CN109319167A - A kind of detection device for aircraft horizontal tail pressurized strut sensor module - Google Patents
A kind of detection device for aircraft horizontal tail pressurized strut sensor module Download PDFInfo
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- CN109319167A CN109319167A CN201811046043.8A CN201811046043A CN109319167A CN 109319167 A CN109319167 A CN 109319167A CN 201811046043 A CN201811046043 A CN 201811046043A CN 109319167 A CN109319167 A CN 109319167A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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Abstract
The present invention relates to a kind of detection devices for aircraft horizontal tail pressurized strut sensor module, including external resource, common test bottom plate and Signal transacting board analysis, tested displacement sensor is by matrix switch switching circuit by selection access measuring circuit, the DC voltage effective value of tested sensor is measured by alterating and direct current voltage conversion circuit and scaling circuit, excitation is provided by excitation power supply generation circuit for tested sensor, the coil resistance of tested sensor is measured by resistance measuring circuit, the coil voltage of tested sensor is measured by phase-sensitive demodulating circuits, by board interface by the resistance of measurement, voltage signal is transmitted to after data acquisition module and carries out display processing by host computer.The present invention can automatically detect the multinomial detection project of horizontal tail pressurized strut, shorten detection time, improve production work efficiency and product quality, and device integration is high, and it is convenient to carry.
Description
Technical field
The present invention relates to aircraft horizontal tail pressurized strut detection fields, specifically a kind of to sense for the pressurized strut of aircraft horizontal tail
The detection device of device assembly.
Background technique
Sensor inside horizontal tail pressurized strut is a kind of displacement sensor, and performance indicator specifically includes that the correctness of wiring；
It is displaced output voltage accuracy；The consumption electric current in each channel of sensor；The nonlinearity index in each channel；Polarity discriminating；Absolutely
Edge resistance, coil resistance；The indexs such as the degree of asymmetry of the output voltage in each channel.The sensor performance indexes is adopted at present
Manually mode is detected item by item, and existing main problem is: detection time is long, and the degree of automation is low, and manual measurement is easy
There is human error and missing inspection item, after especially needing to have measured all test points when calculating nonlinearity, manually
All test point data entry computers are handled, while being needed during product test due to test item difference
Test equipment is also more, is not easy to move.These problems cause production efficiency low, and product quality can not be controlled effectively.
Summary of the invention
It is a kind of for aircraft horizontal tail pressurized strut sensor module technical problem to be solved by the present invention lies in proposing
Detection device realizes the full-automatic detection of the sensor module, to reach the mesh for improving detection working efficiency and test accuracy
's.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of detection device for aircraft horizontal tail pressurized strut sensor module, including external resource, common test bottom plate,
Signal transacting board analysis, the external resource are connected to the common test bottom plate and carry out cable connection, power supply conversion, level conversion
And signal preliminary treatment, the Signal transacting board analysis are connected to the common test bottom plate for generating pumping signal, resistance
Measurement and phase demodulation.
Further, the external resource includes tested sensor, power module, data acquisition module and host computer, institute
It states power module and realizes that 220V turns the power supply conversion of ± 18V, provide power input for the common test bottom plate.
Further, the common test bottom plate includes that power interface, power-switching circuit, sensor interface, ratio are put
Big circuit, alterating and direct current voltage conversion circuit, board interface, IO driving circuit and matrix switch switching circuit；
The power interface is connected to the power-switching circuit turn after being connected to the power module input ± 18V power supply
+ 5V power supply is changed to as circuit power supply；
The sensor interface is connected to the tested sensor, and the tested sensor includes four displacement sensors,
Four road signal CHA1, CHA2, CHA3, CHA4 are exported respectively；
The signal CHA1 and CHA3 of the tested sensor are connected to the alterating and direct current voltage conversion circuit for AC signal
Switching to direct current signal, the alterating and direct current voltage conversion circuit is connected to the scaling circuit and realizes that signal amplitude can acquire,
The scaling circuit is connected to the board interface transmission voltage acquisition signal；
The board interface is connected to the IO driving circuit and connects for amplifying the driving capability of IO, the IO driving circuit
It is connected to the matrix switch switching circuit driving switch relay, test line is connected to corresponding detection circuit end by selection
Mouthful.
Further, the IO driving circuit will control signal code amplification using ULN2003 chip and directly drive relay, institute
The relay matrix that matrix switch switching circuit includes 16 relay composition 4*4 is stated, the input of matrix is connected to described tested
Four displacement transducer signal ends of sensor are arbitrarily switched the coil of the tested sensor by the upper computer selecting
Combination access circuit measures.
Further, the DC voltage converting circuit includes the first real available value direct current transducer of model AD637
With the second real available value direct current transducer；
The first real available value direct current transducer inputs the CHA1 signal port of the tested sensor, output end connection
There is the third operational amplifier of model LM258 to export the alternating voltage virtual value of tested port as output voltage follower
CHAU1；
The second real available value direct current transducer inputs the signal port of the CHA3 of the tested sensor, and output end connects
The four-operational amplifier for being connected to model LM258 exports the alternating voltage virtual value of tested port as output voltage follower
CHAU3；
The output end of the third operational amplifier is connected with 3 feet that the 5th operational amplifier is connected with after the 5th resistance,
The output end of the four-operational amplifier is connected with the 7th resistance eutral grounding after being connected with the 6th resistance, and the 7th resistance is separate
The one end on ground is connected to 2 feet of the 5th operational amplifier, and 3 feet of the 5th operational amplifier are connected with the 5th potentiometer
Final voltage sample value is exported after being connected to 1 foot of the 5th operational amplifier afterwards.
Further, the Signal transacting board analysis includes pumping signal source generating circuit, resistance measuring circuit, phase demodulation
Circuit；
The pumping signal source generating circuit is connected to the board interface square-wave signal and is converted into square wave
The excitation power supply of 36V/2400Hz provides excitation power supply signal to tested sensor by the sensor interface；
The resistance measuring circuit is connect two end signals of the tested sensor by the matrix switch switching circuit
Enter, completes the resistance measurement to sensor both ends；
AC signal is converted into direct current signal, completion pair by all-wave phase depending on rectification amplifier by the phase-sensitive demodulating circuits
The measurement of the coil output voltage of the tested sensor.
Further, the pumping signal source generating circuit includes the power operational amplifier of model LM675T, described
1 foot of power operational amplifier is connected with the square-wave signal that the 29th resistance is provided for inputting the board interface, described
3 feet and 5 feet of power operational amplifier are connected separately with+18V power supply and -18V power supply, 2 feet of the power operational amplifier
It is grounded after being connected with the 31st resistance, 2 feet of the power operational amplifier are connected with the fixing end of the 30th potentiometer
The fixing end of one end and adjustable side, the 30th potentiometer is connected to far from one end of 2 feet of the power operational amplifier
4 feet of the power operational amplifier export 36V/2400Hz excitation power supply, and 2 feet of the power operational amplifier input 2.5V
Reference power supply.
Further, the resistance measuring circuit include the 71st relay of the 6th operational amplifier, the described 70th
One relay is dpdt relay, and 6 feet and 3 feet of the 71st relay are connected respectively in the tested biography
CHA1, CHA2 signal port of sensor, 7 feet of the 71st relay connect the pumping signal source generating circuit and generate
36V/2400Hz excitation power supply, the 71st relay 2 feet ground connection, the 71st relay 5 feet connection
The 6th fortune is connected to after having 5V power supply, 4 feet of the 71st relay to be connected with the 27th resistance eutral grounding partial pressure
The foot of amplifier is calculated, 2 feet of the 6th operational amplifier are connected to 1 foot.
Further, the phase-sensitive demodulating circuits include input operational amplifier, all-wave phase-sensitive demodulator, output operation put
Big device, 2 feet of the input operational amplifier are connected with the 36th resistance access sensor signal, the input operation amplifier
2 feet of device are also connected with 1 foot that the input operational amplifier is connected to after the second potentiometer, the input operational amplifier
1 foot is connected with 1 foot and 5 feet that the all-wave phase-sensitive demodulator is connected to after the 7th resistance, 3 feet of the all-wave phase-sensitive demodulator
It is connected with the 35th resistance input 36V/2400Hz excitation power supply, is connected between 6 feet of the all-wave phase-sensitive demodulator, 7 feet
There are the both ends of the first potentiometric fixing end, the 8 feet company of the first potentiometric adjustable side and the all-wave phase-sensitive demodulator
It is connected to -18V power supply, 13 feet of the all-wave phase-sensitive demodulator are connected with+18V power supply, 9 feet of the all-wave phase-sensitive demodulator,
10 feet have been connected respectively thirteenth resistor, the 34th resistance, after the 34th resistance is connected with third potentiometer
It is connected to the thirteenth resistor and exports direct current signal, the direct current signal connection far from one end of the all-wave phase-sensitive demodulator
There is the 6th resistance eutral grounding, the direct current signal is connected with 6 feet that the output operational amplifier is connected to after the 14th resistance, institute
6 feet for stating output operational amplifier be connected be connected to after the 4th potentiometer the output operational amplifier the output of 7 feet it is last
All-wave phase demodulation signal.
The beneficial effects of the present invention are:
(1) the multinomial detection project of horizontal tail pressurized strut can automatically be detected, shortens detection time, improves production
Working efficiency and product quality；
(2) device integration is high, and it is convenient to carry.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is circuit block diagram of the invention；
Fig. 2 is combined-voltage conversion and computing circuit figure of the invention；
Fig. 3 is excitation power supply generation circuit figure of the invention；
Fig. 4 is resistance measuring circuit figure of the invention；
Fig. 5 is phase-sensitive demodulating circuits figure of the invention；
Fig. 6 is IO driving circuit of the invention；
Fig. 7 is matrix switch switching circuit of the 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, below it is right
The present invention is further described.
Circuit block diagram as shown in Figure 1:
A kind of detection device for aircraft horizontal tail pressurized strut sensor module, including external resource 1, common test bottom plate
2, Signal transacting board analysis 3, the external resource 1 are connected to the common test bottom plate 2 and carry out cable connection, power supply conversion, electricity
Flat turn is changed and signal preliminary treatment, the Signal transacting board analysis 3 be connected to the common test bottom plate 2 for generate excitation believe
Number, resistance measurement and phase demodulation.
Further, the external resource 1 include tested sensor 11, power module 12, data acquisition module 13 with it is upper
Position machine 14, the power module 12 realize that 220V turns the power supply conversion of ± 18V, it is defeated to provide power supply for the common test bottom plate 2
Enter.
Further, the common test bottom plate 2 include power interface 21, power-switching circuit 22, sensor interface 23,
Scaling circuit 24, alterating and direct current voltage conversion circuit 25, board interface 26, IO driving circuit 27 and matrix switch switching circuit
28；
The power interface 21 is connected to the power supply conversion electricity after being connected to 12 inputs of the power module ± 18V power supply
Road 22 is converted to+5V power supply as circuit power supply；
The sensor interface 23 is connected to the tested sensor 11, and the tested sensor 11 includes that four displacements pass
Sensor exports four road signal CHA1, CHA2, CHA3, CHA4 respectively；
The signal CHA1 and CHA3 of the tested sensor 11 are connected to the alterating and direct current voltage conversion circuit 25 and will exchange
Signal switchs to direct current signal, and the alterating and direct current voltage conversion circuit 25 is connected to the scaling circuit 24 and realizes signal amplitude
It can acquire, the scaling circuit 24 is connected to the board interface 26 and transmits voltage acquisition signal；
The board interface 26 is connected to the IO driving circuit 27 for amplifying the driving capability of IO, the IO driving electricity
Road 27 is connected to the 28 driving switch relay of matrix switch switching circuit, and test line is connected to corresponding detection by selection
Circuit port.
IO driving circuit figure as shown in FIG. 6 and matrix switch switching circuit figure shown in Fig. 7:
The IO driving circuit 27 includes current amplifier U17, U18, U19 of three model ULN2003 for that will control
Signal processed is converted into strong current drive signal and directly drives relay, and the matrix switch switching circuit 28 includes 16 relay compositions
The input of the relay matrix of 4*4, matrix is connected to four displacement transducer signal ends of the tested sensor 11, passes through institute
The selection of host computer 14 is stated to measure the coil arbitrary switch combination access circuit of the tested sensor 11.
Combined-voltage conversion and computing circuit figure as shown in Figure 2:
The DC voltage converting circuit 25 includes the first real available value direct current transducer U1 and second of model AD637
Real available value direct current transducer U2；
The first real available value direct current transducer U1 inputs the CHA1 signal port of the tested sensor 11, output end
The alternating current that the third operational amplifier U3 for being connected with model LM258 exports tested port as output voltage follower is pressed with
Valid value CHAU1；
The second real available value direct current transducer U2 inputs the signal port of the CHA3 of the tested sensor 11, output
The four-operational amplifier U4 that end is connected with model LM258 exports the alternating voltage of tested port as output voltage follower
Virtual value CHAU3；
The output end of the third operational amplifier U3 is connected with the 5th operational amplifier U5 after being connected with the 5th resistance R5
3 feet, the output end of the four-operational amplifier U4, which is connected with after the 6th resistance R6, is connected with the 7th resistance R7 ground connection, described
The one end of 7th resistance R7 remotely is connected to 2 feet of the 5th operational amplifier U5, and the 3 of the 5th operational amplifier U5
Foot exports final voltage sample value after being connected with 1 foot for being connected to the 5th operational amplifier U5 after the 5th potentiometer RW1.
The first real available value direct current transducer U1 and the second real available value direct current transducer U2 is used for sensor
Voltage effective value is obtained after AC signal partial pressure blocking, passes through third the operational amplifier U3 and four-operational amplifier U4
Voltage follow effect reduces output impedance, isolation front and back end signal, finally by the voltage effective value of sensor CHA1 route
The voltage effective value CHAU3 of CHAU1 and sensor CHA3 route are compared and enlarged using the 5th operational amplifier U5, are led to
It crosses the 5th potentiometer RW1 and amplifies multiple adjusting, obtain final signal IN1OUT, realize that voltage signal can acquire, together
Reason, which obtains IN2OUT, IN3OUT, IN4OUT signal and is input to the board interface 26 and is uploaded to host computer, carries out display reading.
Further, the Signal transacting board analysis 3 includes pumping signal source generating circuit 31, resistance measuring circuit 32, phase
Quick demodulator circuit 33；
The pumping signal source generating circuit 31 is connected to the board interface 26 and receives square-wave signal and convert square wave
At the excitation power supply of 36V/2400Hz, excitation power supply signal is provided to tested sensor 11 by the sensor interface 23；
The resistance measuring circuit 32 is by the matrix switch switching circuit 28 by the both ends of the tested sensor 11
Signal access, completes the resistance measurement to sensor both ends；
AC signal is converted into direct current signal by all-wave phase depending on rectification amplifier by the phase-sensitive demodulating circuits 33, is completed
Measurement to the coil output voltage of the tested sensor 11.
Excitation power supply generation circuit figure as shown in Figure 3:
Further, the pumping signal source generating circuit 31 includes the power operational amplifier U12 of model LM675T,
1 foot of the power operational amplifier U12 is connected with the side that the 29th resistance R29 is provided for inputting the board interface 26
Wave signal, 3 feet and 5 feet of the power operational amplifier U12 are connected separately with+18V power supply and -18V power supply, the power fortune
2 feet of calculation amplifier U12 are grounded after being connected with the 31st resistance R31, and 2 feet of the power operational amplifier U12 are connected with
One end and adjustable side of the fixing end of 30th potentiometer R30, the fixing end of the 30th potentiometer R30 is far from the power
One end of 2 feet of operational amplifier U12 is connected to the 4 feet output 36V/2400Hz excitation electricity of the power operational amplifier U12
2 feet in source, the power operational amplifier U12 input 2.5V reference power supply.
Resistance measuring circuit as shown in Figure 4:
The resistance measuring circuit 32 include the 71st relay K71 of the 6th operational amplifier U6, the described 71st
Relay K71 is dpdt relay, and 6 feet and 3 feet of the 71st relay K71 are connected respectively in the quilt
CHA1, CHA2 signal port of sensor 11 are surveyed, 7 feet of the 71st relay K71 connect the exciting signal source and produce
The 36V/2400Hz excitation power supply that raw circuit 31 generates, the 2 feet ground connection of the 71st relay K71, the described 71st
5 feet of relay K71 are connected with 5V power supply, and 4 feet of the 71st relay K71 are connected with the 27th resistance R27 and connect
The foot of the 6th operational amplifier U6 is connected to after ground partial pressure, 2 feet of the 6th operational amplifier U6 are connected to 1 foot.
The 27th resistance R27 resistance value is 1K, input voltage 5V, is followed by the described 20th by sensor both ends
It is grounded after seven resistance R27, voltage SR1 after voltage follower measurement divides is constituted by the 6th operational amplifier U6, that is, is obtained
Getting tested sensor resistance resistance value is SR1*1K.
Identically as foregoing circuit structure, by the selection index system of the 67th relay K67 by the CHA3 of sensor with
The access of the channel CHA4 obtains the branch pressure voltage of tested sensor by the voltage follow effect measurement of the 7th operational amplifier U7
DR1 acquires resistance.
Phase-sensitive demodulating circuits figure as shown in Figure 5:
The phase-sensitive demodulating circuits 33 include input operational amplifier U7A, all-wave phase-sensitive demodulator J1, output operation amplifier
Device U7B, 2 feet of the input operational amplifier U7A are connected with the 36th resistance R36 access sensor signal, the input
2 feet of operational amplifier U7A are also connected with 1 foot that the input operational amplifier U7A is connected to after the second potentiometer RP2, institute
1 foot for stating input operational amplifier U7A is connected with 1 foot and 5 that the all-wave phase-sensitive demodulator J1 is connected to after the 7th resistance R7
Foot, 3 feet of the all-wave phase-sensitive demodulator J1 are connected with the 35th resistance R35 input 36V/2400Hz excitation power supply, described
The both ends of the fixing end of the first potentiometer RP1, first potentiometer are connected between 6 feet of all-wave phase-sensitive demodulator J1,7 feet
8 feet of the adjustable side of RP1 and the all-wave phase-sensitive demodulator J1 are connected with -18V power supply, and the 13 of the all-wave phase-sensitive demodulator J1
Foot is connected with+18V power supply, and 9 feet, 10 feet of the all-wave phase-sensitive demodulator J1 have been connected respectively thirteenth resistor R13,
34 resistance R34s, the 34th resistance R34 are connected to the thirteenth resistor R13 after being connected with third potentiometer RP3
One end far from the all-wave phase-sensitive demodulator J1 exports direct current signal, and the direct current signal is connected with the 6th resistance C6 ground connection,
The direct current signal is connected with 6 feet that the output operational amplifier U7B is connected to after the 14th resistance R14, the output fortune
6 feet of calculation amplifier U7B are connected to the 7 feet output of the output operational amplifier U7B finally after being connected with the 4th potentiometer RP4
All-wave phase demodulation signal.
Front stage circuit is isolated simultaneously by the AC signal of shown input operational amplifier U7A amplification input, passes through institute
It states the second potentiometer RP2 and adjusts input amplification factor, AC signal is converted by direct current by the all-wave phase-sensitive demodulator J1
Output signal is amplified by the output operational amplifier U7B while the tested displacement biography of front stage circuit output is isolated by signal
The coil output voltage of sensor.
The present invention acquires voltage, the resistance value of aircraft pressurized strut displacement sensor by integrated equipment plate card, complete
Its full-automatic detection in pairs, integrated degree is high, improves production work efficiency and quality.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (9)
1. a kind of detection device for aircraft horizontal tail pressurized strut sensor module, it is characterised in that: including external resource (1),
Common test bottom plate (2), Signal transacting board analysis (3), the external resource (1) are connected to the common test bottom plate (2) and carry out
Cable connection, power supply conversion, level conversion and signal preliminary treatment, the Signal transacting board analysis (3) are connected to described public
Test bottom plate (2) is for generating pumping signal, resistance measurement and phase demodulation.
2. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 1, feature exist
In: the external resource (1) includes tested sensor (11), power module (12), data acquisition module (13) and host computer
(14), the power module (12) realizes that 220V turns the power supply conversion of ± 18V, provides power supply for the common test bottom plate (2)
Input.
3. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 2, feature exist
It include that power interface (21), power-switching circuit (22), sensor interface (23), ratio are put in: the common test bottom plate (2)
Big circuit (24), alterating and direct current voltage conversion circuit (25), board interface (26), IO driving circuit (27) and matrix switch switching electricity
Road (28)；
The power interface (21) is connected to the power supply conversion electricity after being connected to the power module (12) input ± 18V power supply
Road (22) is converted to+5V power supply as circuit power supply；
The sensor interface (23) is connected to the tested sensor (11), and the tested sensor (11) includes four displacements
Sensor exports four road signal CHA1, CHA2, CHA3, CHA4 respectively；
The signal CHA1 and CHA3 of the tested sensor (11) are connected to the alterating and direct current voltage conversion circuit (25) and will exchange
Signal switchs to direct current signal, and the alterating and direct current voltage conversion circuit (25) is connected to the scaling circuit (24) and realizes signal
Amplitude can acquire, and the scaling circuit (24) is connected to board interface (26) the transmission voltage acquisition signal；
The board interface (26) is connected to the IO driving circuit (27) for amplifying the driving capability of IO, the IO driving electricity
Road (27) is connected to matrix switch switching circuit (28) the driving switch relay, and test line is connected to corresponding by selection
Detection circuit port.
4. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 3, feature exist
In: the IO driving circuit (27) will control signal code amplification using ULN2003 chip and directly drive relay, the matrix switch
Switching circuit (28) includes the relay matrix of 16 relay composition 4*4, and the input of matrix is connected to the tested sensor
(11) coil of the tested sensor (11) is appointed by the host computer (14) selection in four displacement transducer signal ends
Meaning switching combining access circuit measures.
5. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 3, feature exist
In: the DC voltage converting circuit (25) includes the first real available value direct current transducer (U1) and second of model AD637
Real available value direct current transducer (U2)；
The first real available value direct current transducer (U1) inputs the CHA1 signal port of the tested sensor (11), output end
The third operational amplifier (U3) for being connected with model LM258 exports the alternating voltage of tested port as output voltage follower
Virtual value CHAU1；
The second real available value direct current transducer (U2) inputs the signal port of the CHA3 of the tested sensor (11), output
The four-operational amplifier (U4) that end is connected with model LM258 exports the alternating current of tested port as output voltage follower
It is pressed with valid value CHAU3；
The output end of the third operational amplifier (U3) is connected with the 5th operational amplifier after being connected with the 5th resistance (R5)
(U5) 3 feet, the output end of the four-operational amplifier (U4) are connected with the 7th resistance after being connected with the 6th resistance (R6)
(R7) it being grounded, the one end of the 7th resistance (R7) remotely is connected to 2 feet of the 5th operational amplifier (U5), and described the
3 feet of five operational amplifiers (U5) are connected with 1 foot that the 5th operational amplifier (U5) is connected to after the 5th potentiometer (RW1)
After export final voltage sample value.
6. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 3, feature exist
In: the Signal transacting board analysis (3) includes pumping signal source generating circuit (31), resistance measuring circuit (32), phase demodulation electricity
Road (33)；
The pumping signal source generating circuit (31) is connected to the board interface (26) and receives square-wave signal and convert square wave
At the excitation power supply of 36V/2400Hz, excitation power supply letter is provided to tested sensor (11) by the sensor interface (23)
Number；
The resistance measuring circuit (32) is by the matrix switch switching circuit (28) by the two of the tested sensor (11)
End signal access, completes the resistance measurement to sensor both ends；
AC signal is converted into direct current signal, completion pair by all-wave phase depending on rectification amplifier by the phase-sensitive demodulating circuits (33)
The measurement of the coil output voltage of the tested sensor (11).
7. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 6, feature exist
In: the pumping signal source generating circuit (31) includes the power operational amplifier (U12) of model LM675T, the power fortune
1 foot for calculating amplifier (U12) is connected with the 29th resistance (R29) for inputting the square wave letter that the board interface (26) provides
Number, 3 feet and 5 feet of the power operational amplifier (U12) are connected separately with+18V power supply and -18V power supply, the Power arithmetic
2 feet of amplifier (U12) are connected with the 31st resistance (R31) and are grounded afterwards, and 2 feet of the power operational amplifier (U12) connect
It is connected to one end and adjustable side of the fixing end of the 30th potentiometer (R30), the fixing end of the 30th potentiometer (R30) is separate
One end of 2 feet of the power operational amplifier (U12) is connected to the 4 feet output 36V/ of the power operational amplifier (U12)
2 feet of 2400Hz excitation power supply, the power operational amplifier (U12) input 2.5V reference power supply.
8. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 6, feature exist
In: the resistance measuring circuit (32) include the 71st relay (K71) of the 6th operational amplifier (U6), the described 71st
Relay (K71) is dpdt relay, and 6 feet and 3 feet of the 71st relay (K71) are connected respectively in institute
CHA1, CHA2 signal port of tested sensor (11) are stated, 7 feet of the 71st relay (K71) connect the excitation
The 36V/2400Hz excitation power supply that signal source generating circuit (31) generates, the 2 feet ground connection of the 71st relay (K71),
5 feet of the 71st relay (K71) are connected with 5V power supply, and 4 feet of the 71st relay (K71) are connected with
The foot of the 6th operational amplifier (U6), the 6th operational amplifier are connected to after 27 resistance (R27) ground connection partial pressure
(U6) 2 feet are connected to 1 foot.
9. a kind of detection device for aircraft horizontal tail pressurized strut sensor module according to claim 6, feature exist
It include that input operational amplifier (U7A), all-wave phase-sensitive demodulator (J1), output operation are put in: phase-sensitive demodulating circuits (33)
Big device (U7B), 2 feet of the input operational amplifier (U7A) are connected with the 36th resistance (R36) access sensor signal,
2 feet of the input operational amplifier (U7A) are connected to the input operational amplifier after being also connected with the second potentiometer (RP2)
(U7A) 1 foot, 1 foot of the input operational amplifier (U7A) are connected to the all-wave phase sensitivity after being connected with the 7th resistance (R7)
1 foot and 5 feet of demodulator (J1), 3 feet of the all-wave phase-sensitive demodulator (J1) are connected with the input of the 35th resistance (R35)
36V/2400Hz excitation power supply is connected with the first potentiometer (RP1) between 6 feet of the all-wave phase-sensitive demodulator (J1), 7 feet
The both ends of fixing end, 8 feet of the adjustable side of first potentiometer (RP1) and the all-wave phase-sensitive demodulator (J1) are connected with-
18V power supply, 13 feet of the all-wave phase-sensitive demodulator (J1) are connected with+18V power supply, and the 9 of the all-wave phase-sensitive demodulator (J1)
Foot, 10 feet have been connected respectively thirteenth resistor (R13), the 34th resistance (R34), the 34th resistance (R34)
The thirteenth resistor (R13) is connected to far from the all-wave phase-sensitive demodulator (J1) after being connected with third potentiometer (RP3)
One end exports direct current signal, and the direct current signal is connected with the 6th resistance (C6) ground connection, and the direct current signal is connected with the 14th
6 feet of the output operational amplifier (U7B) are connected to after resistance (R14), 6 feet of the output operational amplifier (U7B) connect
It is connected to and is connected to 7 feet of the output operational amplifier (U7B) after the 4th potentiometer (RP4) and exports last all-wave phase demodulation
Signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Inventor after: Kan Yan Inventor after: Wang Weiguo Inventor after: Yuan Dapeng Inventor after: Wang Hongtao Inventor after: Sun Tongming Inventor after: Fan Xin Inventor after: Yao Xucheng Inventor after: Liu Guo Inventor after: Zheng Yonglong Inventor after: Shan Yimeng Inventor after: Li Shanshan Inventor after: Zhou Yongjun Inventor after: Zhang Ziming Inventor before: Yao Xucheng Inventor before: Liu Guo Inventor before: Zheng Yonglong Inventor before: Li Shanshan Inventor before: Zhou Yongjun Inventor before: Zhang Ziming Inventor before: Wang Weiguo Inventor before: Wang Hongtao Inventor before: Sun Tongming |