CN108181601A - A kind of high-precision rotary transformer signal generating method - Google Patents
A kind of high-precision rotary transformer signal generating method Download PDFInfo
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- CN108181601A CN108181601A CN201810030067.8A CN201810030067A CN108181601A CN 108181601 A CN108181601 A CN 108181601A CN 201810030067 A CN201810030067 A CN 201810030067A CN 108181601 A CN108181601 A CN 108181601A
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- binary channels
- function generator
- signal
- rotary transformer
- precision
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The invention belongs to observation and control technology fields, are related to a kind of high-precision rotary transformer signal generating method.High-precision rotary transformer signal is realized by universal instrument binary channels function generator and high accuracy number multimeter, a channel in binary channels function generator meets the signal of rotary transformer sinusoidal component, another channel of binary channels function generator meets the signal of rotary transformer cosine component, the signal phase difference of two interchannels is 0, and digital multimeter is used to adjust output amplitude precision.Signal parameter range of the present invention is wide, and signal, which occurs, using rotary transformer material object usually only has single driving voltage and frequency.It is set using the wide scope of binary channels function generator, is greatly extended, and multiple output voltages and frequency can be flexibly set compared to more traditional its voltage range of method for generation in kind and frequency range；Method proposed by the present invention is simple and efficient, available for the equipment debugging of rotary transformer measurement angle, system emulation, equipment measurement and calibration.
Description
Technical field
The invention belongs to observation and control technology fields, are related to a kind of high-precision rotary transformer signal generating method.
Background technology
Rotary transformer angle sensor has good reliability and sufficiently high precision, in military and space flight, boat
Empty, navigation etc. has a wide range of applications.In Large-Scale Equipment ground experiment, it is frequently utilized that rotary transformer is passed as angle
Sensor obtains measured piece pivoting angle data.In system equipment debugging process or in system HWIL simulation, often need
Want a kind of high-precision rotary transformer signal.Traditional signal generating method usually has rotary transformer material object production method, sets
Count Special circuit board production method, design specialized instrument production method, but these types of method all there are it is different the shortcomings that, it is restricted
Making the factors such as technique influences its precision and the linearity, signal parameter range, manufacturing cycle and cost, the tractability of transmission of quantity value
Deng not ideal enough, especially in the development stages such as system debug and system emulation, need a kind of to replace true rotary transformer
Angular transducer generates the signal generating method that precision height, good reliability, signal parameter setting is flexible, is easily achieved.
Invention content
The purpose of the present invention is to propose to it is a kind of be easily achieved, precision is high, signal parameter range is wide, magnitude is easy to the rotation traced to the source
Change depressor signal and new method occurs.
The technical solution of the present invention is that high-precision rotary transformer signal is occurred by universal instrument binary channels function
Device and high accuracy number multimeter realize that a channel in binary channels function generator meets rotary transformer sine point
The signal of amount, another channel of binary channels function generator meet the signal of rotary transformer cosine component, two channels
Between signal phase difference for 0, for digital multimeter for adjusting output amplitude precision, signal generating method flow is as follows：
(1) binary channels function generator power switch is opened, and starts finish after the power is turned on；
(2) setting binary channels function generator first passage working frequency is excitation angular frequency；
(3) setting binary channels function generator first passage work initial phase is 0；
(4) setting binary channels function generator first passage work amplitude is the voltage magnitude Ve*cos (θ) of cosine component,
Wherein, Ve is driving voltage amplitude, and θ is rotation angle；
(5) voltage magnitude of output cosine component is measured using digital multimeter, is returned if amplitude precision does not reach requirement
Step (4) adjustment voltage magnitude is returned until precision meets the requirements；
(6) setting binary channels function generator second channel working frequency is excitation angular frequency；
(7) setting binary channels function generator second channel work initial phase is 0；
(8) setting binary channels function generator second channel work amplitude is the voltage magnitude Ve*sin (θ) of sinusoidal component,
Wherein, Ve is driving voltage amplitude, and θ is rotation angle；
(9) voltage magnitude of output sinusoidal component is measured using digital multimeter, is returned if amplitude precision does not reach requirement
Step (8) adjustment voltage magnitude is returned until precision meets the requirements；
(10) binary channels function generator binary channels Phase synchronization is set；
(11) output of setting binary channels function generator signal is enabled.
Binary channels function generator and high accuracy number multimeter are universal instruments, and function generator first sets electricity
Pressure amplitude value uses digital multimeter Adjustment precision afterwards.
One channel output amplitudes of binary channels function generator defer to the product of driving voltage and output angle cosine value
Constraint, the product that another channel output amplitudes defers to driving voltage and output angle sine value constrain.
Two channel signal frequencies of binary channels function generator are identical and equal to excitation source frequency, phase stringent synchronization
And phase difference is 0.
The present invention has the advantage that is with advantageous effect：The present invention is directed to traditional signals of rotating transformer method for generation not
Foot designs new signal and flow and method occurs, and raising is innovated at several aspects such as easy realization, high-precisions.
1st, the present invention is easily achieved, and used binary channels function generator is general basic quasi-instrument, convenient for finding, behaviour
It is simple to make method；
2nd, precision of the present invention is high, and binary channels function generator has the advantages of precision is high, stable and reliable in work in itself so that
The signals of rotating transformer generated using it also has the advantages that these, while present invention further propose that use digital versatile simultaneously
Table fine tuning output amplitude so that overall signal precision index greatly improves；
3rd, signal parameter range of the present invention is wide, and signal, which occurs, using rotary transformer material object usually only has single excitation electricity
Pressure and frequency.Set using the wide scope of binary channels function generator, compared to more traditional its voltage range of method for generation in kind and
Frequency range greatly extends, and can flexibly set multiple output voltages and frequency；
4th, magnitude of the present invention is easy to trace to the source, and the binary channels function generator and digital multimeter that the present invention uses belong to logical
With instrument, technical indicator is examined and determine every year according to measuring requirement, compared to the side for using traditional circuit board that signal occurs
Method has better magnitude tracing.
Method proposed by the present invention is simple and efficient, available for the equipment debugging of rotary transformer measurement angle, system emulation,
Equipment measurement and calibration.
Description of the drawings
Fig. 1 is signal generating method flow chart of the present invention.
Fig. 2 is the system connection figure of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings to the detailed description of the invention, high-precision rotary transformer signal generating method, signal is by bilateral
Road function generator and high accuracy number general-purpose table pack generate, and sinusoidal signal, function hair occur for one channel of function generator
Cosine signal occurs for another channel of raw device, and the signal of two interchannels has stringent Phase synchronization relationship, and digital multimeter is used
In adjusting output amplitude precision.Instrument is specifically occurred using general traditional binary channels function, with reference to the work of rotary transformer
Make principle, instrument, which occurs, using function generates the double of the advantages that reliable and stable, precision is high, phase difference can be set, magnitude can trace to the source
Channel signal according to method flow proposed by the invention, easily realizes signals of rotating transformer.Rotary transformer
Excitation channel voltage amplitude and frequency are constrained by formula 1, and cosine channel signal voltage amplitude and frequency are constrained by formula 2, sinusoidal
Channel signal voltage magnitude and frequency are constrained by formula 3.
V1=Ve*sin (ω t) formula 1
Vc=Ve*sin (ω t) * cos (θ) formula 2
Vs=Ve*sin (ω t) * sin (θ) formula 3
V1- driving voltages in formula, Vc- cosine channel voltages, Vs- sinusoidal channel voltages, Ve- driving voltage amplitudes；ω-swash
Encourage angular frequency, θ-rotation angle.Sinusoidal signal and cosine signal are same phase on the time phase of electricity, but amplitude is each other with turning
Make sine and cosine functions variation respectively in angle.
Flow such as attached drawing 1 occurs for signal, specific as follows：
(1) binary channels function generator power switch is opened, and starts finish after the power is turned on；
(2) setting function generator first passage working frequency is excitation angular frequency；
(3) setting function generator first passage work initial phase is 0；
(4) setting function generator first passage work amplitude is the voltage magnitude Ve*cos (θ) of cosine component；
(5) voltage magnitude of output cosine component is measured using digital multimeter, is returned if amplitude precision does not reach requirement
Step (4) adjustment voltage magnitude is returned until precision meets the requirements；
(6) setting function generator second channel working frequency is excitation angular frequency；
(7) setting function generator second channel work initial phase is 0；
(8) setting function generator second channel work amplitude is the voltage magnitude Ve*sin (θ) of sinusoidal component；
(9) voltage magnitude of output sinusoidal component is measured using digital multimeter, is returned if amplitude precision does not reach requirement
Step (8) adjustment voltage magnitude is returned until precision meets the requirements；
(10) function generator binary channels Phase synchronization is set；
(11) setting signal output is enabled.
Embodiment
Connection as shown in Figure 2.Binary channels function generator uses Agilent 33522A (U.S.), signals of rotating transformer electricity
Precision measure instrument is pressed to select Agilent 34410A (U.S.), angle acquisition card is North Atlantic Ocean 75C3 (U.S.).The letter of output
Number SIN sines, COS cosine and pumping signal SYNC are respectively connected to S1-S3, S2-S4 and RH-RL end of angle acquisition card.Excitation
Signal is realized using SYNC leading-out terminals.SYNC signal and CH1 signals are stringent synchronizations, are in addition made using instrument setting button
CH1 it is synchronouss with CH2, then be currently available three tunnels have synchronization signals of rotating transformer.CH1 and CH2 outputs are set
RMS voltage and frequency and phase, operation angle capture card test program observation angle numerical value.Output signal parameter is to rotate
30 ° of angle, driving source 7V amplitudes, frequency 2.5Khz, initial phase 0, sinusoidal voltage 3.5000V, cosinusoidal voltage 6.0622V are
Example, in actual use without being limited thereto group of signal parameter value.
Implementation steps are as follows：
(1) attachment Fig. 2 connects function generator output terminal, digital multimeter, angle acquisition card, confirms errorless rear to each
Instrument is powered；
(2) " FREQ " frequency keying is pressed, presses " CH1 " button, keys in " 2.5Khz " frequency values；
(3) " PHASE " phase button is pressed, presses " CH1 " button, keys in 0；
(4) " AMP " amplitude button is pressed, presses " CH1 " button, pressing " LOW " key entry " 0V ", pressing " HIGH " input
" 3.5000V " numerical value；
(5) pressing digital multimeter VOLT buttons enter voltage measurement mode, and the output of measurement functions generator channel 1 is equal to
Otherwise 3.5000V, error ± 0.0001V return to step (4) and continue to adjust output voltage values；
(6) " FREQ " frequency keying is pressed, presses " CH2 " button, keys in 2.5Khz frequency values；
(7) " PHASE " phase button is pressed, presses " CH2 " button, keys in 0；
(8) " AMP " amplitude button is pressed, presses " CH2 " button, 0V, pressing " HIGH " input are keyed in pressing " LOW "
" 6.0622V " numerical value；
(9) pressing digital multimeter VOLT buttons enter voltage measurement mode, and the output of measurement functions generator channel 2 is equal to
Otherwise 6.0622V, error ± 0.0001V return to step (8) and continue to adjust output voltage values；
(10) pressing " SYNC " button causes 2 Phase synchronization of channel 1 and channel；
(11) " ON " button, output angle signal are pressed；
(12) start angle acquisition card software, view angle angle value.
Claims (4)
1. a kind of high-precision rotary transformer signal generating method, it is characterised in that：High-precision rotary transformer signal is by general
Type instrument binary channels function generator and high accuracy number multimeter realize that a channel in binary channels function generator occurs
Meet the signal of rotary transformer sinusoidal component, another channel of binary channels function generator meets rotary transformer cosine
The signal of component, the signal phase difference of two interchannels is 0, and for adjusting output amplitude precision, signal occurs digital multimeter
Method flow is as follows：
(1) binary channels function generator power switch is opened, and starts finish after the power is turned on；
(2) setting binary channels function generator first passage working frequency is excitation angular frequency；
(3) setting binary channels function generator first passage work initial phase is 0；
(4) setting binary channels function generator first passage work amplitude is the voltage magnitude Ve*cos (θ) of cosine component,
In, Ve is driving voltage amplitude, and θ is rotation angle；
(5) voltage magnitude of output cosine component is measured using digital multimeter, if amplitude precision does not reach requirement return step
Suddenly (4) adjust voltage magnitude until precision meets the requirements；
(6) setting binary channels function generator second channel working frequency is excitation angular frequency；
(7) setting binary channels function generator second channel work initial phase is 0；
(8) setting binary channels function generator second channel work amplitude is the voltage magnitude Ve*sin (θ) of sinusoidal component,
In, Ve is driving voltage amplitude, and θ is rotation angle；
(9) voltage magnitude of output sinusoidal component is measured using digital multimeter, if amplitude precision does not reach requirement return step
Suddenly (8) adjust voltage magnitude until precision meets the requirements；
(10) binary channels function generator binary channels Phase synchronization is set；
(11) output of setting binary channels function generator signal is enabled.
2. a kind of high-precision rotary transformer signal generating method according to claim 1, it is characterised in that：Binary channels letter
Number generator and high accuracy number multimeter are universal instruments, and function generator first sets voltage magnitude, afterwards using number
Word multimeter Adjustment precision.
3. a kind of high-precision rotary transformer signal generating method according to claim 1, it is characterised in that：Binary channels letter
The product that one channel output amplitudes of number generator defer to driving voltage and output angle cosine value constrains, another channel is defeated
Go out the product constraint that amplitude defers to driving voltage and output angle sine value.
4. a kind of high-precision rotary transformer signal generating method according to claim 1, it is characterised in that：Binary channels letter
Two channel signal frequencies of number generator are identical and equal to source frequency is encouraged, and phase stringent synchronization and phase difference are 0.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810030067.8A CN108181601A (en) | 2018-01-12 | 2018-01-12 | A kind of high-precision rotary transformer signal generating method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810030067.8A CN108181601A (en) | 2018-01-12 | 2018-01-12 | A kind of high-precision rotary transformer signal generating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100550A (en) * | 2018-10-26 | 2018-12-28 | 伟创力电子技术(苏州)有限公司 | Signals of rotating transformer generator |
| CN111983269A (en) * | 2020-08-05 | 2020-11-24 | 南京华士电子科技有限公司 | Signal simulator for rotation speed sensor of traction converter of monorail vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035329A (en) * | 2014-07-02 | 2014-09-10 | 中国计量科学研究院 | Automatic vibration calibration system and calibration method |
| CN104932357A (en) * | 2015-05-29 | 2015-09-23 | 株洲易力达机电有限公司 | Analog rotary transformer device based on rotating speed control |
| CN105227185A (en) * | 2015-09-18 | 2016-01-06 | 河北汉光重工有限责任公司 | A kind of high-precision analog resolver output circuit |
-
2018
- 2018-01-12 CN CN201810030067.8A patent/CN108181601A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035329A (en) * | 2014-07-02 | 2014-09-10 | 中国计量科学研究院 | Automatic vibration calibration system and calibration method |
| CN104932357A (en) * | 2015-05-29 | 2015-09-23 | 株洲易力达机电有限公司 | Analog rotary transformer device based on rotating speed control |
| CN105227185A (en) * | 2015-09-18 | 2016-01-06 | 河北汉光重工有限责任公司 | A kind of high-precision analog resolver output circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100550A (en) * | 2018-10-26 | 2018-12-28 | 伟创力电子技术(苏州)有限公司 | Signals of rotating transformer generator |
| CN111983269A (en) * | 2020-08-05 | 2020-11-24 | 南京华士电子科技有限公司 | Signal simulator for rotation speed sensor of traction converter of monorail vehicle |
| CN111983269B (en) * | 2020-08-05 | 2023-02-10 | 南京华士电子科技有限公司 | Signal simulator for rotation speed sensor of traction converter of monorail vehicle |
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Application publication date: 20180619 |
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