CN2359663Y - Integral electric vortex displacement transducer - Google Patents
Integral electric vortex displacement transducer Download PDFInfo
- Publication number
- CN2359663Y CN2359663Y CN 98201898 CN98201898U CN2359663Y CN 2359663 Y CN2359663 Y CN 2359663Y CN 98201898 CN98201898 CN 98201898 CN 98201898 U CN98201898 U CN 98201898U CN 2359663 Y CN2359663 Y CN 2359663Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- probe
- amplifier circuit
- converter amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an integral electric vortex displacement transducer, which is composed of a probe, a converting amplifying circuit and an AC/DC power circuit, wherein, the probe is connected with the converting amplifying circuit, and the AC/DC power circuit is connected with the converting amplifying circuit; the converting amplifying circuit and the AC/DC power circuit are encapsulated in a metal casing to form a converter, the probe is fastened at the outer part of the metal casing, and the converter is directly supplied with the power by the AC 200V commercial power. The utility model has the advantage of simple structure, low cost and convenient operation; the utility model is directly supplied with the power by the AC 200V commercial power, and each set of transducer is electrically independent.
Description
The utility model relates to a kind of displacement measuring equipment, particularly a kind of integrated eddy current displacement sensor.
Because eddy current displacement sensor has non-cpntact measurement, the range of linearity is wide, dynamic response is good, antijamming capability is strong, can be in series of advantages such as the medium-term and long-term continuous workings of rugged surroundings such as oil, water, and the monitoring of the moving displacement amount when industries such as electric power, petrochemical industry, metallurgy are used as equipment work in a large number.Existing eddy current displacement sensor structure generally as shown in Figure 1, this structure for adapt to different working environments, different installation sites is designed, complex structure needs expensive special-purpose radio-frequency cable, make the costing an arm and a leg of a whole set of sensor, limited it and generally promoted; The prime amplifier of existing in addition eddy current displacement sensor need make sensor use inconvenience with the power supply of special D.C. regulated power supply, and when overlapping sensor more and being connected in the cover measuring system, the electrical isolation difficulty between the sensor.
The utility model is by with probe, prime amplifier, the integrated improvement of AC power, simplified sensor construction, greatly reduce the sensor cost, and integrated eddy current displacement sensor is directly with the power supply of civil power alternating current 220V, easy to use, there is not the problem of mutual isolation in the electric independence of every cover sensor, and making becomes possibility at every profession and trade wide popularization and application eddy current displacement sensor.
The technical solution of the utility model is as follows:
A kind of integrated eddy current displacement sensor is made of probe, converter amplifier circuit, AC/DC power circuit; Probe is connected with converter amplifier circuit; The AC/DC power circuit is connected with converter amplifier circuit; Converter amplifier circuit, AC/DC power circuit are encapsulated in the metal shell forms transducer; Probe is fastened to outside the metal shell; Transducer is directly by the alternating current 220V mains-supplied; Probe is exactly a telefault, one termination converter amplifier circuit signal " ", the other end meets the triode T of conversion amplifying circuit
1The C pin; Converter amplifier circuit is by operational amplifier A
1～A
8, resistance R
1～R
31, capacitor C
1～C
5, diode D
1, triode T
1, potentiometer W
1～W
2, K switch
1Constitute T
1, C
2, C
3Form a capacitance connecting three point type oscillator with probe coil, its oscillation amplitude and probe and measured body spacing are proportional, through diode D
1Detection, capacitor C
4Filtering will be popped one's head in and the measured body spacing converts direct current signal to, and this signal is through A
2～A
6Handle exportable standard signal, A in the signal normalization circuit of forming
7, R
28, R
29Formation+6V reference voltage, A
8, R
30, R
31Formation-1.5V reference voltage uses A for the signal normalization circuit
1, R
1, R
2, R
3, C
1Be used for stablizing the triode working point, W
1, W
2" zero " of conditioning signal point and " full scale " are worth respectively; AC/DC module N
1, C
6, C
7Constitute power circuit to converter amplifier circuit provide+24V and-the 12V D.C. regulated power supply.
In the integrated eddy current displacement sensor through A
2～A
6Standard signal Deng the signal normalization circuit output of forming is the standard signal of 4～20mA.
Problem at present eddy current displacement sensor, the utility model is by with probe, prime amplifier, the integrated improvement of AC power, saved expensive special-purpose radio-frequency cable, simplified sensor construction, greatly reduced the sensor cost, and integrated eddy current displacement sensor is directly with the power supply of civil power alternating current 220V, easy to use, there is not the problem of mutual isolation in the electric independence of every cover sensor, and making becomes possibility at every profession and trade wide popularization and application eddy current displacement sensor.
With embodiment the utility model is described in further detail with reference to the accompanying drawings below:
Fig. 1 is the circuit structure diagram of existing eddy current displacement sensor;
Fig. 2 is a structural drawing of the present utility model;
Fig. 3 is circuit theory diagrams of the present utility model;
Fig. 4 is the wiring diagram of circuit of the present utility model.
Shown in Fig. 2-3, a kind of integrated eddy current displacement sensor is made of probe, converter amplifier circuit, AC/DC power circuit; Probe is connected with converter amplifier circuit, pop one's head in to respond to the measured body displacement, exports after by converter amplifier circuit displacement being converted to electric signal and normalization; The AC/DC power circuit is connected with converter amplifier circuit, and the AC/DC power supply is supplied with the required power supply of converter amplifier circuit work; Converter amplifier circuit, AC/DC power circuit are encapsulated in the metal shell forms transducer; Probe is fastened to outside the metal shell; Transducer is directly by the alternating current 220V mains-supplied.
Circuit-line of the present utility model as shown in Figure 4, probe is exactly a telefault, one termination converter amplifier circuit signal " ", the other end connect the conversion amplifying circuit triode T
1The C pin; Converter amplifier circuit is by operational amplifier A
1～A
8, resistance R
1～R
31, capacitor C
1～C
5, diode D
1, triode T
1, potentiometer W
1～W
2, K switch
1Constitute T
1, C
2, C
3Form a capacitance connecting three point type oscillator with probe coil, its oscillation amplitude and probe and measured body spacing are proportional, through diode D
1Detection, capacitor C
4Filtering will be popped one's head in and the measured body spacing converts direct current signal to, and this signal is through A
2～A
6Handle exportable standard signal, A in the signal normalization circuit of forming
7, R
28, R
29Formation+6V reference voltage, A
8, R
30, R
31Formation-1.5V reference voltage uses A for the signal normalization circuit
1, R
1, R
2, R
3, C
1Be used for stablizing the triode working point, W
1, W
2" zero " of conditioning signal point and " full scale " are worth respectively; AC/DC module N
1, C
6, C
7Constitute power circuit to converter amplifier circuit provide+24V and-the 12V D.C. regulated power supply.
In the integrated eddy current displacement sensor through A
2～A
6Standard signal Deng the signal normalization circuit output of forming is the standard signal of 4～20mA.
Claims (2)
1, a kind of integrated eddy current displacement sensor is made of probe, converter amplifier circuit, AC/DC power circuit, it is characterized in that: probe is connected with converter amplifier circuit; The AC/DC power circuit is connected with converter amplifier circuit; Converter amplifier circuit, AC/DC power circuit are encapsulated in the metal shell forms transducer; Probe is fastened to outside the metal shell, and transducer is directly by the alternating current 220V mains-supplied; Probe is exactly a telefault, one termination converter amplifier circuit signal " ", the other end meets the triode T of conversion amplifying circuit
1The C pin; Converter amplifier circuit is by operational amplifier A
1～A
8, resistance R
1～R
31, capacitor C
1～C
5, diode D
1, triode T
1, potentiometer W
1～W
2, K switch
1Constitute T
1, C
2, C
3Form a capacitance connecting three point type oscillator with probe coil, its oscillation amplitude and probe and measured body spacing are proportional, through diode D
1Detection, capacitor C
4Filtering will be popped one's head in and the measured body spacing converts direct current signal to, and this signal is through A
2～A
6Handle exportable standard signal, A in the signal normalization circuit of forming
7, R
28, R
29Formation+6V reference voltage, A
8, R
30, R
31Formation-1.5V reference voltage uses A for the signal normalization circuit
1, R
1, R
2, R
3, C
1Be used for stablizing the triode working point, W
1, W
2" zero " of conditioning signal point and " full scale " are worth respectively; AC/DC module N
1, C
6, C
7Constitute power circuit to converter amplifier circuit provide+24V and-the 12V D.C. regulated power supply.
2, integrated eddy current displacement sensor according to claim 1 is characterized in that through A
2～A
6Standard signal Deng the signal normalization circuit output of forming is the standard signal of 4～20mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201898 CN2359663Y (en) | 1998-03-09 | 1998-03-09 | Integral electric vortex displacement transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201898 CN2359663Y (en) | 1998-03-09 | 1998-03-09 | Integral electric vortex displacement transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359663Y true CN2359663Y (en) | 2000-01-19 |
Family
ID=33959054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98201898 Expired - Fee Related CN2359663Y (en) | 1998-03-09 | 1998-03-09 | Integral electric vortex displacement transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359663Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327190C (en) * | 2006-01-25 | 2007-07-18 | 北京航空航天大学 | Radial/axial six-position integrated electric eddy transducer |
| CN102072694A (en) * | 2010-12-15 | 2011-05-25 | 北京经纬恒润科技有限公司 | Eddy current distance sensor |
| CN102620638A (en) * | 2012-03-22 | 2012-08-01 | 西安交通大学 | Aviation-specific displacement sensor measuring method |
| CN101713859B (en) * | 2008-09-29 | 2013-09-18 | 佳能株式会社 | Optical apparatus |
| CN109038190A (en) * | 2018-08-07 | 2018-12-18 | 吉林大学 | A kind of a variety of orphan's generators of sufficient center wavelength accuracy |
-
1998
- 1998-03-09 CN CN 98201898 patent/CN2359663Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327190C (en) * | 2006-01-25 | 2007-07-18 | 北京航空航天大学 | Radial/axial six-position integrated electric eddy transducer |
| CN101713859B (en) * | 2008-09-29 | 2013-09-18 | 佳能株式会社 | Optical apparatus |
| CN102072694A (en) * | 2010-12-15 | 2011-05-25 | 北京经纬恒润科技有限公司 | Eddy current distance sensor |
| CN102072694B (en) * | 2010-12-15 | 2013-06-12 | 北京经纬恒润科技有限公司 | Eddy current distance sensor |
| CN102620638A (en) * | 2012-03-22 | 2012-08-01 | 西安交通大学 | Aviation-specific displacement sensor measuring method |
| CN102620638B (en) * | 2012-03-22 | 2014-07-02 | 西安交通大学 | Aviation-specific displacement sensor measuring method |
| CN109038190A (en) * | 2018-08-07 | 2018-12-18 | 吉林大学 | A kind of a variety of orphan's generators of sufficient center wavelength accuracy |
| CN109038190B (en) * | 2018-08-07 | 2020-05-22 | 吉林大学 | Multiple soliton generators with stable central wavelength |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 2000.01.19 |