CN101819060A - Vibration transducer - Google Patents
Vibration transducer Download PDFInfo
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- CN101819060A CN101819060A CN201010154484A CN201010154484A CN101819060A CN 101819060 A CN101819060 A CN 101819060A CN 201010154484 A CN201010154484 A CN 201010154484A CN 201010154484 A CN201010154484 A CN 201010154484A CN 101819060 A CN101819060 A CN 101819060A
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Abstract
The invention discloses a vibration transducer, which is provided with a capacitive acceleration transducer, a two-order low pass filter of 500Hz and an integrated current transmitter. A vibration acceleration AC signal with bias voltage which is output by the acceleration transducer is input to the two-order low pass filter consisting of operational amplifiers and then input to the integrated current transmitter; and the current transmitter is a transmitter which outputs the AC vibration acceleration signal of 4 to 20mA corresponding to the full range. The vibration transducer of the invention converts a normal detector AC voltage signal and then outputs an industrial standard AC current signal by using a skillful circuit design so as to realize two-wire vibration measurement network and particularly improve the anti-interference performance of the transducer.
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.
Summary of the invention
The objective of the invention 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.
Technical scheme of the present invention is: vibration transducer, the low-pass filter, the integrated current transmitter that comprise capacitance acceleration transducer, two rank 500HZ constitute, the two rank 500HZ low-pass filtering that the vibration acceleration AC signal input operational amplifier of acceleration transducer output band bias voltage constitutes, input to the integrated current transmitter again, current transducer is the transmitter of interchange vibration acceleration signal electric current of 4～20mA of the corresponding full scale of output.A kind of vibration measurement sensor is characterized in that sensor is output as ac current signal.Current transducer is an XTR116 integrated current transmitter, is provided with bridge diagram and transient absorption pipe and constitutes holding circuit
Improvement of the present invention is: especially be input to XTR116 integrated current transmitter after the adjustment of amplifier multiplying power.The present invention 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 invention 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 invention has the beneficial effects as follows: the slewing that the present invention 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 present invention 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.Vibration transducer of the present invention 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 principle of the invention figure,
Fig. 2 is sensor construction figure of the present invention, 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 invention 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
The specific embodiment of the present invention 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 invention 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 (4)
1. vibration transducer, it is characterized in that being provided with low-pass filter, the integrated current transmitter of a capacitance acceleration transducer, two rank 500HZ, the two rank low-pass filtering that the vibration acceleration AC signal input operational amplifier of acceleration transducer output band bias voltage constitutes, input to the integrated current transmitter again, current transducer 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 at current transducer be XTR116 integrated current transmitter, is provided with bridge diagram and transient absorption pipe and constitutes holding circuit
3. vibration transducer according to claim 1 and 2 is characterized in that being input to XTR116 integrated current transmitter after the adjustment of amplifier multiplying power.
4. vibration transducer according to claim 3 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 |
|---|---|---|---|
| CN201010154484A CN101819060A (en) | 2010-04-23 | 2010-04-23 | Vibration transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010154484A CN101819060A (en) | 2010-04-23 | 2010-04-23 | Vibration transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101819060A true CN101819060A (en) | 2010-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010154484A Pending CN101819060A (en) | 2010-04-23 | 2010-04-23 | Vibration transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101819060A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606200A (en) * | 2014-10-29 | 2016-05-25 | 北京强度环境研究所 | Three-axial vibration sensor structure |
| CN108303467A (en) * | 2018-01-17 | 2018-07-20 | 刘锴 | Accelerometer, probe and the system of dynamic testing of pile method for intelligent terminal interface |
| CN113338912A (en) * | 2021-06-01 | 2021-09-03 | 威利朗沃矿业设备（北京）有限公司 | Cast type mining measurement while drilling device |
| CN113884129A (en) * | 2021-09-09 | 2022-01-04 | 国家石油天然气管网集团有限公司华南分公司 | Integrated acceleration speed vibration sensor |
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| CN101614566A (en) * | 2009-06-29 | 2009-12-30 | 合肥工业大学 | Low-power and two-wire vortex shedding flowmeter based on Fast Fourier Transform (FFT) |
| CN201697712U (en) * | 2010-04-23 | 2011-01-05 | 江阴众和电力仪表有限公司 | Vibration sensor |
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2010
- 2010-04-23 CN CN201010154484A patent/CN101819060A/en active Pending
Patent Citations (6)
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| JP2006284272A (en) * | 2005-03-31 | 2006-10-19 | Denso Corp | Sensor circuit in capacitive physical quantity sensor |
| CN2804832Y (en) * | 2005-07-01 | 2006-08-09 | 宋益纯 | Integrated type pipeline leakage noise transmitter |
| CN201047798Y (en) * | 2007-07-20 | 2008-04-16 | 广州市计量检测技术研究院 | Virtual vibration table detecting apparatus |
| CN101493355A (en) * | 2009-02-18 | 2009-07-29 | 长沙全程数字机电科技有限公司 | Integration oscillation monitoring instrument |
| CN101614566A (en) * | 2009-06-29 | 2009-12-30 | 合肥工业大学 | Low-power and two-wire vortex shedding flowmeter based on Fast Fourier Transform (FFT) |
| CN201697712U (en) * | 2010-04-23 | 2011-01-05 | 江阴众和电力仪表有限公司 | Vibration sensor |
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| 《农机使用与维修》 20080229 丛昕，等 集成微电容式无线加速度传感器的设计应用探讨 , 第1期 2 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606200A (en) * | 2014-10-29 | 2016-05-25 | 北京强度环境研究所 | Three-axial vibration sensor structure |
| CN105606200B (en) * | 2014-10-29 | 2018-08-21 | 北京强度环境研究所 | A kind of three-axial vibration sensor structure |
| CN108303467A (en) * | 2018-01-17 | 2018-07-20 | 刘锴 | Accelerometer, probe and the system of dynamic testing of pile method for intelligent terminal interface |
| CN113338912A (en) * | 2021-06-01 | 2021-09-03 | 威利朗沃矿业设备（北京）有限公司 | Cast type mining measurement while drilling device |
| CN113884129A (en) * | 2021-09-09 | 2022-01-04 | 国家石油天然气管网集团有限公司华南分公司 | Integrated acceleration speed vibration sensor |
| US11796554B2 (en) | 2021-09-09 | 2023-10-24 | China Oil & Gas Pipeline Network Corporation | Integrated acceleration, speed and vibration sensor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100901 |