CN1056163A - Multifunctional shaft angle encode device - Google Patents
Multifunctional shaft angle encode device Download PDFInfo
- Publication number
- CN1056163A CN1056163A CN 90105651 CN90105651A CN1056163A CN 1056163 A CN1056163 A CN 1056163A CN 90105651 CN90105651 CN 90105651 CN 90105651 A CN90105651 A CN 90105651A CN 1056163 A CN1056163 A CN 1056163A
- Authority
- CN
- China
- Prior art keywords
- angle measurement
- signal
- angle
- chip microcomputer
- sorter
- 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.)
- Pending
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A kind of multifunctional shaft angle encode device, it comprises binary channels angle measurement element, absolute value generator and digital indicator etc.Its principal character is to replace data processor with Single Chip Microcomputer (SCM) system.The intelligent degree height of this shaft-position encoder is convenient to carry out the zeroing, error correction of optional position etc., measuring accuracy height, good reliability, no zero drift.Have angle measurement and speed measuring function, and volume is little, functional price is than high, and is easy to use.Can be used as angle one digital conversion device and independently angle measurement display device in the computer control system, be widely used in fields such as fire control system, numerically-controlled machine, high precision dividing head and astronomical surveing, have the characteristic of one-machine-multi-function.
Description
The present invention relates to a kind of multifunctional shaft angle encode device, particularly a kind of multifunctional shaft angle encode device of pressing amplitude coding.
The existing shaft-position encoder of pressing amplitude coding, mainly relatively sorter, A/D converter, data processor, digital indicator, output interface and guidance panel are formed by binary channels angle measurement element, phase-sensitive demodulator, absolute value generator, signal.Shaft angle is transformed into the correspondent voltage signal through binary channels angle measurement element, phase-sensitive demodulator is the direct current signal with corresponding polarity with its rectification, taking absolute value and deliver to the A/D transducer after signal comparison sorting produces the corresponding digital amount, promptly obtains required shaft encode value after data processor processes.Though it has slewing rate height, static accuracy advantages of higher, also has following problem: (one) has bigger dynamic error, and temperature drift is arranged, thereby causes zero drift.(2) function singleness, complex structure, reliability is not high, and volume is big, the cost height.
The objective of the invention is to provide a kind of multifunctional shaft angle encode device, and it can overcome the problem that prior art exists effectively, good reliability, and intelligent degree height not only can be realized high precision angle-measuring, and has the function of degree of testing the speed concurrently.
The present invention be achieved in that it by binary channels angle measurement element, absolute value generator, signal relatively sorter, digital indicator, output interface and guidance panel etc. form, it is characterized in that between signal comparison sorter and digital indicator and output interface, being provided with a Single Chip Microcomputer (SCM) system; The symbol identifier of being made up of comparer, XOR gate and mirror zero device is set between binary channels angle measurement element and Single Chip Microcomputer (SCM) system; At absolute value generator and signal the sampling thief of being made up of sampling holder and multipole monostable chronotron is set between the sorter relatively; Described signal comparison sorter is a peak comparator.The output signal of binary channels angle measurement element is sent into symbol identifier and absolute value generator; After symbol identifier is tried to achieve signal polarity, symbol is delivered to Single Chip Microcomputer (SCM) system; Sampling thief is tried to achieve and delivered to the absolute value of signal by the absolute value generator; Sampling thief is to signal sampling, and sampled value is delivered to Single Chip Microcomputer (SCM) system after being handled by the signal comparison sorter that adopts peak comparator; Single Chip Microcomputer (SCM) system is delivered to digital indicator and output interface respectively with the shaft encode value.The reliability that prior art exists is not high, function singleness, main cause is to use components and parts too many, if will make shaft-position encoder increase some practical functions, as zeroing at an arbitrary position, round-off error, the exchange of angle system etc., the complicacy of used electronic circuit can increase greatly, and cost improves greatly thereupon, and reliability further descends.For addressing the above problem, and further develop the function of shaft-position encoder, it is very suitable using Single Chip Microcomputer (SCM) system.Because Single Chip Microcomputer (SCM) system is as long as add that with a slice single-chip microcomputer necessary several peripheral chips can constitute, its integrated level height, good reliability, function is strong, and price is low.A Single Chip Microcomputer (SCM) system only needs the Renminbi dozens of yuan, and a single card microcomputer is wanted 400～500 yuan at least.Therefore, the present invention adopts data processor and the A/D converter of Single Chip Microcomputer (SCM) system as shaft-position encoder, and is equipped with an amount of software, and the function of shaft-position encoder and reliability are improved greatly, and cost descends greatly.In addition, the available technology adopting phase-sensitive demodulator is asked for the amplitude and the polarity of signal, causes the dynamic lag and the temperature drift of signal, and this is the main cause that produces shaft-position encoder dynamic perfromance difference and zero drift.For addressing this problem, symbolization Discr. of the present invention is asked for the polarity of signal, to guarantee no dynamic lag and temperature drift, and behind the absolute value generator, add a sampling thief, 1～4 point of can sampling in each cycle of signal as requested is 400～1600 times/second corresponding to shaft-position encoder inversion frequency (when magnet excitation frequency is 400Hz).
Concrete structure of the present invention is provided by following examples and accompanying drawing thereof.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a structure general assembly drawing of the present invention.
Below in conjunction with accompanying drawing the concrete structure of the present invention and the course of work are further described.
Press Fig. 1, shown in Figure 2, relatively sorter 5, Single Chip Microcomputer (SCM) system 6, digital indicator 7, output interface 8, guidance panel 9, excitation power supply 10 and D.C. regulated power supply 11 are formed by binary channels angle measurement element 1, symbol identifier 2, absolute value generator 3, sampling thief 4, signal for it.Binary channels angle measurement element 1(110XFS007) function is that mechanical shaft angle θ is converted to the correspondent voltage signal, lays field winding on its rotor, and the angle of its axis and datum axis is θ; Lay two groups of orthogonal windings on the stator, its output voltage is respectively U
1, U
2(be called and know a little about), U
3, U
4(be called and be proficient in), and U
1=Umsin θ sin ω t, U
2=Umcos θ sin ω t, U
3=Umsin32 θ sin ω t, U
4=Umcos32 θ sin ω t, ω is the excitation voltage frequency of angle measurement element.Required excitation power supply 10 is by 400Hz alternating voltage source component IC
7With power discharging integrated block IC
8Form, fuse RX has been installed in output
2The required D.C. regulated power supply 11 of whole device is by transformer B, K switch, fuse RX
1, commutation diode D
11～D
64, filter capacitor C
11～C
62, regulator block IC
1～IC
6Form, have six tunnel outputs, be designated as ± E
1, ± E
2,+E
31,+E
32
The output of binary channels angle measurement element divides thick, smart two passages to deliver to corresponding change-over circuit respectively, and thick, smart two channel conversion circuits are identical.Below with know a little about for for example with the explanation: absolute value generator 3 is by a slice amplifier IC
9And resistance R
1～R
7, diode D
1, D
2Form, it is with U
1, U
2Be rectified into | U
1|, | U
2|; Sampling thief 4 is by sample/hold amplifier IC
10With the monostable chronotron IC of level Four
12, IC
13, some resistance R
8～R
11, capacitor C
1～C
5And a slice rejection gate IC
11Form, wherein IC
11, IC
12, IC
13In order to produce the 800Hz positive pulse, control IC
10In the sampling of the peak value place of sin ω t; Symbol identifier 2 is by mirror zero device 1/4IC
14(left side), XOR gate IC
15And comparer 1/4IC
14(the right) formed, wherein resistance R
12, R
13, R
16, R
17As current-limiting resistance, R
14, R
15As pull-up resistor, U
1, U
2Get the 400Hz square wave with sin ω t by mirror zero device, the above two respectively with latter's XOR, the polarity of sin θ, cos θ, be designated as S, C, sample/hold amplifier IC
10Two-way output send comparer to get | cos θ |-| sin θ | polarity.Be designated as | C|-|S|, S, C, | the Senior Three position that must know a little about behind the mutual XOR of C|-|S| three, send Single Chip Microcomputer (SCM) system 6; The IC of Single Chip Microcomputer (SCM) system 6 is sent in the output of sampling thief 4 after signal comparison sorter 5 is told size
18, the control signal of sorter 5 by | C|-|S| and phase inverter 1/6IC
17Produce.Be proficient in also and change by same mode, in Fig. 2 with know a little about 2,3,4,5 reduced representations of identical functions piece.
Single Chip Microcomputer (SCM) system 6 is by IC
18, IC
19, IC
20, IC
21Form, its task is that signal thick, two passages of essence is carried out the A/D conversion (by IC in ° scope of θ≤45
18Finish), send single-chip microcomputer IC with its output
19; IC
20In order to latch the high address, IC
21Deposit program and numerical table; IC
19Data to input are handled, obtaining thick, smart two passages respectively respectively is 11 binary angle-datas, get then know a little about high 5, be proficient in 11 make up, error correction, obtain 16 binary coded value of actual angle in 360 ° of scopes, the one tunnel send output interface 8(by latch IC
22Form with 25 core sockets), another road converts binary-coded decimal to and send digital indicator 7(to be made up of 6 charactrons).Guidance panel 9 is by two button K
1, K
2, four switch L
1～L
4And light emitting diode D
3Form, and and single-chip microcomputer IC
19Link to each other, be convenient to the enforcement of each function.
The present invention compared with prior art, its distinguishing feature is: 1. intelligent degree height, can carry out easily the zeroing of optional position, error correction etc. 2. can be with degree and two kinds of system of unit angles of display of mil and angular speed, display resolution is 0.01 ° or 0.1 mil, has angle measurement and speed measuring function, measurable angle range is 0～359.999 ° or 0～5999.99 mil, tests the speed The speed scope is 0～179.999 °/second or 0～2999.99 close bps. 3. can connect with computer easily and carry out data acquisition. If be equipped with mini-printer at output interface, can also carry out the dynamic data record. 4. certainty of measurement height, reliability and dynamic property are good, and the conversion frequency is up to more than 800 times/second, and do not have zero drift, repeats error≤0.1 mil, measures mean square error≤0.2 mil. 5. volume is little, and functional price is than high. 6. easy to use, meet the requirement of electromechanical integration.
The present invention not only can be used as the angle-to-digit conversion device in the computer control system, and can be used as independently angle measurement display unit, can be widely used in the technical fields such as fire control system, Digit Control Machine Tool, high precision dividing head and astronomical surveing, have the characteristic of multi-functional machine.
Claims (2)
1, a kind of multifunctional shaft angle encode device, it mainly comprises binary channels angle measurement element 1, absolute value generator 3, signal is sorter 5 relatively, digital indicator 7, output interface 8 and guidance panel 9 etc., it is characterized in that between signal comparison sorter 5 and digital indicator 7 and output interface 8, being provided with a Single Chip Microcomputer (SCM) system 6, between binary channels angle measurement element 1 and Single Chip Microcomputer (SCM) system 6, be provided with by comparer, the symbol identifier 2 that XOR gate and mirror zero device are formed relatively is provided with the sampling thief of being made up of sampling holder and multistage monostable chronotron 4 at absolute value generator 3 and signal between the sorter 5.
2, shaft-position encoder according to claim 1 is characterized in that signal compares sorter 5 and is peak comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105651 CN1056163A (en) | 1990-04-27 | 1990-04-27 | Multifunctional shaft angle encode device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105651 CN1056163A (en) | 1990-04-27 | 1990-04-27 | Multifunctional shaft angle encode device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1056163A true CN1056163A (en) | 1991-11-13 |
Family
ID=4879459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105651 Pending CN1056163A (en) | 1990-04-27 | 1990-04-27 | Multifunctional shaft angle encode device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056163A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132684A (en) * | 2014-05-30 | 2014-11-05 | 北京航天自动控制研究所 | Incremental grating encoder zero position signal detection method |
-
1990
- 1990-04-27 CN CN 90105651 patent/CN1056163A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132684A (en) * | 2014-05-30 | 2014-11-05 | 北京航天自动控制研究所 | Incremental grating encoder zero position signal detection method |
| CN104132684B (en) * | 2014-05-30 | 2016-06-01 | 北京航天自动控制研究所 | A kind of increment type grating encoder zero signal detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101210821A (en) | Coarse-fine data coupling method for double passage shaft angle conversion and measurement | |
| CN101281041B (en) | Single power supply CMOS integrated circuit autosyn / rotary transformer - digital conversion technique | |
| CN103557830B (en) | Angle measuring plate card compatible with various sensors | |
| CN109733643B (en) | Airplane attitude equipment testing system | |
| CN209719958U (en) | A kind of aircraft navigation attitude opening machine system test device | |
| US4268786A (en) | Position pickup for numerically controlled machine tools | |
| CN108180823A (en) | A kind of two-stage type magnetic absolute angle encoder | |
| CN1056163A (en) | Multifunctional shaft angle encode device | |
| CN2067467U (en) | Multifunction axial angle coder | |
| CA1192954A (en) | Device for measuring the phase angle between a sine wave signal and cyclic logic signal of the same frequency | |
| US3255448A (en) | Angular displacement phase shift encoder analog to digital converter | |
| CN207881630U (en) | A kind of two-stage type magnetic absolute angle encoder | |
| CN109855661A (en) | A kind of incremental encoder signal processing method and system | |
| CN108613684A (en) | Three floating plateform systems determine base framework angular accuracy test method | |
| CN208224799U (en) | Pointing control system | |
| CA1093212A (en) | Synchro-to-digital converter | |
| CN207832209U (en) | Grating scale and photoelectric encoder | |
| CN206989962U (en) | A kind of analog-to-digital circuit and the gyro compass comprising the circuit | |
| CN201555591U (en) | Direct-current sine-cosine azimuth indicator | |
| CN86100788A (en) | Corner-the data converter of multichannel synchrodyne | |
| JPH0125288Y2 (en) | ||
| CN107942121A (en) | A kind of transmitter | |
| CN2303289Y (en) | Instrument for calibrating pressure measuring meter | |
| CN216595270U (en) | General portable first workpiece testing device | |
| Liu | Design and implementation of the angle measurement system for position detecting of one launcher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |