CN203084008U - Anti-interference quartz flexible acceleration sensor - Google Patents
Anti-interference quartz flexible acceleration sensor Download PDFInfo
- Publication number
- CN203084008U CN203084008U CN 201320073301 CN201320073301U CN203084008U CN 203084008 U CN203084008 U CN 203084008U CN 201320073301 CN201320073301 CN 201320073301 CN 201320073301 U CN201320073301 U CN 201320073301U CN 203084008 U CN203084008 U CN 203084008U
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- China
- Prior art keywords
- quartz flexible
- differential capacitor
- flexible acceleration
- acceleration transducer
- acceleration sensor
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Abstract
The utility model discloses an anti-interference quartz flexible acceleration sensor. The quartz flexible acceleration sensor comprises a gauge outfit, a circuit cover and a servo circuit. The gauge outfit comprises a differential capacitor, a proof mass pendulum assembly and an electromagnetic torque inside; the anode wiring end and the negative wiring end of the differential capacitor are shielded at the inner side of the circuit cover and are not led out, and therefore, influences of environmental factors on changes in capacitance are reduced, so that the anti-interference quartz flexible acceleration sensor can be used under poor working conditions. The anti-interference quartz flexible acceleration sensor is higher in precision and stronger in anti-interference capability.
Description
Technical field
The present invention relates to a kind of acceleration transducer, relate in particular to a kind of jamproof quartz flexible acceleration transducer, belong to sensor technical field.
Background technology
Acceleration transducer is a kind of impact, vibration instrument commonly used measured, main be transformed into the electric signal of being convenient to measure by this physical signalling of degree of will speed up and measure, be widely used at present in the fields such as the navigational guidance of petroleum drilling, space flight, aviation, navigation and armament systems and control.
The quartz flexible acceleration transducer is a kind of mechanical pendulum-type acceleration transducer, has precision height, characteristics highly sensitive, low in energy consumption, and it is simple in structure simultaneously, volume is little, in light weight, and is easy to use and change.This acceleration transducer mainly is made of gauge outfit and servo circuit, its encapsulating structure commonly used as shown in Figure 1, constitute by 10 pins, wherein pin 1 is a torquer negative pole incoming end, pin 2 is the anodal incoming end of torquer, pin 3 is-the 15V input end, pin 4 is+the 15V input end, pin 5 is a ground terminal, pin 6 is the self check end, and pin 7 is-the 9V/-5V output terminal that pin 8 is+the 9V/+5V output terminal, pin 9 is the negative terminals (C-) of differential capacitor, and pin 10 is the positive terminal (C+) of differential capacitor.Servo circuit mainly is that the subtle change of electric capacity that the quartz flexible acceleration transducer is caused owing to extraneous acceleration is converted to corresponding electric current output.
Along with the continuous expansion of application, new requirement has been proposed for the performance of quartz flexible acceleration transducer.In the abominable application scenario of a few thing environment, for example petroleum drilling is medium with control with the navigational guidance that bores deviational survey system, armament systems, requires the quartz flexible acceleration transducer to have higher precision, stronger antijamming capability.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of jamproof quartz flexible acceleration transducer.This quartz flexible acceleration transducer passes through Shielding Design cleverly, can effectively improve antijamming capability.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of quartz flexible acceleration transducer comprises gauge outfit, circuit lid and servo circuit, wherein:
Comprise differential capacitor in the described gauge outfit, detect quality pendulum assembly and electromagnetic torque device;
The positive terminal of described differential capacitor and negative terminals shielding are inboard at the circuit lid.
Wherein more preferably, described servo circuit comprises differential capacitor detecting device, amplifier, circuit for rectifying, feedback network;
The two ends of described differential capacitor detecting device are connected with negative terminals with the positive terminal of described differential capacitor respectively.
The utility model shields by positive terminal (C+) and the negative terminals (C-) with differential capacitor, has effectively improved the antijamming capability of acceleration transducer, is convenient to further to improve its precision and to the adaptive faculty of rugged surroundings.
Description of drawings
Fig. 1 is the encapsulation synoptic diagram of existing quartz flexible acceleration transducer;
Fig. 2 is the front view of quartz flexible acceleration transducer provided by the utility model;
Fig. 3 is the side view of quartz flexible acceleration transducer provided by the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
For the quartz flexible acceleration transducer is worked uninterruptedly, guarantee that it has higher precision under the abominable application scenario of environment.The utility model provides a kind of novel quartz flexible acceleration transducer.It passes through novelty Shielding Design cleverly, has effectively improved the antijamming capability of quartz flexible acceleration transducer.
This quartz flexible acceleration transducer is made up of gauge outfit, circuit lid and servo circuit, wherein, comprises differential capacitor in the gauge outfit, detects quality pendulum assembly and electromagnetic torque device.Servo circuit is made of differential capacitor detecting device, amplifier, circuit for rectifying, feedback network etc.Acceleration transducer is when work, and extraneous acceleration is along the input shaft effect of acceleration transducer, and consequent inertial force acts on and detects quality pendulum assembly, causes its position to change, thereby causes the capacitance variation of differential capacitor.The variation of this capacitance is transferred in the servo circuit, differential capacitor detecting device in the servo circuit detects the variation of differential capacitor, and after by amplifier and circuit for rectifying this variable signal being amplified, corrects, be transformed into corresponding current feedback to the electromagnetic torque device, thereby the generation electromagnetic torque makes that detecting quality pendulum assembly comes back to equilibrium state.Under the dynamic balance state, act on the inertial force that detects on the quality pendulum assembly and the electromagnetic force equilibrium of electromagnetic torque device, calculate the size of extraneous acceleration by the survey sensor output valve.
As shown in Figure 2, the encapsulating structure of servo circuit is made of 8 pins, supporting with it circuit lid also has 8 pin via holes, and wherein pin 1 is the torquer negative input, and pin 2 is the torquer electrode input end, pin 3 is-the 15V input end, pin 4 is+the 15V input end, and pin 5 is a ground terminal, and pin 6 is the self check end, pin 7 is-the 9V/-5V output terminal that pin 8 is+the 9V/+5V output terminal.More preferably, present embodiment is connected the differential capacitor detecting device with the two ends of differential capacitor in the gauge outfit, thereby it is the positive terminal (C+) and negative terminals (C-) shielding of differential capacitor is inboard at the circuit lid, so just reduced because the influence that the variation of external environment produces differential capacitor, the variation that makes differential capacitor is because the variation of acceleration is caused fully, and then has improved the antijamming capability of acceleration transducer.
Quartz flexible acceleration transducer provided by the utility model is by positive terminal (C+) and negative terminals (C-) shielding with differential capacitor, do not draw from the circuit lid, can prevent effectively in the abominable application scenario of a few thing environment, for example petroleum drilling is medium with control with the navigational guidance that bores deviational survey system, armament systems, influence the variation of differential capacitor owing to the influence of foeign elements such as environment, and then influence the measuring accuracy of acceleration transducer, improved the antijamming capability of acceleration transducer.
More than quartz flexible acceleration transducer provided by the utility model is had been described in detail, but be not to restriction of the present utility model.Therefore, for one of ordinary skill in the art, any conspicuous change of under the prerequisite that does not deviate from the utility model connotation it being done all will constitute to the utility model infringement of patent right, with corresponding legal responsibilities.
Claims (2)
1. a quartz flexible acceleration transducer comprises gauge outfit, circuit lid and servo circuit, it is characterized in that:
Comprise differential capacitor in the described gauge outfit, detect quality pendulum assembly and electromagnetic torque device;
The positive terminal of described differential capacitor and negative terminals shielding are in the inboard of described circuit lid.
2. quartz flexible acceleration transducer as claimed in claim 1 is characterized in that:
Described servo circuit comprises differential capacitor detecting device, amplifier, circuit for rectifying and feedback network;
The two ends of described differential capacitor detecting device are connected with negative terminals with the positive terminal of described differential capacitor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073301 CN203084008U (en) | 2013-02-08 | 2013-02-08 | Anti-interference quartz flexible acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073301 CN203084008U (en) | 2013-02-08 | 2013-02-08 | Anti-interference quartz flexible acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084008U true CN203084008U (en) | 2013-07-24 |
Family
ID=48829833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320073301 Expired - Fee Related CN203084008U (en) | 2013-02-08 | 2013-02-08 | Anti-interference quartz flexible acceleration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203084008U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280571A (en) * | 2014-10-15 | 2015-01-14 | 重庆大学 | Electromagnetic balance type acceleration sensor |
| CN107561314A (en) * | 2016-06-30 | 2018-01-09 | 航天科工惯性技术有限公司 | A kind of quartz flexible accelerometer and its frock |
-
2013
- 2013-02-08 CN CN 201320073301 patent/CN203084008U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280571A (en) * | 2014-10-15 | 2015-01-14 | 重庆大学 | Electromagnetic balance type acceleration sensor |
| CN104280571B (en) * | 2014-10-15 | 2016-09-14 | 重庆大学 | Electromagnetic balance formula acceleration transducer |
| CN107561314A (en) * | 2016-06-30 | 2018-01-09 | 航天科工惯性技术有限公司 | A kind of quartz flexible accelerometer and its frock |
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Legal Events
| 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: 20130724 Termination date: 20190208 |