CN203572500U - Enhanced long distance analog quantity output proximity sensor - Google Patents
Enhanced long distance analog quantity output proximity sensor Download PDFInfo
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- CN203572500U CN203572500U CN201320745683.4U CN201320745683U CN203572500U CN 203572500 U CN203572500 U CN 203572500U CN 201320745683 U CN201320745683 U CN 201320745683U CN 203572500 U CN203572500 U CN 203572500U
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Abstract
The utility model provides an enhanced long distance analog quantity output proximity sensor. The enhanced long distance analog quantity output proximity sensor comprises a probe body, an induction electrode and a shielding layer are arranged in the probe body, and the proximity sensor also comprises a high frequency LC oscillating circuit, an F/V converting circuit, a signal processing amplification circuit, and an analog signal output circuit connected in sequence. Compared with the ordinary proximity sensor, the enhanced long distance digital quantity output proximity sensor is advantageous in that the detection distance is three times to four times as much as the detection distance of the ordinary sensor with equal cost and dimension so that long-distance detection can be realized, and the sensor employs analog signals to output data. Therefore, The enhanced long distance digital quantity output proximity sensor is quite applicable to occasions of mechanical structures with strict requirements of installation dimension and longer detection distance, and occasions in need of analog quantity signals for data transmission.
Description
Technical field:
The utility model belongs to sensor technical field, refers in particular to the remote analog output proximity transducer of a kind of enhancement mode.
Background technology:
In sensor field, no matter be the past or present, all there is a general contradiction: i.e. the contradiction of the distance length of the physical dimension of sensor size and its detection, is specially: make to detect distance, just must select powerful parts, also just cause physical dimension to strengthen, one of consequence causing like this increases with regard to material, and cost is difficult to reduce, and it two will be made troubles to installation, particularly in the situation that installing space is limited, just seem and bother very much, when serious, even do not install.
On the other hand, some field as: tension control system, deviation-rectifying system, range finding etc. need to adopt simulating signal transmit data, only have digital transducer to satisfy the demand.
Utility model content:
The purpose of this utility model is to overcome the above-mentioned weak point of prior art, provide a kind of enhancement mode remote analog output proximity transducer, it can not change under the prerequisite of size sensor, significantly improve the detection distance of sensor, and be applicable to need the occasion of analog signals transmission data.
The technical solution adopted in the utility model is: the remote analog output proximity transducer of a kind of enhancement mode, it establishes the probe body of induction electrode and screen layer in comprising, described proximity transducer also comprises the high frequency LC oscillatory circuit, F/V change-over circuit, signal processing amplifying circuit and the analog signal output circuit that connect successively.
Described high frequency LC oscillatory circuit is comprised of the first comparer, capacitor C 6, resistance R 13, R14, R15, R16, R17, R18, wherein, positive input terminal contact resistance R13, the R14 of the first comparer, negative input end contact resistance R16 and capacitor C 6, capacitor C 6 one end ground connection; One end contact resistance R16 of resistance R 17 and the common port of capacitor C 6, another termination power; One end contact resistance R16 of resistance R 18 and the common port of capacitor C 6, other end ground connection; One end of resistance R 15 connects the negative input end of the first comparer, and the other end connects the output terminal of the first comparer.
The output terminal of the first comparer of described high frequency LC oscillatory circuit connects F/V change-over circuit by a resistance R 19, and described F/V change-over circuit is comprised of the second comparer, capacitor C 7, adjustable resistance R21; Wherein, the positive input terminal contact resistance R19 of the second comparer; One end of capacitor C 7 is also connected with the positive input terminal of the second comparer, other end ground connection; The negative input end of the second comparer connects described adjustable resistance R21.
The output terminal of the second comparer of described F/V change-over circuit connects signal and processes amplifying circuit, described signal is processed amplifying circuit and is comprised of triode Q and diode D4, wherein, the collector of triode Q is connected with the output terminal of described the second comparer, and the base stage of triode Q also connects the second comparer; The two ends of diode D4 are the emitter and collector of connecting triode Q respectively, and the emitter and collector of triode Q is also connected with analog signal output circuit respectively.
Described analog signal output circuit is comprised of the 3rd comparer, capacitor C 8, resistance R 11, and wherein, the positive input terminal of the 3rd comparer is connected with the collector of triode Q, and negative input end is connected with the emitter of triode Q; The output terminal of the 3rd comparer is connecting analog signal output port, resistance R 11, resistance R 12 respectively, and the other end of resistance R 11 connects power supply, ground connection after the other end connection LED light D3 of resistance R 12; One end of capacitor C 8 is connected with the 3rd comparer, other end ground connection.
Pass through technique scheme, the utility model proximity transducer is compared with common proximity transducer, in cost situation suitable for physical dimension, the detection of the utility model proximity transducer apart from 3-4 doubly to the detection distance of common sensor, thereby can realize remote detection; And, the utility model adopts analog signal output data, therefore, the utility model sensor is very suitable for for physical construction, installation dimension being had strict demand, being detected apart from larger again occasion, and is applicable to need analog signals to transmit the occasion of data.
Accompanying drawing explanation:
Fig. 1 is the structured flowchart of the utility model proximity transducer;
Fig. 2 is the circuit diagram of the utility model proximity transducer;
Fig. 3 is the range finding design sketch of the utility model proximity transducer.
Embodiment:
Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
As shown in FIG. 1 to 3, the remote analog output proximity transducer of a kind of enhancement mode described in the utility model, it establishes the probe body 1 of induction electrode 11 and screen layer 12 in comprising, described proximity transducer also comprises successively the high frequency LC oscillatory circuit 2(that connects, and it produces source as alternating magnetic field), F/V change-over circuit 3(its as signal trigger), signal process amplifying circuit 4(its as processing amplifier) and its D/A conversion processor as digital signal converting analogue signals of analog signal output circuit 5(, and outputting analog signal).
Particularly, described high frequency LC oscillatory circuit 2 is comprised of the first comparer 21, capacitor C 6, resistance R 13, R14, R15, R16, R17, R18, wherein, and positive input terminal contact resistance R13, the R14 of the first comparer, negative input end contact resistance R16 and capacitor C 6, capacitor C 6 one end ground connection; One end contact resistance R16 of resistance R 17 and the common port of capacitor C 6, another termination power; One end contact resistance R16 of resistance R 18 and the common port of capacitor C 6, other end ground connection; One end of resistance R 15 connects the negative input end of the first comparer, and the other end connects the output terminal of the first comparer.
The output terminal of the first comparer 21 of described high frequency LC oscillatory circuit 2 connects F/V change-over circuit 3 by a resistance R 19, and described F/V change-over circuit is comprised of the second comparer 31, capacitor C 7, adjustable resistance R21; Wherein, the positive input terminal contact resistance R19 of the second comparer 31, connects the output terminal of the first comparer in described high frequency LC oscillatory circuit by resistance R 19; One end of capacitor C 7 is also connected with the positive input terminal of the second comparer 31, other end ground connection; The negative input end of the second comparer 31 connects described adjustable resistance R21.
The output terminal of the second comparer 31 of described F/V change-over circuit 3 connects signal and processes amplifying circuit 4, described signal is processed amplifying circuit 4 and is comprised of triode Q and diode D4, wherein, triode Q is NPN type triode, the collector of triode Q is connected with the output terminal of described the second comparer 31, and the base stage of triode Q also connects the second comparer 31; The two ends of diode D4 are the emitter and collector of connecting triode Q respectively, and the emitter and collector of triode Q is also connected with analog signal output circuit 5 respectively.
Described analog signal output circuit 5 is comprised of the 3rd comparer 51, capacitor C 8, resistance R 11, and wherein, the positive input terminal of the 3rd comparer 51 is connected with the collector of triode Q, and negative input end is connected with the emitter of triode Q; The output terminal of the 3rd comparer 51 is connecting analog signal output port, resistance R 11, resistance R 12 respectively, and the other end of resistance R 11 connects power supply, ground connection after the other end connection LED light D3 of resistance R 12; One end of capacitor C 8 is connected with the 3rd comparer 51, other end ground connection.It plays the effect that sensor is indicated LED light D3, and, when sensor has signal, LED light D3 is bright, and prompting proximity transducer enters duty.
The utility model proximity transducer compared with common proximity transducer, in cost situation suitable for physical dimension, the detection of the utility model proximity transducer apart from 3-4 doubly to the detection distance of common sensor, thereby can realize remote detection; And, the utility model adopts analog signal output data, therefore, the utility model sensor is very suitable for for physical construction, installation dimension being had strict demand, being detected apart from larger again occasion, and is applicable to need analog signals to transmit the occasion of data.
Claims (5)
1. the remote analog output proximity transducer of enhancement mode, it establishes induction electrode and screen layer probe body in comprising, is characterized in that: described proximity transducer also comprises the high frequency LC oscillatory circuit, F/V change-over circuit, signal processing amplifying circuit and the analog signal output circuit that connect successively.
2. the remote analog output proximity transducer of enhancement mode according to claim 1, it is characterized in that: described high frequency LC oscillatory circuit is comprised of the first comparer, capacitor C 6, resistance R 13, R14, R15, R16, R17, R18, wherein, positive input terminal contact resistance R13, the R14 of the first comparer, negative input end contact resistance R16 and capacitor C 6, capacitor C 6 one end ground connection; One end contact resistance R16 of resistance R 17 and the common port of capacitor C 6, another termination power; One end contact resistance R16 of resistance R 18 and the common port of capacitor C 6, other end ground connection; One end of resistance R 15 connects the negative input end of the first comparer, and the other end connects the output terminal of the first comparer.
3. the remote analog output proximity transducer of enhancement mode according to claim 2, it is characterized in that: the output terminal of the first comparer of described high frequency LC oscillatory circuit connects F/V change-over circuit by a resistance R 19, and described F/V change-over circuit is comprised of the second comparer, capacitor C 7, adjustable resistance R21; Wherein, the positive input terminal contact resistance R19 of the second comparer; One end of capacitor C 7 is also connected with the positive input terminal of the second comparer, other end ground connection; The negative input end of the second comparer connects described adjustable resistance R21.
4. according to the remote analog output proximity transducer of the enhancement mode described in claim 1 or 3, it is characterized in that: the output terminal of the second comparer of described F/V change-over circuit connects signal and processes amplifying circuit, described signal is processed amplifying circuit and is comprised of triode Q and diode D4, wherein, the collector of triode Q is connected with the output terminal of described the second comparer, and the base stage of triode Q also connects the second comparer; The two ends of diode D4 are the emitter and collector of connecting triode Q respectively, and the emitter and collector of triode Q is also connected with analog signal output circuit respectively.
5. the remote analog output proximity transducer of enhancement mode according to claim 4, it is characterized in that: described analog signal output circuit is comprised of the 3rd comparer, capacitor C 8, resistance R 11, wherein, the positive input terminal of the 3rd comparer is connected with the collector of triode Q, and negative input end is connected with the emitter of triode Q; The output terminal of the 3rd comparer is connecting analog signal output port, resistance R 11, resistance R 12 respectively, and the other end of resistance R 11 connects power supply, ground connection after the other end connection LED light D3 of resistance R 12; One end of capacitor C 8 is connected with the 3rd comparer, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745683.4U CN203572500U (en) | 2013-11-21 | 2013-11-21 | Enhanced long distance analog quantity output proximity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745683.4U CN203572500U (en) | 2013-11-21 | 2013-11-21 | Enhanced long distance analog quantity output proximity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203572500U true CN203572500U (en) | 2014-04-30 |
Family
ID=50540228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745683.4U Expired - Fee Related CN203572500U (en) | 2013-11-21 | 2013-11-21 | Enhanced long distance analog quantity output proximity sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203572500U (en) |
-
2013
- 2013-11-21 CN CN201320745683.4U patent/CN203572500U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |