integrated temperature detects as described in each, it is characterized in that: isolated by an insulating trip between described piezoelectric sensor assembly and the heat-conducting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161304 CN203133107U (en) | 2013-04-02 | 2013-04-02 | Piezoelectric acceleration sensor integrated with temperature detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161304 CN203133107U (en) | 2013-04-02 | 2013-04-02 | Piezoelectric acceleration sensor integrated with temperature detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203133107U true CN203133107U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320161304 Expired - Lifetime CN203133107U (en) | 2013-04-02 | 2013-04-02 | Piezoelectric acceleration sensor integrated with temperature detection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN203133107U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238439A (en) * | 2018-08-09 | 2019-01-18 | 国网山东省电力公司淄博供电公司 | A kind of magnetic adsorption type transformer vibrating sensor and its detection method |
| WO2019047063A1 (en) * | 2017-09-06 | 2019-03-14 | 中国科学院深圳先进技术研究院 | Integrated detection sensor and touch sensing device |
| CN110068704A (en) * | 2019-03-21 | 2019-07-30 | 慧石（上海）测控科技有限公司 | A kind of multi-functional self-compensating high temperature acceleration transducer |
| CN112414712A (en) * | 2020-12-10 | 2021-02-26 | 陕西航天时代导航设备有限公司 | Axle box fault detection device |
-
2013
- 2013-04-02 CN CN 201320161304 patent/CN203133107U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047063A1 (en) * | 2017-09-06 | 2019-03-14 | 中国科学院深圳先进技术研究院 | Integrated detection sensor and touch sensing device |
| CN109238439A (en) * | 2018-08-09 | 2019-01-18 | 国网山东省电力公司淄博供电公司 | A kind of magnetic adsorption type transformer vibrating sensor and its detection method |
| CN110068704A (en) * | 2019-03-21 | 2019-07-30 | 慧石（上海）测控科技有限公司 | A kind of multi-functional self-compensating high temperature acceleration transducer |
| CN112414712A (en) * | 2020-12-10 | 2021-02-26 | 陕西航天时代导航设备有限公司 | Axle box fault detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
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| CX01 | Expiry of patent term |