CN200996836Y - Signal generater for measuring rotary angle - Google Patents
Signal generater for measuring rotary angle Download PDFInfo
- Publication number
- CN200996836Y CN200996836Y CN 200620114000 CN200620114000U CN200996836Y CN 200996836 Y CN200996836 Y CN 200996836Y CN 200620114000 CN200620114000 CN 200620114000 CN 200620114000 U CN200620114000 U CN 200620114000U CN 200996836 Y CN200996836 Y CN 200996836Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- infrared
- signal
- arc section
- infrared light
- 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 - Lifetime
Links
Abstract
A signal generator for measuring rotary angle is provided, which is characterized in that the utility model comprises a rotary shaft (11), one end of which is connected and rotates co-axially with a rotating object to be measured, another end is provided with a rotary disc (15); the outside of the rotary disc (15) is provided with a plurality of arc sections, the light reflection rates of which are different; each arc section forms a circular loop co-axial with the rotary shaft (11); at the inner circumference and the intersections of the arcs, magnetic steels are provided, the magnetisms of the adjacent magnetic steels are reverse; opposite to the circular loops on the rotary disc (15), an infrared emission tube (EM) and an infrared receiving tube (RE) are provided in relatively fixed way, which are respectively connected with the output end of the infrared light controller and the input end of the infrared signals; opposite to the circle where the magnetic steels are on the rotary disc (15), a first linear Hall sensor (M1) connected with the control circuit is fixedly provided; the light ray sent out by the infrared emission tube (EM) is received by the infrared receiving tube (RE) after being reflected by one of the arc section; the first linear Hall sensor (M1) generates the corresponding sensing signals depending upon the magnetic field of the relative position of the magnetic steels; the pulse-signal output end and the digital signal output end of the control circuit respectively output corresponding signals of the rotary angles.
Description
Technical field
The utility model relates to a kind of signal generation apparatus that is used for rotation angle measurement.
Background technology
The accurate measurement of the existing anglec of rotation is at industrial general use garden grating and linear grating.Its principle is on the circumference or rectilinear direction of glass, uses the method for photoetching to form some light transmission lines, and the Moire fringe by forming between the sound glass uses the change of the photoelectricity and the method identification anglec of rotation of sending pulse again.But this method technology and circuit are all complicated, the cost of manufacture height.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of signal generation apparatus that is used for rotation angle measurement is provided.
To achieve these goals, the utility model has designed a kind of signal generation apparatus that is used for rotation angle measurement, has rotating shaft, and the one end links to each other with tested rotating object and with the coaxial rotation of this object, its other end is provided with rotating disc; The lateral surface of rotating disc is provided with a plurality of arc sections, the light reflectivity difference of each arc section, and each arc section constitutes the annulus coaxial with rotating shaft; Be provided with magnet steel at the interior week of annulus, the intersection of each arc section, the magnetic of adjacent magnet steel is opposite; Be provided with infrared light power valve and infrared light receiving tube with the annulus relative fixed on the described rotating disc, it links to each other with the infrared signal input end with the infrared light control output terminal of control circuit respectively; Be provided with first linear hall sensor that links to each other with control circuit with the round relative fixed at magnet steel place on the described rotating disc; The light that the infrared light power valve sends is received by the infrared light receiving tube after above-mentioned arc section reflection; The magnetic field of the relative position between first linear hall sensor basis and described magnet steel produces corresponding transducing signal; The pulse signal output end of control circuit and digital signal output end are exported corresponding anglec of rotation value signal respectively.
Each arc section arc length unanimity that described light reflectivity is different, and each arc section has different solid color gray scales.
The color gray scale of each arc section on the described rotating disc changes successively step by step.
Compared with prior art, the utlity model has following good effect: (1) the utility model is distinguished the different arc section of color gray scale by optical instrument, by detecting the relative position of linear hall sensor and magnet steel; Measure the particular location in the arc section, draw the anglec of rotation at last.The circular arc hop count of forming annulus is many more, and its measuring accuracy is just high more.Control circuit can produce pulse signal and location digital information simultaneously, and pulse signal wherein is suitable for the use of conventional isolated plant, and as numerically-controlled machine main shaft, robot arm outer corner measurement etc., digital information is suitable for the processing of host computer.(2) in the utility model, the different color gray scale of each arc section employing makes the light reflectivity difference of each section, and is with low cost and effective.And the color gray scale of each arc section changes successively step by step, is beneficial to the raising efficiency of measurement.(3) circuit board in the utility model and rotating disc are parallel is oppositely arranged, and makes the first linear hall sensor M1, infrared light power valve EM and infrared light receiving tube RE stationkeeping.(4) control circuit in the utility model is by second sensor circuit and correction magnet steel, and the voltage fluctuation that counteracting supply voltage and interference cause has further improved measuring accuracy to the influence of measuring accuracy.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the circuit block diagram of the control circuit of the signal generation apparatus that is used for rotation angle measurement of the present utility model;
Fig. 2 is the structural representation that is used for the signal generation apparatus of rotation angle measurement of the present utility model;
Fig. 3 is the A face among Fig. 2;
Fig. 4 is the B face among Fig. 2;
Fig. 5 is the circuit theory diagrams of the control circuit of the signal generation apparatus that is used for rotation angle measurement of the present utility model;
Fig. 6 is the FB(flow block) of method of work of the central control unit of control circuit of the present utility model.
Embodiment
Embodiment 1,
See Fig. 2, the signal generation apparatus that is used for rotation angle measurement of present embodiment, rotating shaft 11 is arranged in the axle sleeve 13, and axle sleeve 13 two ends are provided with left bearing 20 and right bearing 14, and right bearing 14 and left bearing 20 are fixedly set in the set casing 12.
Rotating shaft 11 1 ends link to each other with tested rotating object and with the coaxial rotation of this object, the other end is provided with rotating disc 15.
See Fig. 3, the lateral surface of rotating disc 15 (being the A face) is provided with the arc section of 8 arc length unanimities, and each arc section has different solid color gray scales.From arc section 15-1, counterclockwise the color gray scale of each arc section is shoaled one by one by dark color among the figure; Each arc section constitutes the annulus coaxial with rotating shaft 11.Be provided with magnet steel at the interior week of annulus, the intersection of each arc section, the magnetic of adjacent magnet steel is opposite.
See Fig. 4, the first linear hall sensor M1, infrared light power valve EM and infrared light receiving tube RE are arranged on a side (being the B face) of circuit board 16, and all with described rotating disc 15 on annulus be oppositely arranged, circuit board 16 is fixed in the shell 17, and is oppositely arranged with rotating disc 15 is parallel.
Being provided with infrared light power valve EM with annulus relative fixed on the described rotating disc 15 links to each other with the infrared signal input end with the infrared light control output terminal of control circuit respectively with infrared light receiving tube RE; Be provided with the first linear hall sensor M1 that links to each other with control circuit with the round relative fixed at magnet steel place on the described rotating disc 15.
The light that infrared light power valve EM sends is received by infrared light receiving tube RE after above-mentioned arc section reflection, and generation and the corresponding photosignal of described Infrared intensity; The magnetic field of the relative position between first linear hall sensor M1 basis and described magnet steel produces corresponding transducing signal; Control circuit according to infrared light receiving tube RE receive light intensity draw the arc section at the reflection spot place of described Infrared, draw the particular location of reflection spot in this arc section of described Infrared simultaneously according to described transducing signal, measure rotation angle value at last; The pulse signal output end of control circuit and digital signal output end are exported corresponding anglec of rotation value information respectively.
Pulse signal and digital signal are exported from socket through output lead 18.
Described control circuit is arranged on the circuit board 16, sees Fig. 1, and it comprises central control unit 1, first sensor circuit 2, infrared signal radiating circuit 4 and infrared signal receiving circuit 5; The first linear hall sensor M1 connects the input end of first sensor circuit 2, the first transducing signal input end of the output termination central control unit 1 of first sensor circuit 2; The infrared light control output terminal of central control unit 1 connects the control input end of infrared signal radiating circuit 4, and the output terminal of infrared signal radiating circuit 4 is that the infrared light control output terminal of control circuit meets infrared light power valve EM; The input end of infrared signal receiving circuit 5 is the infrared signal input termination infrared light receiving tube RE of control circuit; The infrared signal input end of the output termination central control unit 1 of infrared signal receiving circuit 5; The pulse signal output end of control circuit and digital signal output end be central control unit 1 pulse signal output end and digital signal output end.
See Fig. 2, also be provided with second sensor circuit 3 on the C face of described circuit board 16 and proofread and correct magnet steel; Second sensor circuit 3 has second linear hall sensor M2 and the amplifying circuit; The second transducing signal input end of the output termination central control unit 1 of second sensor circuit 3; Control circuit is by second sensor circuit 3 and proofread and correct magnet steel and offset voltage fluctuation that supply voltage and interference the cause influence to measuring accuracy.The color gray scale of each arc section on the rotating disc 15 changes successively step by step.
Fig. 5 is the circuit theory diagrams of control circuit, and central control unit 1 is single-chip microcomputer IC1, can use 8 machine P87LPC767 chips with 4 road A/D conversion interface circuits.First sensor circuit 2 is the amplifying circuit of being made up of transport and placing device IC5; Second sensor circuit 3 is the amplifying circuit of being made up of transport and placing device IC4; Infrared signal radiating circuit 4 is the driving circuit of being made up of reverser IC6 and triode VT1; Infrared signal receiving circuit 5 is the driving circuit of being made up of transport and placing device IC7;
Transport and placing device IC4, IC5, IC7 can use high-operational amplifier OP07.First, second linear hall sensor M1, M2 are IC2, IC3, and it can adopt 6835 integrated devices.Reverser IC6 can use the CD4049 integrated circuit, and infrared emission and receiver pope EM, RE adopt the miniwatt infrared emission respectively and accept diode D1 and D2.The pulse signal output end of central control unit 1 and digital signal output end are respectively P0.1 mouth and the P1.0-1.7 mouth of single-chip microcomputer IC1.
Referring to Fig. 6, the method for work of the signal generation apparatus of above-mentioned rotation angle measurement comprises: rotating disc 15 is by rotating shaft 11 and the coaxial rotation of tested rotating object; The infrared light power valve EM of the central control unit 1 control infrared signal radiating circuit 4 of control circuit sends Infrared, Infrared is received by the infrared light receiving tube RE of infrared signal receiving circuit 5 after the reflection of the arc section on the rotating disc 15, and generation and the corresponding photosignal of described Infrared intensity; Central control unit 1 draws the arc section information at the reflection spot place of described Infrared according to described photosignal by tabling look-up; The magnetic field of the relative position between first linear hall sensor M1 basis and described magnet steel produces corresponding transducing signal; Control circuit draws the more specific location information in the above-mentioned arc section at reflection spot place of described Infrared by tabling look-up according to described transducing signal; Central control unit 1 draws the rotation angle value of tested rotating object according to described arc section information and more specific location information; The pulse signal output end of central control unit 1 and digital signal output end are exported corresponding anglec of rotation value information respectively.
The second linear hall sensor M2 of second sensor circuit 3 produces by the magnetic field of proofreading and correct magnet steel and proofreaies and correct transducing signal; Central control unit 1 is according to described correction transducing signal, the transducing signal that the described first linear hall sensor M1 produces proofreaied and correct, to offset voltage fluctuation that supply voltage and interference the cause influence to measuring accuracy.
See Fig. 6, carry out timing, the single-chip microcomputer IC1 simulating signal of self simulation input channel AD0 in the future carries out the A/D conversion and the A/D transformation result is temporary in the internal RAM unit; The simulating signal of self simulation input channel AD1 is carried out the A/D conversion in the future simultaneously, and the A/D transformation result is temporary in the internal RAM unit; The AD0 transformation result subtracts the AD1 transformation result, by tabling look-up, and particular location numerical information in the section that gets final product calibratedly.
Claims (6)
1, a kind of signal generation apparatus that is used for rotation angle measurement is characterized in that: have rotating shaft (11), the one end links to each other with tested rotating object and with the coaxial rotation of this object, its other end is provided with rotating disc (15); The lateral surface of rotating disc (15) is provided with a plurality of arc sections, the light reflectivity difference of each arc section, and each arc section constitutes and the coaxial annulus of rotating shaft (11); Be provided with magnet steel at the interior week of annulus, the intersection of each arc section, the magnetic of adjacent magnet steel is opposite; Be provided with infrared light power valve (EM) and infrared light receiving tube (RE) with the annulus relative fixed on the described rotating disc (15), it links to each other with the infrared signal input end with the infrared light control output terminal of control circuit respectively; Be provided with first linear hall sensor (M1) that links to each other with control circuit with the round relative fixed at magnet steel place on the described rotating disc (15); The light that infrared light power valve (EM) sends is received by infrared light receiving tube (RE) after above-mentioned arc section reflection; The magnetic field of the relative position between first linear hall sensor (M1) basis and described magnet steel produces corresponding transducing signal; The pulse signal output end of control circuit and digital signal output end are exported corresponding anglec of rotation value signal respectively.
2, the signal generation apparatus that is used for rotation angle measurement according to claim 1 is characterized in that: each arc section arc length unanimity that described light reflectivity is different, and each arc section has different solid color gray scales.
3, the signal generation apparatus that is used for rotation angle measurement according to claim 2 is characterized in that: the color gray scale of each arc section on the described rotating disc (15) changes successively step by step.
4, according to the described signal generation apparatus that is used for rotation angle measurement of one of claim 1-3, it is characterized in that: described first linear hall sensor (M1), infrared light power valve (EM) and infrared light receiving tube (RE) be arranged on a side of circuit board (16) and all with described rotating disc (15) on annulus be oppositely arranged, circuit board (16) and rotating disc (15) are parallel to be oppositely arranged.
5, the signal generation apparatus that is used for rotation angle measurement according to claim 4, it is characterized in that: described control circuit is arranged on the circuit board (16), and it comprises central control unit (1), first sensor circuit (2), infrared signal radiating circuit (4) and infrared signal receiving circuit (5); First linear hall sensor (M1) connects the input end of first sensor circuit (2), the first transducing signal input end of the output termination central control unit (1) of first sensor circuit (2); The infrared light control output terminal of central control unit (1) connects the control input end of infrared signal radiating circuit (4), and the output terminal of infrared signal radiating circuit (4) is that the infrared light control output terminal of control circuit connects outer light-emitting tube (EM); The input end of infrared signal receiving circuit (5) is the infrared signal input termination infrared light receiving tube (RE) of control circuit; The infrared signal input end of the output termination central control unit (1) of infrared signal receiving circuit (5); The pulse signal output end of control circuit and digital signal output end be central control unit (1) pulse signal output end and digital signal output end.
6, the signal generation apparatus that is used for rotation angle measurement according to claim 5 is characterized in that: also be provided with second sensor circuit (3) on the described circuit board (16) and proofread and correct magnet steel; Second sensor circuit (3) has second linear hall sensor (M2) and amplifying circuit; The second transducing signal input end of the output termination central control unit (1) of second sensor circuit (3); Control circuit is by second sensor circuit (3) and proofread and correct magnet steel and offset voltage fluctuation that supply voltage and interference the cause influence to measuring accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620114000 CN200996836Y (en) | 2006-05-17 | 2006-05-17 | Signal generater for measuring rotary angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620114000 CN200996836Y (en) | 2006-05-17 | 2006-05-17 | Signal generater for measuring rotary angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996836Y true CN200996836Y (en) | 2007-12-26 |
Family
ID=38995270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620114000 Expired - Lifetime CN200996836Y (en) | 2006-05-17 | 2006-05-17 | Signal generater for measuring rotary angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996836Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410629C (en) * | 2006-05-17 | 2008-08-13 | 江苏技术师范学院 | Signal generating method for rotating angle measurment and its operating method |
| CN102331230A (en) * | 2011-06-17 | 2012-01-25 | 唐臻宇 | Length or angle measuring device and circuit structure thereof |
| CN103983291A (en) * | 2014-05-26 | 2014-08-13 | 四川科奥达技术有限公司 | Photomagnetic coder and coding method thereof |
| CN104406542A (en) * | 2014-11-14 | 2015-03-11 | 广东欧珀移动通信有限公司 | Method, device and equipment for detecting rotary angle |
| CN107356274A (en) * | 2015-01-09 | 2017-11-17 | 杭州谷立电气技术有限公司 | The method that motor positioning is carried out using novel encoder structure |
| CN109724936A (en) * | 2019-02-21 | 2019-05-07 | 福州普贝斯智能科技有限公司 | A kind of water quality spectroanalysis instrument |
| CN114508121A (en) * | 2022-01-24 | 2022-05-17 | 中国电建集团海南电力设计研究院有限公司 | Desert photovoltaic support foundation stabilizing device |
-
2006
- 2006-05-17 CN CN 200620114000 patent/CN200996836Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410629C (en) * | 2006-05-17 | 2008-08-13 | 江苏技术师范学院 | Signal generating method for rotating angle measurment and its operating method |
| CN102331230A (en) * | 2011-06-17 | 2012-01-25 | 唐臻宇 | Length or angle measuring device and circuit structure thereof |
| CN102331230B (en) * | 2011-06-17 | 2013-07-10 | 唐臻宇 | Length or angle measuring device and circuit structure thereof |
| CN103983291A (en) * | 2014-05-26 | 2014-08-13 | 四川科奥达技术有限公司 | Photomagnetic coder and coding method thereof |
| CN103983291B (en) * | 2014-05-26 | 2017-04-12 | 四川科奥达技术有限公司 | Coding method of photomagnetic coder |
| CN104406542A (en) * | 2014-11-14 | 2015-03-11 | 广东欧珀移动通信有限公司 | Method, device and equipment for detecting rotary angle |
| CN104406542B (en) * | 2014-11-14 | 2017-07-14 | 广东欧珀移动通信有限公司 | Rotation angle detecting method, device and equipment |
| CN107356274A (en) * | 2015-01-09 | 2017-11-17 | 杭州谷立电气技术有限公司 | The method that motor positioning is carried out using novel encoder structure |
| CN107356274B (en) * | 2015-01-09 | 2019-11-05 | 杭州谷立电气技术有限公司 | The method for carrying out motor positioning using coder structure |
| CN109724936A (en) * | 2019-02-21 | 2019-05-07 | 福州普贝斯智能科技有限公司 | A kind of water quality spectroanalysis instrument |
| CN114508121A (en) * | 2022-01-24 | 2022-05-17 | 中国电建集团海南电力设计研究院有限公司 | Desert photovoltaic support foundation stabilizing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100410629C (en) | Signal generating method for rotating angle measurment and its operating method | |
| CN200996836Y (en) | Signal generater for measuring rotary angle | |
| CN103983290B (en) | Compound absolute value encoder | |
| CN102165285B (en) | Multiturn rotary encoder | |
| CN103162624B (en) | A kind of digital absolute position, displacement detection system and its implementation | |
| CN103545990A (en) | Motor closed-loop feedback device | |
| CN101829823B (en) | Electrode wire diameter on-line automatic detection and compensation system during linear cutting | |
| CN102735866A (en) | Photoelectric counter pulse-based method for measuring rotation speed difference of two shafts | |
| CN101629861B (en) | Torque rotary speed sensor | |
| CN103075953B (en) | A kind of piston ring groove circular runout checkout gear | |
| CN105486213B (en) | A kind of number shows ruler and its measuring method | |
| JP2012145359A (en) | Encoder signal processor | |
| CN206496726U (en) | Absolute position measuring device and Medical Devices | |
| CN206583466U (en) | High speed and super precision machine tool chief axis magnetic induction absolute value encoder and its measurement gear | |
| CN201188006Y (en) | Readout apparatus for counter | |
| CN101982736A (en) | Code disk of electro-optic rotary encoder | |
| CN109990823A (en) | For detecting the detection device and detection method of photoelectric encoder precision | |
| CN109855661A (en) | A kind of incremental encoder signal processing method and system | |
| CN203274770U (en) | Integrated encoder for rotor location detection of motor and valve location stroke detection of valve | |
| CN102788844B (en) | Automatically ultrasonic detection system for automatically correcting crack of bend pipe | |
| CN108098120B (en) | Method for evaluating stability of welding wire feeding speed | |
| CN201811746U (en) | Rotary angle sensor | |
| CN108195293A (en) | A kind of digital displacement transducer and its displacement measurement method | |
| CN101876559B (en) | Position detecting device and signal processing device and method thereof | |
| CN201844844U (en) | Encoding board of photoelectrical rotary encoder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080813 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |