CN2249453Y - Hall electronic potentiometer - Google Patents
Hall electronic potentiometer Download PDFInfo
- Publication number
- CN2249453Y CN2249453Y CN95234403.3U CN95234403U CN2249453Y CN 2249453 Y CN2249453 Y CN 2249453Y CN 95234403 U CN95234403 U CN 95234403U CN 2249453 Y CN2249453 Y CN 2249453Y
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- China
- Prior art keywords
- resistance
- hall
- amplifier
- connect
- output
- Prior art date
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- Expired - Fee Related
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a Hall electronic potentiometer which is composed of a Hall line integrated circuit (1), a magnet (2), a power supply (3), and a signal processing circuit (4). The utility model is characterized in that the power supply (3) adopts a positive and negative physical power supply; the power supply (3) is respectively connected with the Hall line integrated circuit (1) and the signal processing circuit (4); the Hall line integrated circuit (1) is also connected with the signal processing circuit (4). The potentiometer has the advantages of long service life and high precision; the utility model is most suitable for replacing the potentiometer as an angle sensor in the automatic control system; the utility model has wide application in the aspects of the tension automatic control, the control of the angle a camera and the angle displacement, the automatic detection of the angle displacement and the line displacement, the automatic control of the electric machine, etc.
Description
The utility model provides a kind of Hall electronic potentiometer, belongs to non-contact active electronic type potentiometer field.
In automatic control system, because the potentiometer as angular transducer is in reciprocal rotary state about low-angle at work always, the contact of potentiometer constantly contacts sliding friction with resistive element, resistive element is very fast to be caused potentiometer resistance to change by abrasion, precise decreasing, the lost of life, this is fatal weakness to requiring high control precision, high stability, high reliability in the robot control system(RCS).Also have in the robot control system(RCS) of equipment component at present, adopted the non-contact point potentiometer of development voluntarily that is useful for this device systems, with regard to sensing mode, have photoelectric sensing, electromagnetic sensing is arranged, hall sensing is arranged, their precision, the linearity, back and forth aspect such as location and temperature stability needs further improvement.
The purpose of this utility model provides a kind of employing is handled the signal of telecommunication of Hall linear integrated circuit by magnetic field induction through signal processing circuit method, and the life-span is long, precision is high, stable and reliable for performance, contactless electron formula potentiometer that the linearity is high.
The purpose of this utility model is achieved in that
Described Hall electronic potentiometer, magnet 2, power supply 3 and signal processing circuit 4 by Hall linear integrated circuit 1, magnetic flux density linear change are formed, the signal of telecommunication of Hall linear integrated circuit 1 output is linear change with the variation in angular displacement of itself and magnet 2, power supply 3 adopts negative and positive dual power, connect with Hall linear integrated circuit 1 and signal processing circuit 4 respectively, Hall linear integrated circuit 1 also connects with signal processing circuit 4.
Described Hall electronic potentiometer, signal processing circuit 4 is by amplifier A
1And A
2, variable resistor W
1～3, resistance R
1～13, capacitor C
1And C
2Form amplifier A
1Inverting input respectively through resistance R
5Connect its output, through capacitor C
1Ground connection and through resistance R
3Connect by adjustable resistance W
1And resistance R
1The bleeder circuit of forming, wherein resistance R
1Other end ground connection, adjustable resistance W
1The output of another termination Hall linear integrated circuit 1, amplifier A
1In-phase input end respectively through resistance R
4Ground connection and through variable resistor W
2Connect positive supply, amplifier A
1Output through resistance R
7Meet amplifier A
2Inverting input, amplifier A
2Inverting input also respectively through resistance R
11Connect its output, through capacitor C
2Ground connection and through resistance R
8Meet variable resistor W
3, variable resistor W
3In addition two ends ground connection and through resistance R respectively
9Connect negative supply, amplifier A
2In-phase input end through resistance R
10Ground connection, its output is respectively through resistance R
12Ground connection and through resistance R
13Connect positive supply, earth terminal, amplifier A
2Output and resistance R
13Connect three terminals that positive power source terminal is this potentiometer.
The utility model compared with prior art, adopt the magnet of Hall linear integrated circuit and magnetic flux density linear change, make angular displacement that the output signal of telecommunication of Hall linear integrated circuit produces with itself and magnet and linear change, this output signal is again through the processing of signal processing circuit, make that whole potentiometer precision height, linearity error are little, it is strong in the ability of disturbing to resist, do not have friction and the life-span long.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
In theory diagram shown in Figure 1, power supply 3 adopts negative and positive dual power, connect power supply with Hall linear integrated circuit 1 and signal processing circuit 4 respectively, when the magnet 2 of Hall linear integrated circuit 1 and magnetic flux density linear change produced angular displacement, Hall linear integrated circuit 1 was exported to signal processing circuit with regard to the signal of telecommunication that the linear change with angular displacement is arranged and is handled.
In circuit theory diagrams shown in Figure 2, the Hall linear integrated circuit is adopted 3503 ready-made model integrated packages, comprises pressurizer B, magnet-sensitive element X and amplifier A, and signal processing circuit is by comparison amplifier A
1With ratio adder operational amplifier A
2, variable resistor W
1～3, resistance R
1～13, capacitor C
1And C
2Form.The voltage signal that magnet-sensitive element X responds to when producing angular displacement with magnet amplifies through amplifier A, again through variable resistor W
1, resistance R
1After the bleeder circuit dividing potential drop of forming, through resistance R
3Send into comparison amplifier A
1Inverting input, comparison amplifier A
1Inverting input also respectively through capacitor C
1Ground connection and through resistance R
5Connect its output, comparison amplifier A
1In-phase input end respectively through resistance R
4Ground connection and through variable resistor W
2Connect positive supply, this positive voltage is used for the adjustment of Hall electronic potentiometer zero potential.Signal is through comparison amplifier A
1Amplify anti-phase after resistance R
7Send into ratio adder operational amplifier A
2Inverting input, ratio adder operational amplifier A simultaneously
2Inverting input also respectively through capacitor C
2Ground connection, through resistance R
11Connect its output and successively through resistance R
8, adjustable resistance W
3And resistance R
9Connect negative supply, adjustable resistance W
3Other end ground connection, this negative voltage is used to adjust the basic point current potential of Hall electronic potentiometer, its in-phase input end is through resistance R
10Ground connection.Ratio adder operational amplifier A
2The added two kinds of voltages of its inverting input are carried out the also anti-phase back of ratio add operation from output output CONTROLLED POTENTIAL, and its output is also through resistance R
13Connect positive supply.Earth terminal, ratio adder operational amplifier A
2Output and resistance R
13Connect three terminals that positive power source terminal is this potentiometer, wherein except that earth terminal, two ends can connect the diode D buffer action that electrifies according to actual needs respectively in addition.
In signal processing circuit, adjustable resistance W
1Be used to adjust the range of Hall electronic potentiometer, W
2Be used for the zeroing of Hall electronic potentiometer, W
3Be used for the basic point current potential adjustment of Hall electronic potentiometer.
Claims (2)
1, a kind of Hall electronic potentiometer, magnet (2), power supply (3) and signal processing circuit (4) by Hall linear integrated circuit (1), magnetic flux density linear change are formed, the signal of telecommunication of Hall linear integrated circuit (1) output is linear change with the variation in angular displacement of itself and magnet (2), it is characterized in that: power supply (3) adopts negative and positive dual power, connect with Hall linear integrated circuit (1) and signal processing circuit (4) respectively, Hall linear integrated circuit (1) also connects with signal processing circuit (4).
2, Hall electronic potentiometer as claimed in claim 1 is characterized in that: signal processing circuit (4) is by amplifier A
1And A
2But, power transformation W
1～3, resistance R
1-13, capacitor C
1And C
2Form amplifier A
1Inverting input respectively through resistance R
5Connect its output, through capacitor C
1Ground connection and through resistance R
3Connect by adjustable resistance W
1And resistance R
1The bleeder circuit of forming, wherein resistance R
1Other end ground connection, adjustable resistance W
1The output of another termination Hall linear integrated circuit (1), amplifier A
1In-phase input end respectively through resistance R
4Ground connection and through variable resistor W
2Connect positive supply, amplifier A
1Output through resistance R
7Meet amplifier A
2Inverting input, amplifier A
2Inverting input also respectively through resistance R
11Connect its output, through capacitor C
2Ground connection and through resistance R
8Meet variable resistor W
3, variable resistor W
3In addition two ends ground connection and through resistance R respectively
9Connect negative supply, amplifier A
2In-phase input end through resistance R
10Ground connection, its output is respectively through resistance R
12Ground connection and through resistance R
13Connect positive supply, earth terminal, amplifier A
2Output and resistance R
13Connect three terminals that positive power source terminal is this potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95234403.3U CN2249453Y (en) | 1995-07-21 | 1995-07-21 | Hall electronic potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95234403.3U CN2249453Y (en) | 1995-07-21 | 1995-07-21 | Hall electronic potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2249453Y true CN2249453Y (en) | 1997-03-12 |
Family
ID=33878341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95234403.3U Expired - Fee Related CN2249453Y (en) | 1995-07-21 | 1995-07-21 | Hall electronic potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2249453Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242351A (en) * | 2019-05-30 | 2019-09-17 | 上海工程技术大学 | A kind of tunnel structure rotational angle of joint displacement sensing device |
-
1995
- 1995-07-21 CN CN95234403.3U patent/CN2249453Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242351A (en) * | 2019-05-30 | 2019-09-17 | 上海工程技术大学 | A kind of tunnel structure rotational angle of joint displacement sensing device |
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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 |