CN206074019U - Piezoelectric transducer failure detector - Google Patents
Piezoelectric transducer failure detector Download PDFInfo
- Publication number
- CN206074019U CN206074019U CN201620907971.9U CN201620907971U CN206074019U CN 206074019 U CN206074019 U CN 206074019U CN 201620907971 U CN201620907971 U CN 201620907971U CN 206074019 U CN206074019 U CN 206074019U
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- China
- Prior art keywords
- module
- piezoelectric transducer
- power supply
- voltage protection
- status checking
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Abstract
The utility model discloses a kind of piezoelectric transducer failure detector, it encourages module, voltage protection module, status checking module, fault warning module, sensor interface to constitute by power supply；The detection means is connected to piezoelectric transducer on device by sensor interface, and is actuated to piezoelectric transducer by power supply and is powered, and DC bias signal is compared after voltage protection module in status checking module.If signal transfinites, the alarm of fault warning module.This utility model simple and quick can judge whether the state of piezoelectric transducer is normal, and simple structure is compact, portable equipment can be fabricated to, maintenance and fault diagnosis occasion suitable for piezoelectric transducer, execute-in-place is simple, detection for the working condition of piezoelectric transducer provides facility, improves the maintainability of piezoelectric transducer.
Description
Technical field
This utility model is related to a kind of hand-held piezoelectric transducer failure detector.
Background technology
Piezoelectric transducer is typically rigidly connected with testee, as piezoelectric transducer and cable dismounting need to expend a large amount of
Time, so when the system malfunctions of a set of application piezoelectric transducer need repairing, often taking considerable time investigation event
Barrier point, while needing the Professional knowledge that tester enriches.So need badly a set of dismounting be simple and convenient to operate, without the need for special in a large number
Industry knowledge, can directly indicate the whether faulty portable equipment of piezoelectric transducer.So as to the maintenance for system provides facility, subtract
While few workload, maintenance cost is reduced.
The content of the invention
The purpose of this utility model is to provide a kind of piezoelectric transducer detection means, for solving piezoelectricity in prior art
Sensor fault safeguards the problems such as need to expending worker workload, complex operation, need large amount of complex knowledge.
The technical scheme for realizing this utility model purpose is：
A kind of piezoelectric transducer failure detector, including power supply excitation module, sensor interface, voltage protection module,
Status checking module and fault warning module；
The power supply excitation module is used to provide power supply；
The sensor interface is connected with tested piezoelectric transducer, power supply excitation module, voltage protection module respectively, by electricity
The power supply of source forcing module output is supplied to tested piezoelectric transducer, and the DC offset voltage that tested piezoelectric transducer is exported is defeated
Go out to voltage protection module；
The voltage protection module is used for the size for limiting the DC bias signal from sensor interface, after restriction
DC bias signal is exported to status checking module；
The status checking module is connected with voltage protection module, for judging whether the DC bias signal after limiting surpasses
Limit；
The fault warning module is connected with status checking module, for judging DC bias signal when status checking module
Fault warning prompting is given during to transfinite.
Preferably, the power supply excitation module is lithium battery group.
Preferably, diode of the voltage protection module comprising two anti-phase series connection.
Preferably, the status checking module comprising the voltage ratio being compared for the lower limit with DC bias signal compared with
Device.
The piezoelectric transducer failure detector that this utility model is provided, can pass through the piezoelectric transducer information collected
(such as bias voltage value etc.) and piezoelectric transducer is realized detecting, understand the state of piezoelectric transducer, so as to subsequently can be right
There is abnormal problem piezoelectric transducer and take such as operation such as replacing, it is ensured that system normal condition, relative to prior art, nothing
Present situation need to be installed to piezoelectric transducer to be destroyed, without the knowledge of specialty, reduce workload, reduce failture evacuation
Difficulty and professional.And this utility model simple structure, technical staff can be facilitated to use as portable equipment.
Description of the drawings
Fig. 1 is the functional block diagram of this utility model piezoelectric transducer failure detector.
Fig. 2 is the structural representation of piezoelectric transducer failure detector in embodiment.
Description of reference numerals：
1 --- power supply encourages module；2 --- sensor interface；3 --- voltage protection module；4 --- status checkout mould
Block；5 --- fault warning module
Specific embodiment
Embodiment is given below, this utility model is further described.
As shown in figure 1, a kind of piezoelectric transducer failure detector, including power supply excitation module 1, sensor interface 2, electricity
Pressure protection module 3, status checking module 4 and fault warning module 5；
The power supply excitation module is used to provide power supply；
The sensor interface 2 is connected with tested piezoelectric transducer, power supply excitation module 1, voltage protection module 3 respectively,
The power supply that power supply encourages module output is supplied to into tested piezoelectric transducer, the direct current biasing electricity that tested piezoelectric transducer is exported
Pressure output is to voltage protection module；
The voltage protection module 3 is used for the size for limiting the DC bias signal from sensor interface, after limiting
DC bias signal export to status checking module；
The status checking module 4 is connected with voltage protection module 3, for whether judging the DC bias signal after limiting
Transfinite；
The fault warning module 5 is connected with status checking module 4, for judging that direct current biasing is believed when status checking module
Number for transfinite when be given fault warning prompting.
Fig. 2 is a preferred embodiment of this utility model piezoelectric transducer failure detector.
The present inventor presses embodiment：Power supply encourages module 1 for lithium battery group, and the lithium battery group examines to piezoelectric transducer failure
Survey device to power, while powering to tested piezoelectric transducer by sensor interface 2, sensor interface 2 accesses tested piezoelectricity and passes
The DC bias signal of sensor output.Voltage protection module 3 is clamp diode, is made up of the diode of two anti-phase series connection,
The diode pair DC bias signal of two anti-phase series connection is limited, it is to avoid DC bias signal is excessive too small to be made to this device
Into damage.As in actual applications, DC bias signal seldom occurs more than the situation of high threshold, therefore status checking module
4 can only include a voltage comparator, voltage comparator setting low threshold voltage, when DC bias signal is less than low-threshold power
During pressure, fault warning module is activated, it is also possible to be arranged to two voltage comparators, DC bias signal is respectively than electric with high threshold
Pressure is compared with low threshold voltage.Fault warning module may refer to show lamp, or warning prompt sound, work as fault warning
When module is activated, display lamp is bright or the prompt tone that gives a warning represents piezoelectric transducer failure.
Claims (4)
1. a kind of piezoelectric transducer failure detector, it is characterised in that including power supply excitation module, sensor interface, voltage
Protection module, status checking module and fault warning module；
The power supply excitation module is used to provide power supply；
The sensor interface is connected with tested piezoelectric transducer, power supply excitation module, voltage protection module respectively, and power supply is swashed
Encourage module output power supply be supplied to tested piezoelectric transducer, by tested piezoelectric transducer export DC offset voltage export to
Voltage protection module；
The voltage protection module is used for the size for limiting the DC bias signal from sensor interface, by the direct current after restriction
Offset signal is exported to status checking module；
The status checking module is connected with voltage protection module, for judging whether the DC bias signal after limiting transfinites；
The fault warning module is connected with status checking module, for judging that DC bias signal is super when status checking module
Fault warning prompting is given in limited time.
2. piezoelectric transducer failure detector according to claim 1, it is characterised in that the power supply excitation module is
Lithium battery group.
3. piezoelectric transducer failure detector according to claim 1, it is characterised in that the voltage protection module bag
Diode containing two anti-phase series connection.
4. piezoelectric transducer failure detector according to claim 1, it is characterised in that the status checking module bag
Containing the voltage comparator being compared for the lower limit with DC bias signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907971.9U CN206074019U (en) | 2016-08-18 | 2016-08-18 | Piezoelectric transducer failure detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907971.9U CN206074019U (en) | 2016-08-18 | 2016-08-18 | Piezoelectric transducer failure detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206074019U true CN206074019U (en) | 2017-04-05 |
Family
ID=58430834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620907971.9U Active CN206074019U (en) | 2016-08-18 | 2016-08-18 | Piezoelectric transducer failure detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206074019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682994A (en) * | 2018-12-24 | 2019-04-26 | 北京强度环境研究所 | A kind of ICP acceleration transducer device for testing passing through electric and system |
| CN113282026A (en) * | 2021-04-16 | 2021-08-20 | 矿冶科技集团有限公司 | Mining information acquisition and fault diagnosis device and method |
-
2016
- 2016-08-18 CN CN201620907971.9U patent/CN206074019U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682994A (en) * | 2018-12-24 | 2019-04-26 | 北京强度环境研究所 | A kind of ICP acceleration transducer device for testing passing through electric and system |
| CN109682994B (en) * | 2018-12-24 | 2022-03-25 | 北京强度环境研究所 | ICP acceleration sensor access inspection device and system |
| CN113282026A (en) * | 2021-04-16 | 2021-08-20 | 矿冶科技集团有限公司 | Mining information acquisition and fault diagnosis device and method |
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