CN109683508A - A kind of band detects and the steering handwheel control system of the online self-test of BIT automatically - Google Patents
A kind of band detects and the steering handwheel control system of the online self-test of BIT automatically Download PDFInfo
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- CN109683508A CN109683508A CN201811139772.8A CN201811139772A CN109683508A CN 109683508 A CN109683508 A CN 109683508A CN 201811139772 A CN201811139772 A CN 201811139772A CN 109683508 A CN109683508 A CN 109683508A
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- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 70
- 238000005070 sampling Methods 0.000 claims description 26
- 230000005611 electricity Effects 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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Abstract
A kind of band detects and the steering handwheel control system of the online self-test of BIT automatically, it is made of the identical automatic detection of four groups of structures with online self testing circuit, pass through the first test voltage generator of setting, potentiometer power supply circuit and A/D sample circuit, for detecting the broken string situation of whole leads of steering handwheel potentiometer automatically, it short cut with each other situation between also detectable lead and report single-chip microcontroller, have the characteristics that detect comprehensive, high reliablity, practical；The online self testing circuit of BIT is set simultaneously, for online this control device of self-test working condition and do not influence the normal work of this control device, and will test result and report single-chip microcontroller, have the characteristics that detection real-time, reliability；The online self-test function of BIT is mainly used for the lower situation of signal frequency, especially steering signal, is conducive to greatly improve the multichannel of one of Ship Controling important component, the steering handwheel functional reliability of more redundancies, safety.
Description
Technical field
It is detected automatically the present invention relates to steering hand wheel control device technical field more particularly to a kind of band and BIT is online certainly
The steering handwheel control system of test.
Background technique
Steering handwheel module is one of Ship Controling important component, and reliability, safety will directly affect safety of ship
Reliable navigation, in order to improve the reliability of ship (especially naval vessel) auto navigator manipulation, naval vessel auto navigator at present
Steering handwheel module has generallyd use the design method of multichannel, more redundancies, and its multi-way contral circuit is arranged in steering
Centralized processing in control device except handwheel module, it is therefore desirable to be believed the multichannel potentiometer of steering handwheel module by lead
Number lead in the control device outside module, and the steering handwheel module potentiometer signal of multichannel, more redundancies by plug,
Lead is drawn, and the failures such as bad wire contacts, broken string and short circuit are unavoidably easy to produce.
Meanwhile the application demand being monitored to amplifier circuit itself working condition is also more and more, monitoring task is general
All over BIT self-test technology is used, i.e. additional increase tests circuit and test single-chip microcontroller, monitors the work shape to amplifier at any time
State.The self-test control circuit of amplifier circuit mainly has non-online and two kinds online, and non-online test circuit is being surveyed
It when trying amplifier operation state, needs to increase switching switch, cuts off the signal input of amplifier, while inputting self-test voltage letter
Number, if amplifier output signal is consistent with modelled signal, that is, determine that amplifier circuit is working properly, but increasing switching switch can not
It avoids increasing circuit link, and then the reliability of step-down amplifier circuit work, there is limitation；Online test circuit is being surveyed
When trying the working condition of amplifier, then it need to additionally increase input self-test voltage signal in the signal input part of amplifier, if putting
Big device output signal is consistent with modelled signal, that is, determines that amplifier circuit is working properly.This class testing will directly make in test
Working signal variation, easily causes amplifier operation state offset and influences normal amplifier operation；Two kinds of self-test control circuits
There is limitation.
To find such failure problems such as bad wire contacts, broken string and short circuit, real time on-line monitoring amplifier electricity in time
Road itself working condition develops a kind of device to solve the above problems and has become those skilled in the art's technology urgently to be resolved
Problem.
Summary of the invention
Technical problem solved by the invention is to provide a kind of band and detects automatically and the steering handwheel of the online self-test of BIT
Control system, to solve the disadvantage in above-mentioned background technique.
Technical problem solved by the invention is realized using following technical scheme:
A kind of band detect automatically with the steering handwheel control system of the online self-test of BIT, by the identical automatic detection of four groups of structures
It is formed with online self testing circuit, every group detection and online self testing circuit include input terminal, the generation of the first test voltage automatically
Device, the second test voltage generator, potentiometer power supply circuit, amplifier, A/D sampling control circuit, A/D sample circuit and output
End, input terminal one end are connect with steering handwheel potentiometer, and the input terminal other end is connect with potentiometer power supply circuit, potentiometer power supply
Circuit is connect with A/D sample circuit, amplifier, and the first test voltage generator is connect with potentiometer power supply circuit, the second test
Voltage generator is connect with amplifier, and A/D sampling control circuit is sent out with the first test voltage generator, the second test voltage respectively
Raw device and the connection of A/D sample circuit, A/D sample circuit are connect with output end, and output end exports the amplified letter of potentiometer signal
Number, input terminal includes first lead~third lead, a piece-root grafting ground wire；Specific structure is as follows:
First lead is connect with A/D sample circuit, the second capacitor of potentiometer power supply circuit and the 5th resistance respectively；
Second lead is electric with A/D sample circuit, first capacitor, the first resistor of the first test voltage generator and third respectively
Resistance, the 15th resistance connection of amplifier, first capacitor and ground line connect；
Third lead is connect with A/D sample circuit, the third capacitor of potentiometer power supply circuit and the 7th resistance respectively；
17th resistance of amplifier is connect with A/D sample circuit, the 8th capacitor one end, output end respectively, and the 8th capacitor is another
End is connected with ground line；First test voltage generator is connect by the 4th resistance with A/D sampling control circuit；Second test electricity
Pressure generator is connect by thirteenth resistor with A/D sampling control circuit.
In the present invention, the first test voltage generator includes first resistor~the 4th resistance, the first triode, the two or two
Pole pipe, first resistor one end are connect with 3rd resistor one end, and the first resistor other end and ground line connect, the 3rd resistor other end
Connect with second diode one end, the second diode other end is connect with first triode one end, the first triode other end with
The connection of 4th resistance, the first triode are also in parallel with second resistance.
In the present invention, the second test voltage generator include nine resistance~thirteenth resistor, third transistor, the 9th
Resistance one end is connect with the tenth resistance one end, eleventh resistor one end respectively, and the 9th resistance other end and ground line connect, and the tenth
The resistance other end is connect with third transistor one end；The third transistor other end is connect with thirteenth resistor, and third transistor is also
It is in parallel with twelfth resistor.
In the present invention, potentiometer power supply circuit includes the 5th resistance~the 8th resistance, the second capacitor ~ the 5th capacitor,
In, the 5th resistance one end is connect with second capacitor one end, and the second capacitor other end and ground line connect, the 5th resistance other end point
It is not connect with one end of the 4th capacitor, the 6th resistance, the 4th electric other end and ground line connect；7th resistance one end and third electricity
Hold one end connection, the third capacitor other end and ground line connect, the 7th resistance other end respectively with one end of the 5th capacitor, the 8th
Resistance connection, the 5th capacitor other end and ground line connect.
In the present invention, amplifier circuit includes 17 resistance of the 14th resistance~the, the 6th capacitor, the 7th capacitor, the
One amplifier, the first amplifier one end with the 15th resistance, the 16th resistance, the 17th resistance, the 6th capacitor, the 7th capacitor respectively
Connection is also connected with the 14th resistor coupled in parallel, the other end of the 16th resistance and ground line, the other end of the 6th capacitor and ground connection
Line connection, the other end and ground line of the 7th capacitor connect.
In the present invention, A/D sample circuit includes sampling integrated circuit, the 9th capacitor~the 17th capacitor, the 18th electricity
Resistance, voltage-stablizer.
In the present invention, it is provided with isolation circuit between A/D sampling control circuit and the 4th resistance, thirteenth resistor,
Isolation circuit is provided between A/D sampling control circuit and A/D sample circuit.
In the present invention, the second test voltage generator is connect by eleventh resistor with amplifier.
The utility model has the advantages that the present invention is made of the identical automatic detection of four groups of structures with online self testing circuit, pass through setting
First test voltage generator, potentiometer power supply circuit and A/D sample circuit, for detecting the complete of steering handwheel potentiometer automatically
The broken string situation of portion's lead, also can detect short cut with each other situation between lead and reports single-chip microcontroller, have detection comprehensive, reliable
Property high, practical feature；The online self testing circuit of BIT (i.e. the second test voltage generator and A/D sampling electricity are set simultaneously
Road), for online this control device of self-test working condition and do not influence the normal work of this control device, and will test knot
Fruit reports single-chip microcontroller, has the characteristics that detect real-time, reliability；The online self-test function of BIT be mainly used for signal frequency compared with
Low situation, especially steering signal are conducive to the behaviour for greatly improving the multichannel of one of Ship Controling important component, more redundancies
Steersman takes turns functional reliability, safety.
Detailed description of the invention
Fig. 1 is the functional block diagram of presently preferred embodiments of the present invention.
Fig. 2 is the circuit block diagram of presently preferred embodiments of the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to a kind of band of Fig. 1~2 detect automatically with the steering handwheel control system of the online self-test of BIT, by four groups of knots
The identical automatic detection of structure and online self testing circuit form, and every group detection and online self testing circuit include input terminal automatically
Input1, the first test voltage generator BIT Online1, the second test voltage generator BIT Online2, potentiometer power supply
Circuit Circuit I, amplifier Amplifier, A/D sampling control circuit A/D and level control, A/D sampling electricity
Road, output end Output1, the first triode V1, the second diode V2, third transistor V3, the electricity of first resistor R1~the 18th
Hinder R18, the capacitor C17 of first capacitor C1~the 17th, the first amplifier N1, A/D sampling integrated circuit N2, voltage-stablizer N3 and isolation electricity
Road, input terminal one end are connect with steering handwheel potentiometer, and the input terminal other end is connect with potentiometer power supply circuit, potentiometer power supply
Circuit is connect with A/D sample circuit, amplifier, and the first test voltage generator is connect with potentiometer power supply circuit, the second test
Voltage generator is connect with amplifier, and A/D sampling control circuit is sent out with the first test voltage generator, the second test voltage respectively
Raw device and the connection of A/D sample circuit, A/D sample circuit are connect with output end, and output end exports the amplified letter of potentiometer signal
Number, input terminal includes first lead P1-R1~third lead P1-R3, ground line P1GND, and specific structure is as follows:
First lead P1-R1 respectively with A/D sample circuit, the second capacitor C2 of potentiometer power supply circuit (Circuit I) and
Five resistance R5 connections；
Second lead P1-R2 respectively with A/D sample circuit, first capacitor C1, the first test voltage generator (BIT Online1)
First resistor R1 and 3rd resistor R3, amplifier (Amplifier) the 15th resistance R15 connection, first capacitor C1 with connect
Ground wire connection；
Third lead P1-R3 respectively with A/D sample circuit, the third capacitor C3 of potentiometer power supply circuit (Circuit I) and
Seven resistance R7 connections；
17th resistance R17 of amplifier (Amplifier) respectively with A/D sample circuit, the 8th one end capacitor C8, output end
(Output1) it connects, the 8th capacitor other end and ground line connect；First test voltage generator (BIT Online1) passes through
4th resistance R4 is connect with A/D sampling control circuit (A/D and level control)；Second test voltage generator (BIT
Online2) connect with A/D sampling control circuit by thirteenth resistor R13, A/D sampling control circuit and the 4th resistance R4,
Isolation circuit is provided between thirteenth resistor R13, the second test voltage generator (BIT Online2) passes through eleventh resistor
R11 is connect with amplifier (Amplifier), be provided between A/D sampling control circuit and the control terminal of A/D sample circuit every
From circuit；
First test voltage generator (BIT Online1) includes four resistance R4 of first resistor R1~the, the first triode V1,
Two diode V2, wherein the one end first resistor R1 is connect with the one end 3rd resistor R3, and the first resistor R1 other end and ground line connect
It connects, the 3rd resistor R3 other end is connect with second one end diode V2, the second diode V2 other end and the first triode V1 mono-
End connection, the first triode V1 other end are connect with the 4th resistance R4, and the first triode V1 is also in parallel with second resistance R2；
Second test voltage generator (BIT Online2) includes the 9th resistance R9~thirteenth resistor R13, third transistor
V3, wherein the 9th one end resistance R9 is connect with the tenth one end resistance R10, the one end eleventh resistor R11 respectively, the 9th resistance R9
The other end and ground line connect, and the tenth resistance R10 other end is connect with the one end third transistor V3；The third transistor V3 other end
It is connect with thirteenth resistor R13, third transistor V3 is also in parallel with twelfth resistor R12；
Potentiometer power supply circuit (Circuit I) includes the 5th resistance R8 of resistance R5~the 8th, the second capacitor of capacitor C2 ~ the 5th
C5, wherein the 5th one end resistance R5 is connect with second one end capacitor C2, and the second capacitor C2 other end and ground line connect, and the 5th
The resistance R5 other end is connect with the 6th resistance R6, the 4th one end capacitor C4 respectively, and the 4th capacitor C4 other end and ground line connect；
7th one end resistance R7 is connect with the one end third capacitor C3, and the third capacitor C3 other end and ground line connect, and the 7th resistance R7 is another
One end is connect with the 8th resistance R8, the 5th one end capacitor C5 respectively, and the 5th capacitor C5 other end and ground line connect；
Amplifier circuit (Amplifier) includes the 14th resistance R17 of resistance R14~the 17th, the 6th capacitor C6, the 7th capacitor
C7, the first amplifier N1, wherein the first amplifier N1 respectively with the 15th resistance R15, the 16th resistance R16, the 17th resistance R17,
6th capacitor C6, the 7th capacitor C7 one end connection, it is also in parallel with the 14th resistance R14, the other end of the 16th resistance R16 and
Ground line connection, the other end and ground line of the 6th capacitor C6 connect, and the other end and ground line of the 7th capacitor C7 connects；
A/D sample circuit (A/D) includes sampling integrated circuit N2, the 9th capacitor C17 of capacitor C9~the 17th, the 18th resistance
R18, voltage-stablizer N3 are designed by the typical application circuit of A/D sampling integrated circuit；
Working principle
1, signal broken string, short-circuit automatic detection circuit working principle
As shown in Fig. 2, signal broken string, short-circuit automatic detection function mainly by the first test voltage generator (BIT Online1),
Potentiometer power supply circuit (Circuit I) and A/D sample circuit are completed, and steering handwheel potentiometer resistance is 2K Ω, when steering hand
When taking turns the end first lead P1-R1 and the ground line P1GND normal of potentiometer, UP1-R1<9V；When only the end first lead P1-R1 is disconnected
It opens, UP1-R1=9V similarly, judges that the third end lead P1-R3 disconnects it is possible thereby to judge that the end first lead P1-R1 disconnects；
Real time on-line monitoring Uoutput1Voltage records Uoutput1Voltage value enables the first triode V1 be connected, and+5V voltage is through first
The input terminal of amplifier (Amplifier) is added in triode V1, the second diode V2,3rd resistor R3, because 3rd resistor R3 hinders
Value is very big (120K Ω), if the second end lead P1-R2 does not disconnect, because the second end lead P1-R2 earth impedance is smaller, application
Voltage drags down (U by partial pressure on the second end lead P1-R2P1-R2Variation < 0.1V), U at this timeoutput1Voltage value maintains initial value not
Become (variation < 0.1V), i.e. judgment method are as follows: the U of the first triode V1 conducting front and backoutput1Voltage value remain unchanged (variation <
0.1V), then judge that the second end lead P1-R2 does not disconnect, if the U of the first triode V1 conducting front and backoutput1Voltage value variation
0.2V ~ 0.3V then judges that the second end lead P1-R2 disconnects；
Even if the end ground lead P1GND disconnects, circuit still can be worked normally, unaffected, and being only possible to circuit zero-bit has less
Amount variation, therefore need not judge to be grounded whether P1GND disconnects；
Whether each lead of similar approach deducibility has short-circuit conditions.
2, the online self-test working principle of BIT
The online self-test function of BIT is mainly completed by the second test voltage generator (BIT Online2) and A/D sample circuit,
It is mainly used for the lower situation of signal frequency, especially steering signal, since steering signal is usually the letter for controlling steering engine rotation
Number, steering engine moves generally between (2.3 ° ~ 4/7 °)/S, and corresponding 1 ° of rudder angle corresponds to 0.25V voltage, as long as steering signal voltage is fast
Speed variation (several milliseconds ~ more than ten Milliseconds), becomes original numerical value again before steering engine starts to come about not yet, then measuring circuit is not
Steering engine control loop can be had an impact；
During no steering helm order when self-test, A/D sampling control circuit (A/D and level coutrol) quickly controls
Three triode V3 conducting ,+5V voltage rapidly joins the first amplifier N1 through third transistor V3, eleventh resistor R11, if UP1OIt surveys
Magnitude, by the value variation of setting, illustrates that this control device is working properly, otherwise can determine whether this before and after third transistor V3 conducting
Control device is faulty.
During having steering helm order when self-test, it is considered as excluding U when steering engine is normally come aboutP1OMeasurement variation width
Degree.
3, AD sample circuit working principle
With reference to AD sampled I C work data.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of band detects and the steering handwheel control system of the online self-test of BIT automatically, which is characterized in that by four groups of structure phases
Same automatic detection is formed with online self testing circuit, and every group detection and online self testing circuit include input terminal, first automatically
Test voltage generator, the second test voltage generator, potentiometer power supply circuit, amplifier, A/D sampling control circuit, A/D are adopted
Sample circuit and output end, input terminal one end are connect with steering handwheel potentiometer, and the input terminal other end and potentiometer power supply circuit connect
It connects, potentiometer power supply circuit is connect with A/D sample circuit, amplifier, the first test voltage generator and potentiometer power supply circuit
Connection, the second test voltage generator connect with amplifier, A/D sampling control circuit respectively with the first test voltage generator,
Second test voltage generator and the connection of A/D sample circuit, A/D sample circuit are connect with output end, and input terminal draws including first
Line~third lead, a piece-root grafting ground wire；Specific structure is as follows:
First lead is connect with A/D sample circuit, the second capacitor of potentiometer power supply circuit and the 5th resistance respectively；
Second lead is electric with A/D sample circuit, first capacitor, the first resistor of the first test voltage generator and third respectively
Resistance, the 15th resistance connection of amplifier, first capacitor and ground line connect；
Third lead is connect with A/D sample circuit, the third capacitor of potentiometer power supply circuit and the 7th resistance respectively；
17th resistance of amplifier is connect with A/D sample circuit, the 8th capacitor one end, output end respectively, and the 8th capacitor is another
End is connected with ground line；First test voltage generator is connect by the 4th resistance with A/D sampling control circuit；Second test electricity
Pressure generator is connect by thirteenth resistor with A/D sampling control circuit.
2. a kind of band according to claim 1 detects and the steering handwheel control system of the online self-test of BIT, spy automatically
Sign is that the first test voltage generator includes first resistor~the 4th resistance, the first triode, the second diode, the first electricity
Resistance one end is connect with 3rd resistor one end, and the first resistor other end and ground line connect, the 3rd resistor other end and the two or two pole
The connection of pipe one end, the second diode other end are connect with first triode one end, and the first triode other end and the 4th resistance connect
It connects, the first triode is also in parallel with second resistance.
3. a kind of band according to claim 1 detects and the steering handwheel control system of the online self-test of BIT, spy automatically
Sign is that the second test voltage generator includes nine resistance~thirteenth resistor, third transistor, the 9th resistance one end difference
Connect with the tenth resistance one end, eleventh resistor one end, the 9th resistance other end and ground line connect, the tenth resistance other end with
The connection of third transistor one end；The third transistor other end is connect with thirteenth resistor, third transistor also with twelfth resistor
It is in parallel.
4. a kind of band according to claim 1 detects and the steering handwheel control system of the online self-test of BIT, current potential automatically
Device power supply circuit includes the 5th resistance~the 8th resistance, the second capacitor ~ the 5th capacitor, the 5th resistance one end and second capacitor one end
Connection, the second capacitor other end and ground line connect, and the 5th resistance other end connects with one end of the 4th capacitor, the 6th resistance respectively
It connects, the 4th electric other end and ground line connect；7th resistance one end is connect with third capacitor one end, the third capacitor other end with connect
Ground wire connection, the 7th resistance other end are connect with one end of the 5th capacitor, the 8th resistance respectively, the 5th capacitor other end and ground connection
Line connection.
5. a kind of band according to claim 1 detects and the steering handwheel control system of the online self-test of BIT, spy automatically
Sign is that amplifier circuit includes the 14th resistance~the 17th resistance, the 6th capacitor, the 7th capacitor, the first amplifier, the first fortune
It puts and is connect respectively with one end of the 15th resistance, the 16th resistance, the 17th resistance, the 6th capacitor, the 7th capacitor, also with the tenth
Four resistor coupled in parallel, the other end and ground line of the 16th resistance connect, and the other end and ground line of the 6th capacitor connect, the 7th electricity
The other end and ground line of appearance connect.
6. a kind of band according to claim 1 detects and the steering handwheel control system of the online self-test of BIT, spy automatically
Sign is that A/D sample circuit includes sampling integrated circuit, the 9th capacitor~the 17th capacitor, the 18th resistance, voltage-stablizer.
7. a kind of band according to claim 1 detects and the steering handwheel control system of the online self-test of BIT, spy automatically
Sign is, is provided with isolation circuit between A/D sampling control circuit and the 4th resistance, thirteenth resistor, in A/D controlling of sampling
Isolation circuit is provided between circuit and A/D sample circuit.
8. a kind of band according to claim 1 detects and the steering handwheel control system of the online self-test of BIT, spy automatically
Sign is that the second test voltage generator is connect by eleventh resistor with amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139772.8A CN109683508B (en) | 2018-09-28 | 2018-09-28 | Steering hand wheel control system with automatic detection and BIT online self-test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139772.8A CN109683508B (en) | 2018-09-28 | 2018-09-28 | Steering hand wheel control system with automatic detection and BIT online self-test |
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| Publication Number | Publication Date |
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| CN109683508A true CN109683508A (en) | 2019-04-26 |
| CN109683508B CN109683508B (en) | 2024-01-02 |
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| CN201811139772.8A Active CN109683508B (en) | 2018-09-28 | 2018-09-28 | Steering hand wheel control system with automatic detection and BIT online self-test |
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Cited By (2)
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| CN111273191A (en) * | 2020-03-03 | 2020-06-12 | 中国船舶重工集团公司第七0七研究所九江分部 | RVDT/LVDT signal processing circuit and detection method |
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| CN111273191A (en) * | 2020-03-03 | 2020-06-12 | 中国船舶重工集团公司第七0七研究所九江分部 | RVDT/LVDT signal processing circuit and detection method |
| CN111273191B (en) * | 2020-03-03 | 2022-05-27 | 中国船舶重工集团公司第七0七研究所九江分部 | RVDT/LVDT signal processing circuit and detection method |
| CN113074770A (en) * | 2021-04-02 | 2021-07-06 | 广西玉柴机器股份有限公司 | Numerically-controlled hand wheel wire breakage test method |
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