CN201697712U - Vibration sensor - Google Patents
Vibration sensor Download PDFInfo
- Publication number
- CN201697712U CN201697712U CN2010201699241U CN201020169924U CN201697712U CN 201697712 U CN201697712 U CN 201697712U CN 2010201699241 U CN2010201699241 U CN 2010201699241U CN 201020169924 U CN201020169924 U CN 201020169924U CN 201697712 U CN201697712 U CN 201697712U
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- vibration
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- signal
- integrated current
- sensor
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a vibration sensor, which is provided with a capacitive acceleration sensor, a two-stage 500Hz low-pass filter and an integrated current converter, wherein a vibration acceleration alternating current signal with a bias voltage, output by the acceleration sensor, is input into the two-stage low-pass filter formed by an operation amplifier and then input into the integrated current converter, wherein the current converter can output a 4-20mA of alternating current vibration acceleration signal current corresponding to a scale span. In the utility model, an artful circuit design is adopted for the vibration sensor to output an industrial standard alternating current signal by converting the common alternating current voltage signal of a detector, therefore, a two-wire system vibration network measurement is realized, and particularly, the anti-interference property of the sensor is improved.
Description
Technical field
The present invention relates to a kind of sensor.Especially the vibrating sensing apparatus that uses of slewing monitoring and protecting field.
Background technology
The slewing monitor protection needs vibration transducer, and voltage or electric charge output form are all adopted in the output of conventional vibration sensor, and voltage and charge signal transmission are interfered and distorted signals easily.Therefore adopt the vibration sensor signal of alternating current output to have improved the sensor interference free performance, realized discrete device Centralized Monitoring and fault diagnosis in abominable electromagnetic environment long-distance transmissions.
The utility model content
The purpose of this utility model is to propose a kind of device that detects mechanical equipment vibration, it is the vibration transducer of alternating current output, can realize long signal transmission apart from low distortion, improve the interference free performance of sensor, device end can connect monitoring device and fault analysis device, thereby realizes remote vibration signal transmission.
The technical solution of the utility model is: a kind of vibration transducer, low-pass filter and integrated current transmitter by a capacitance acceleration transducer, two rank 500HZ constitute, the low-pass filter of the two rank 500HZ that the vibration acceleration AC signal input operational amplifier of capacitance acceleration transducer output band bias voltage constitutes, low-pass filter output inputs to the integrated current transmitter again, and the integrated current transmitter is the transmitter of interchange vibration acceleration signal electric current of 4～20mA of the corresponding full scale of output.Sensor is output as ac current signal.Current transducer is an XTR116 integrated current transmitter, and the current transducer output terminal is provided with bridge diagram and the transient absorption pipe constitutes holding circuit
Improvement of the present utility model is: especially be input to XTR116 integrated current transmitter after the adjustment of amplifier multiplying power.The utility model is integrated signals collecting in sensor, signal transformation functionality, and voltage signal is transformed into ac current signal, realizes the vibration signal long-distance transmissions, improves remote monitoring and fault diagnosis reliability, saves factory's wiring cost.
Vibration transducer of the present utility model is taked circuit design cleverly, and common wave detector ac voltage signal through conversion, is exported (4～20mA) ac current signals, realization two-wire system vibration survey network, the raising simultaneously of industrial standard
The beneficial effects of the utility model are: the slewing that the utility model proposes monitors needs to adopt vibration transducer, remote discrete device can directly be gathered the alternating current vibration signal for monitoring device and failure diagnosis apparatus, it is the alternating current vibration transducer, not only can also be directly inputted to the failure diagnosis apparatus terminal as conventional monitoring device signal source.It is simple in structure, the reliability height, to the end instrument circuit require lowly, on-site installation and maintenance are easy, and are easy to use.The utility model especially adopts the low-pass filter of capacitance acceleration transducer and two rank 500HZ and exports through the integrated current transmitter, the two rank 500HZ low-pass filtering that adopt operational amplifier to constitute meet remote discrete device and can directly gather the alternating current vibration signal for monitoring device and failure diagnosis apparatus.The utility model vibration transducer is taked circuit design cleverly, common wave detector ac voltage signal process conversion, the output industrial standard (4～20mA) ac current signals are realized two-wire system vibration survey network, have especially improved the sensor interference free performance.
Description of drawings:
Fig. 1 is the utility model schematic diagram,
Fig. 2 is the utility model sensor construction figure, comprises side-looking structure 2a and looks closely structure 2b,
Fig. 3 is the low-pass filter of circuit embodiments map sensor signal of the present utility model by two rank 500HZ,
Fig. 4 is XTR116 integrated current transmitter circuit figure.
Antifreeze aviation plug 1, screw 2, end cover 3, lead 4, Stainless Steel Shell 5, epoxy glue 6, circuit board 7, acceleration transducer 8, nameplate 9, installation threaded hole 10.
Embodiment
Embodiment of the present utility model is as follows: referring to Fig. 1 and Fig. 2, sensor construction is to adopt an ADXL320 capacitance acceleration transducer; the vibration acceleration AC signal of output (174mV/G); input operational amplifier is done the two rank low-pass filtering of 500HZ; after the adjustment of amplifier multiplying power, be input to XTR116 integrated current transmitter again; export the interchange vibration acceleration signal of 4～20mA of corresponding full scale, bridge diagram and transient absorption pipe constitute holding circuit.
(comprise side-looking structure 2a and look closely structure 2b) among Fig. 2 sensor construction figure, shell adopts Stainless Steel Shell, sensor and treatment circuit all concentrate on the internal circuit board, and tail end is output as two core aviation connectors, and seal ring oxygen glue fixation of sensor and circuit board are watered in inside.
Among Fig. 3, sensor signal on the XTR116 integrated current transmitter through being transferred to Fig. 4 after the gain-adjusted, and is provided with bridge diagram and transient absorption pipe formation holding circuit by the low-pass filter of two rank 500HZ.Output prevents the reversal connection of power supply and common port by bridge diagram protection, and P6KE transient absorption protection of pipe sensor is not damaged by high-voltage signal among Fig. 4, and C4 electric capacity prevents to grow the resonance that cable transmission causes for moving back even electric capacity.Be connected to the output bridge diagram among Fig. 4 between 4 of output terminal, 7 pin earlier and export, output terminal is parallel with electric capacity again, and the electric bridge output terminal is connected to the transient absorption diode,
Vibration transducer of the present utility model is taked circuit design cleverly, common wave detector ac voltage signal process conversion, (4～20mA) ac current signals of output industrial standard, realize two-wire system vibration survey network, improved the interference free performance of system simultaneously, far-end can directly connect fault diagnosis system, compares traditional measurement method and has saved a large amount of wiring costs.
Especially after doubly adjusting, amplifier (1～5) is input to (40～200 μ A) current signal that the R6 current sampling resistor produces, output (4～20mA) ac current signals after XTR116 integrated current transmitter amplifies 100 times.
Claims (3)
1. vibration transducer, it is characterized in that constituting by low-pass filter and the integrated current transmitter of a capacitance acceleration transducer, two rank 500HZ, the low-pass filter of the two rank 500HZ that the vibration acceleration AC signal input operational amplifier of capacitance acceleration transducer output band bias voltage constitutes, low-pass filter output inputs to the integrated current transmitter again, and the integrated current transmitter is the transmitter of interchange vibration acceleration signal electric current of 4～20mA of the corresponding full scale of output.
2. vibration transducer according to claim 1 is characterized in that the integrated current transmitter is an XTR116 integrated current transmitter, and the current transducer output terminal is provided with bridge diagram and the transient absorption pipe constitutes holding circuit.
3. vibration transducer according to claim 2 is characterized in that being connected to earlier between 4,7 pin of integrated current transmitter output terminal the output bridge diagram and exports, and output terminal is parallel with electric capacity again, and the electric bridge output terminal also is connected to the transient absorption diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201699241U CN201697712U (en) | 2010-04-23 | 2010-04-23 | Vibration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201699241U CN201697712U (en) | 2010-04-23 | 2010-04-23 | Vibration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201697712U true CN201697712U (en) | 2011-01-05 |
Family
ID=43398960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201699241U Expired - Lifetime CN201697712U (en) | 2010-04-23 | 2010-04-23 | Vibration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201697712U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819060A (en) * | 2010-04-23 | 2010-09-01 | 江阴众和电力仪表有限公司 | Vibration transducer |
| CN105429622A (en) * | 2015-11-10 | 2016-03-23 | 蚌埠天光传感器有限公司 | Multi-channel anti-interference transmitter |
| CN109579974A (en) * | 2017-09-28 | 2019-04-05 | 比亚迪股份有限公司 | Vibration signal processing device, method, vehicle and train |
-
2010
- 2010-04-23 CN CN2010201699241U patent/CN201697712U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819060A (en) * | 2010-04-23 | 2010-09-01 | 江阴众和电力仪表有限公司 | Vibration transducer |
| CN105429622A (en) * | 2015-11-10 | 2016-03-23 | 蚌埠天光传感器有限公司 | Multi-channel anti-interference transmitter |
| CN109579974A (en) * | 2017-09-28 | 2019-04-05 | 比亚迪股份有限公司 | Vibration signal processing device, method, vehicle and train |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |