CN203455365U - Impact-resistant quartz flexible accelerometer - Google Patents
Impact-resistant quartz flexible accelerometer Download PDFInfo
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- CN203455365U CN203455365U CN201320557980.6U CN201320557980U CN203455365U CN 203455365 U CN203455365 U CN 203455365U CN 201320557980 U CN201320557980 U CN 201320557980U CN 203455365 U CN203455365 U CN 203455365U
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- permanent magnet
- torquer coil
- impact
- damping block
- coil
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Abstract
The utility model discloses an impact-resistant quartz flexible accelerometer, which is suitable to be used in a high-impact environment. According to the utility model, based on the structure of the original quartz flexible accelerometer, a metal damping block is added on the end face of each of two moment coils. By adopting the above structure, the quartz flexible accelerometer can resist an impact of more than 100g in a power-off state, and an impact of more than 300g in a power-on state.
Description
Technical field
The utility model relates to sensor technical field, particularly a kind of anti-impact quartz flexible accelerometer.
Background technology
Quartz flexible accelerometer is the high-precision sensor of a kind of differential capacitance type closed loop, and it mainly consists of watch core 10 and servo circuit 20, as shown in Figure 1.Quartz flexible accelerometer principle of work is: when product has along responsive axial acceleration, do the used time, owing to there is no bonding force effect, pendulum keeps original motion state, and therefore relatively upper and lower torquer produces displacement, makes both sides capacity plate antenna form capacitance difference.Differential capacitance sensor is responsive to capacitance difference, produces an electric current proportional to capacitance difference.Electric current is carried on torquer coil after the processing such as servo circuit filtering, integration, amplification, the effect that current-carrying torquer coil is subject to torquer magnetic produces an electromagnetic force F identical with input acceleration direction, power F makes flexible pendulum produce identical with input acceleration direction, an equal-sized acceleration, makes flexible pendulum be returned to equilibrium position (two lateral capacitances equate).Now the electric current on torquer coil is directly proportional to input acceleration, and the electric current detecting on torquer coil can calculate input acceleration, realizes the measurement of acceleration.
Although quartz flexible accelerometer is inner, contain the flexible beam part that silica glass material is manufactured, restricted its impact resistance, under mill run no power state, impact resistance is generally not more than 20g, and under "on" position, shock resistance is generally not more than 150g.Along with accelerometer uses the continuous expansion in field, accelerometer shock resistance is required to more and more higher (as with boring the systems such as deviational survey, fall-down test), product impact resistance can not meet the demands at present.
Utility model content
Technical problem to be solved in the utility model provides a kind of anti-impact quartz flexible accelerometer, effectively improves quartz flexible accelerometer shock resistance energy.
For solving the problems of the technologies described above, the utility model solves the technical scheme that its technical matters adopts: a kind of anti-impact quartz flexible accelerometer, comprise, upper yoke, permanent magnet, torquer coil and quartz pendulous reed, described permanent magnet comprises the first permanent magnet, the second permanent magnet, described torquer coil comprises the first torquer coil, the second torquer coil, described the first permanent magnet and the second permanent magnet, the first torquer coil and the second torquer coil be symmetrical the right and left that is installed on described quartz pendulous reed respectively, described the first torquer coil comprises the first coil winding and the first winding supporter, described the second torquer coil comprises the second coil winding and the second winding supporter, described first, the end face of the second winding supporter respectively embeds a damping block, described damping block is that magnetic material is made, pinking on described damping block, described aperture is corresponding with the position of the central through hole of quartz pendulous reed.
Preferably, the gravity axle center of described damping block and the axle center coaxial cable of first, second torquer coil.
Preferably, described damping block section is circle or regular polygon.
Damping block is subject to the attractive force of permanent magnet, increases the ratio of damping that pendulum assembly swings, and improves product shock resistance and vibration ability.
The beneficial effects of the utility model are: the utility model, by increasing damping block at torquer coil and quartz pendulous reed, has improved the impact resistance under product no power state, has strengthened the reliability of product.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further described in detail.
Fig. 1 is quartz flexible accelerometer fundamental diagram.
10. watch cores in Fig. 1,20. servo circuits.
Fig. 2 is the quartz flexible accelerometer watch core structural drawing of the utility model embodiment.
Yoke, 2. permanent magnet, 3. damping block, 4. torquer coil, 5. quartz pendulous reed, 6. lower yoke on 1. in Fig. 2.
Embodiment
As shown in Figure 2, anti-impact quartz flexible accelerometer watch core comprises yoke 1, lower yoke 6, permanent magnet, torquer coil and quartz pendulous reed 5, permanent magnet comprises the first permanent magnet 2, the second permanent magnet 21, torquer coil comprises the first torquer coil 4, the second torquer coil 41, first, the second permanent magnet, first, the second torquer coil is symmetrical the right and left that is installed on quartz pendulous reed 5 respectively, the first torquer coil comprises the first coil winding and the first winding supporter, the second torquer coil comprises the second coil winding and the second winding supporter, first, the end face of the second winding supporter respectively embeds the damping block 3 that a section is circle or regular polygon, 31, damping block 3, on 31, in the end face direction of vertical winding supporter, be installed with respectively through hole, through hole is corresponding with the position of the central through hole of quartz pendulous reed.Avoid like this stopping up because of solid damping block the central through hole of quartz pendulous reed, quartz pendulous reed cannot be swung because of two ends negative pressure.The gravity axle center of damping block and the axle center coaxial cable of first, second torquer coil.Making for thering is magnetic metal material of damping block.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. an anti-impact quartz flexible accelerometer, comprise yoke, permanent magnet, torquer coil and quartz pendulous reed, described permanent magnet comprises the first permanent magnet and the second permanent magnet, described torquer coil comprises the first torquer coil and the second torquer coil, described the first permanent magnet and the second permanent magnet, the first torquer coil and the second torquer coil be symmetrical the right and left that is installed on described quartz pendulous reed respectively, described the first torquer coil comprises the first coil winding and the first winding supporter, described the second torquer coil comprises the second coil winding and the second winding supporter, it is characterized in that, described first, the end face of the second winding supporter respectively embeds a damping block, described damping block is that magnetic material is made, on described damping block, be installed with through hole, described through hole is corresponding with the position of the central through hole of quartz pendulous reed.
2. anti-impact quartz flexible accelerometer according to claim 1, is characterized in that, the gravity axle center of described damping block and the axle center coaxial cable of described torquer coil.
3. anti-impact quartz flexible accelerometer according to claim 2, is characterized in that, described damping block section be shaped as circle or regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557980.6U CN203455365U (en) | 2013-09-09 | 2013-09-09 | Impact-resistant quartz flexible accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557980.6U CN203455365U (en) | 2013-09-09 | 2013-09-09 | Impact-resistant quartz flexible accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455365U true CN203455365U (en) | 2014-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557980.6U Expired - Lifetime CN203455365U (en) | 2013-09-09 | 2013-09-09 | Impact-resistant quartz flexible accelerometer |
Country Status (1)
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| CN (1) | CN203455365U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918720A (en) * | 2017-04-10 | 2017-07-04 | 浙江大学 | A kind of filament restricted type acceleration transducer |
| CN107703329A (en) * | 2017-09-29 | 2018-02-16 | 中国船舶重工集团公司第七0七研究所 | Vacuum holding structure for high-resolution quartz flexible accelerometer |
| CN109085383A (en) * | 2018-09-19 | 2018-12-25 | 中国船舶重工集团公司第七0七研究所 | A kind of novel pendulum-type accelerometer |
| CN109085384A (en) * | 2018-10-29 | 2018-12-25 | 中国船舶重工集团公司第七0七研究所 | A kind of high stability quartz flexible accelerometer using Novel swing modular construction |
| CN112394197A (en) * | 2020-11-06 | 2021-02-23 | 中国航空工业集团公司西安飞行自动控制研究所 | Pendulum accelerometer |
| CN115963293A (en) * | 2023-02-07 | 2023-04-14 | 北京神导科技股份有限公司 | Anti-seismic and anti-impact quartz flexible accelerometer |
| CN118501497A (en) * | 2024-07-16 | 2024-08-16 | 中国船舶集团有限公司第七〇七研究所 | All-quartz sensitive part for accelerometer |
-
2013
- 2013-09-09 CN CN201320557980.6U patent/CN203455365U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918720A (en) * | 2017-04-10 | 2017-07-04 | 浙江大学 | A kind of filament restricted type acceleration transducer |
| CN106918720B (en) * | 2017-04-10 | 2019-05-14 | 浙江大学 | A kind of filament restricted type acceleration transducer |
| CN107703329A (en) * | 2017-09-29 | 2018-02-16 | 中国船舶重工集团公司第七0七研究所 | Vacuum holding structure for high-resolution quartz flexible accelerometer |
| CN107703329B (en) * | 2017-09-29 | 2019-11-26 | 中国船舶重工集团公司第七0七研究所 | Vacuum for high-resolution quartz flexible accelerometer keeps structure |
| CN109085383A (en) * | 2018-09-19 | 2018-12-25 | 中国船舶重工集团公司第七0七研究所 | A kind of novel pendulum-type accelerometer |
| CN109085384A (en) * | 2018-10-29 | 2018-12-25 | 中国船舶重工集团公司第七0七研究所 | A kind of high stability quartz flexible accelerometer using Novel swing modular construction |
| CN112394197A (en) * | 2020-11-06 | 2021-02-23 | 中国航空工业集团公司西安飞行自动控制研究所 | Pendulum accelerometer |
| CN115963293A (en) * | 2023-02-07 | 2023-04-14 | 北京神导科技股份有限公司 | Anti-seismic and anti-impact quartz flexible accelerometer |
| CN115963293B (en) * | 2023-02-07 | 2023-07-18 | 北京神导科技股份有限公司 | Anti-seismic impact-resistant quartz flexible accelerometer |
| CN118501497A (en) * | 2024-07-16 | 2024-08-16 | 中国船舶集团有限公司第七〇七研究所 | All-quartz sensitive part for accelerometer |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
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| CX01 | Expiry of patent term |