CN109541363A - A kind of rocket engine release mechanism actuation module screening conversion device - Google Patents
A kind of rocket engine release mechanism actuation module screening conversion device Download PDFInfo
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- CN109541363A CN109541363A CN201811297025.7A CN201811297025A CN109541363A CN 109541363 A CN109541363 A CN 109541363A CN 201811297025 A CN201811297025 A CN 201811297025A CN 109541363 A CN109541363 A CN 109541363A
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- module
- voltage
- circuit
- actuation module
- delayer
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
Abstract
The present invention proposes a kind of rocket engine release mechanism actuation module screening conversion device, including box body, has front panel and rear panel on box body, is fixed with circuit module in box body；There is 8 groups of discharge cocks and operating switch on front panel, and be corresponding with status indicator lamp；Also there is 20V, 7V voltage switching push button and voltage status display area；There is alternating current 220V power switch, 220V power outlet and the cable interface connecting with actuation module on rear panel；It include two groups of AC/DC power modules, condition indication circuit module, voltage selection instruction measuring circuit module and time delay conversion circuit module in circuit module.The present invention is applied in the screening tests such as vibration, temperature, the electromagnetic compatibility of actuation module, the conversion device can correctly control actuation module and carry out state conversion, the state for indicating component, accurately show that it converts voltage and easy to connect, reliable with actuation module, fully meet the requirement of actuation module screening test.
Description
Technical field
The present invention relates to rocket engine release mechanism the field of test technology, specially a kind of rocket engine release mechanism
Actuation module screens conversion device.
Background technique
Release mechanism is the highly reliable valving of one kind installed on rocket engine, be typically mounted on electric squib and
On channel between gunpowder, can according to need can be assuredly shut off or connect solid propellant rocket biography fire, propagation of explosion it is logical
Road.
Release mechanism has two states, i.e. safety position and working condition.Release mechanism is generally in safety position, this
When safety position switch be in normally off, working condition switch be in normally open.Under safety position, release mechanism prevent because
Extraneous uncertain factor is interfered and causes the unexpected igniting of engine, guarantees the safety of engine；Release mechanism under working condition
Guarantee the smooth reliable ignition of engine.The conversion of two states be by the external world to actuation module (hereinafter referred to as component) be powered on come
It realizes, therefore actuation module is the core component of release mechanism, the quality of component will directly decide the product matter of release mechanism
Amount.
In process of production, actuation module after the assembly is completed, will vibrate it, the screenings examination such as temperature, electromagnetic compatibility
It tests, achieve the purpose that discovery and rejects the appearance of bad part, component, defective workmanship and initial failure.
Requirement when carrying out screening test to actuation module: during test, the state of actuation module should be able to be supervised
It surveys；Actuation module should not be converted under DC7V voltage, and actuation module should be converted reliably under DC20V voltage；Voltage should be able to be
DC7V~20V is continuously adjustable；Vibration screening can once connect 8 and components above.
Actuation module and extraneous connection are the conducting wires of 10 stripping heads, are just two, motor respectively, minus two, motor, electromagnetism
Pin two, discharge cock two, operating switch two.According to test requirements document, it is necessary to while meeting above-mentioned 4 requirements, and it is current
It is that power supply manually is separately connected to 10 conducting wires, it is low that there are connection reliability, intricate operation etc. when being screened to actuation module
Problem.Currently without the instrument of 4 conditions can be met simultaneously, therefore develop actuation module screening conversion device (hereinafter referred to as
Conversion device).
Summary of the invention
In order to solve the problems existing in the prior art, while meeting above-mentioned 4 requirements, the present invention proposes a kind of rocket engine
Release mechanism actuation module screens conversion device.
The technical solution of the present invention is as follows:
A kind of rocket engine release mechanism actuation module screens conversion device, including box body, has front on box body
Plate and rear panel are fixed with circuit module in box body；It is characterized by:
There are 8 groups of button switches, every group of button switch is divided into discharge cock and operating switch, and corresponding on the front panel
Stateful indicator light；There is 20V, 7V voltage switching push button and voltage status display area on the front panel；The front
On plate there is potentiometer to adjust mouth, for 20V, 7V voltage to be adjusted；
There is alternating current 220V power switch, 220V power outlet and the cable connecting with actuation module on the rear panel
Interface；
It include two groups of AC/DC power modules, condition indication circuit module, voltage selection instruction measurement in the circuit module
Circuit module and time delay conversion circuit module；
First AC/DC power module gives condition indication circuit module for power supply, and the 2nd AC/DC power module refers to voltage selection
Show measuring circuit module and time delay conversion circuit module for power supply；
The condition indication circuit module is by 8 tunnels and the insurance shape that is connected on the first AC/DC power module power bus
State indicating circuit and 8 tunnels are simultaneously connected in the composition of the working state indicating circuit on power bus；
Every road safety position indicating circuit is made of concatenated resistance and Light-Emitting Diode, every road safety position indicating circuit
By the cable connection that is connect with actuation module to two ends SAFE of tested actuation module, when tested actuation module is in safety
When state, the two SAFE termination for being tested actuation module is logical, and the light emitting diode of the road safety position indicating circuit is lighted, the hair
Optical diode corresponds to a discharge cock status indicator lamp on front panel；
Every road working state indicating circuit is made of concatenated resistance and Light-Emitting Diode, every road working state indicating circuit
By the cable connection that is connect with actuation module to two ends WORK of tested actuation module, when tested actuation module is in work
When state, the two WORK termination for being tested actuation module is logical, and the light emitting diode of the road working state indicating circuit is lighted, the hair
Optical diode corresponds to an operating switch status indicator lamp on front panel；
The 2nd AC/DC power module selects instruction measuring circuit module to be connected in second source bus by voltage；
The voltage selection instruction measuring circuit includes voltage-selected switch, 20V voltage selecting circuit and 7V voltage selecting circuit；Voltage
Selection switchs 20V, 7V voltage switching push button on corresponding front panel；
20V voltage selecting circuit is by the first DC/DC module, the first potentiometer, first resistor and 20V voltage identification luminous two
Pole pipe composition；The input of first DC/DC module connects on voltage-selected switch, and the output of the first DC/DC module connects the first potentiometer, the
One resistance and 20V voltage identification light emitting diode, when voltage-selected switch gates 20V voltage selecting circuit, 20V voltage identification
Light emitting diode is lighted, and by adjusting the first potentiometer, can change the partial pressure in first resistor, the partial pressure in first resistor is defeated
Out in second source bus；First potentiometer is corresponding with potentiometer on the front panel and adjusts mouth；
7V voltage selecting circuit is by the 2nd DC/DC module, the second potentiometer, second resistance and 7V voltage identification light-emitting diodes
Pipe composition；The input of 2nd DC/DC module connects on voltage-selected switch, and the output of the 2nd DC/DC module connects the second potentiometer, second
Resistance and 7V voltage identification light emitting diode, when voltage-selected switch gates 7V voltage selecting circuit, 7V voltage identification shines
Diode is lighted, and by adjusting the second potentiometer, can change the partial pressure in second resistance, the partial pressure in second resistance is output to
In second source bus；Second potentiometer is corresponding with potentiometer on the front panel and adjusts mouth；
The time delay conversion circuit module is from 8 tunnels and the insurance that is connected in second source bus is to work time-delay conversion electricity
Road and 8 tunnels and the work being connected in second source bus are to insurance time delay conversion circuit composition；
Every road is insured to work time delay conversion circuit to be made of delayer and operating switch；The delay time of delayer is
200ms, the end SIGN and the end GND of delayer are triggering end, and the end OUT+ of delayer is connected by the cable connecting with actuation module
It is connected to the motor anode of tested actuation module, the end OUT- of delayer passes through the cable connection that connect with actuation module to tested work
The motor negative terminal of dynamic component；Operating switch connects at the end SIGN and the end VIN of delayer；
Every road, which works, to be made of to insurance time delay conversion circuit delayer and discharge cock；The delay time of delayer is
200ms, the end SIGN and the end GND of delayer are triggering end, and the end OUT+ of delayer is connected by the cable connecting with actuation module
It is connected to the electromagnetism pin anode of tested actuation module, the end OUT- of delayer is by the cable connection that connect with actuation module to tested
The electromagnetism pin negative terminal of actuation module；Discharge cock connects at the end SIGN and the end VIN of delayer.
Beneficial effect
Actuation module screening conversion device proposed by the present invention is applied to the sieve such as vibration, temperature, electromagnetic compatibility of actuation module
In choosing test, which can correctly control actuation module and carry out state conversion, the state for indicating component, accurately show its turn
Voltage and easy to connect, reliable with actuation module is changed, the requirement of actuation module screening test is fully met.
One conversion device can connect several actuation modules simultaneously as needed, only need to increase the time delay module of identical quantity i.e.
Can, it is not limited, there is preferable scalability.
The development of the conversion device, accurate power-up time, simplified operating process improve working efficiency, reduce behaviour
Authors' labor intensity, and it is light, it is small and exquisite, convenient for transhipment.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 state instruction schematic circuit；
Fig. 2 voltage selection instruction measuring circuit principle；
Fig. 3 time delay conversion circuit principle；
Fig. 4: front panel figure；
Fig. 5: rear panel figure.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiment is exemplary, it is intended to it is used to explain the present invention, and
It is not considered as limiting the invention.
A kind of rocket engine release mechanism actuation module proposed by the present invention screens conversion device, including box body, on box body
With front panel and rear panel, circuit module is fixed in box body.
As shown in figure 4, having 8 groups of button switches on the front panel, every group of button switch is divided into discharge cock and work
Switch, and it is corresponding with status indicator lamp；There is 20V, 7V voltage switching push button and voltage status viewing area on the front panel
Domain；On the front panel there is potentiometer to adjust mouth, for 20V, 7V voltage to be adjusted.
As shown in figure 5, having alternating current 220V power switch, 220V power outlet and and actuation module on the rear panel
The cable interface of connection.
It include two groups of AC/DC power modules, condition indication circuit module, voltage selection instruction measurement in the circuit module
Circuit module and time delay conversion circuit module.
First AC/DC power module gives condition indication circuit module for power supply, and the 2nd AC/DC power module refers to voltage selection
Show measuring circuit module and time delay conversion circuit module for power supply；The framework of two groups of power modules improves the reliability of conversion device.
As shown in Figure 1, the condition indication circuit module is by 8 tunnels and is connected in the first AC/DC power module power bus
On safety position indicating circuit and 8 tunnels and be connected in the working state indicating circuit on power bus composition.
Every road safety position indicating circuit is made of concatenated resistance and Light-Emitting Diode, every road safety position indicating circuit
By the cable connection that is connect with actuation module to two ends SAFE of tested actuation module, when tested actuation module is in safety
When state, the two SAFE termination for being tested actuation module is logical, and the light emitting diode of the road safety position indicating circuit is lighted, the hair
Optical diode corresponds to a discharge cock status indicator lamp on front panel.
Every road working state indicating circuit is made of concatenated resistance and Light-Emitting Diode, every road working state indicating circuit
By the cable connection that is connect with actuation module to two ends WORK of tested actuation module, when tested actuation module is in work
When state, the two WORK termination for being tested actuation module is logical, and the light emitting diode of the road working state indicating circuit is lighted, the hair
Optical diode corresponds to an operating switch status indicator lamp on front panel.
As shown in Fig. 2, the 2nd AC/DC power module selects instruction measuring circuit module to be connected to the second electricity by voltage
On source bus；The voltage selection instruction measuring circuit includes voltage-selected switch S3,20V voltage selecting circuit and the choosing of 7V voltage
Select circuit and gauge outfit V1；Voltage-selected switch corresponds to 20V, 7V voltage switching push button on front panel.
20V voltage selecting circuit is by the first DC/DC module, the first potentiometer, first resistor and 20V voltage identification luminous two
Pole pipe composition；The input of first DC/DC module connects on voltage-selected switch, and the output of the first DC/DC module connects the first potentiometer, the
One resistance and 20V voltage identification light emitting diode, when voltage-selected switch gates 20V voltage selecting circuit, 20V voltage identification
Light emitting diode is lighted, and by adjusting the first potentiometer, can change the partial pressure in first resistor, the partial pressure in first resistor is defeated
Out in second source bus, and shown on gauge outfit V1；First potentiometer is corresponding with potentiometer adjusting on the front panel
Mouthful.
7V voltage selecting circuit is by the 2nd DC/DC module, the second potentiometer, second resistance and 7V voltage identification light-emitting diodes
Pipe composition；The input of 2nd DC/DC module connects on voltage-selected switch, and the output of the 2nd DC/DC module connects the second potentiometer, second
Resistance and 7V voltage identification light emitting diode, when voltage-selected switch gates 7V voltage selecting circuit, 7V voltage identification shines
Diode is lighted, and by adjusting the second potentiometer, can change the partial pressure in second resistance, the partial pressure in second resistance is output to
In second source bus, and shown on gauge outfit V1；Second potentiometer is corresponding with potentiometer on the front panel and adjusts mouth.
As shown in figure 3, the time delay conversion circuit module is from 8 tunnels and the insurance that is connected in second source bus is to work
Time delay conversion circuit and 8 tunnels and the work being connected in second source bus are to insurance time delay conversion circuit composition.
Every road is insured to work time delay conversion circuit to be made of delayer and operating switch；The end SIGN of delayer and GND
End is triggering end, the end OUT+ of delayer by the motor of the cable connection that is connect with actuation module to tested actuation module just
End, the motor negative terminal that the end OUT- of delayer passes through the cable connection that connect with actuation module to tested actuation module；Work is opened
It closes and connects at the end SIGN and the end VIN of delayer.If tested actuation module is qualified, when in second source bus being 20V, when pressing
After lower operating switch, the motor of actuation module is powered on, and power-up time 200ms, realization is converted by safety position to working condition；
When in second source bus being 7V, after pressing operating switch, the motor of actuation module is not powered, and state is not converted.
Every road, which works, to be made of to insurance time delay conversion circuit delayer and discharge cock；The end SIGN of delayer and GND
End is triggering end, the end OUT+ of delayer by the electromagnetism pin of the cable connection that is connect with actuation module to tested actuation module just
End, the electromagnetism pin negative terminal that the end OUT- of delayer passes through the cable connection that connect with actuation module to tested actuation module；Insurance
Switch connects at the end SIGN and the end VIN of delayer.If tested actuation module is qualified, when in second source bus being 20V, when
After pressing discharge cock, the electromagnetism pin of actuation module is powered on, and power-up time 200ms, realization is converted by working condition to insurance
State；When in second source bus being 7V, after pressing discharge cock, the electromagnetism pin of actuation module is not powered, and state does not turn
It changes.
Delayer can accurately control the power-up time of actuation module, and 0.1s~999s's is continuously adjustable, and precision can reach
0.01s。
The conversion device uses Modular Structure Design, and intermodule is by cable connection, if one of module damage, only needs
The module of the damage is replaced, other circuits will not be damaged, Gu its maintenanceability is stronger.
As shown in figure 5, the cable on rear panel is four groups of lead-out wires, 19 core Y11X-1419TK2 aviation sockets are welded, with
Release mechanism actuation module screens the 19 core Y11H-1419ZJ10a aviation sockets connection on tooling (checking tooling below), checks
19 core aviation sockets in tooling are connected inside tooling with conducting wire and fast insert；Actuation module lead-out wire is connected directly between fast grafting
On plug-in unit, poor contact, wiring mistake, short circuit and the problem not easy to disassemble generated by artificial directly wiring is avoided.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (1)
1. a kind of rocket engine release mechanism actuation module screens conversion device, including box body, have front panel with after on box body
Panel is fixed with circuit module in box body；It is characterized by:
There are 8 groups of button switches, every group of button switch is divided into discharge cock and operating switch, and is corresponding with shape on the front panel
State indicator light；There is 20V, 7V voltage switching push button and voltage status display area on the front panel；On the front panel
Mouth is adjusted with potentiometer, for 20V, 7V voltage to be adjusted；
On the rear panel there is alternating current 220V power switch, 220V power outlet and the cable connecting with actuation module to connect
Mouthful；
It include two groups of AC/DC power modules, condition indication circuit module, voltage selection instruction measuring circuit in the circuit module
Module and time delay conversion circuit module；
First AC/DC power module gives condition indication circuit module for power supply, and the 2nd AC/DC power module selects instruction to survey to voltage
Measure circuit module and time delay conversion circuit module for power supply；
The condition indication circuit module is referred to by 8 tunnels and the safety position that is connected on the first AC/DC power module power bus
Show circuit and 8 tunnels and is connected in the composition of the working state indicating circuit on power bus；
Every road safety position indicating circuit is made of concatenated resistance and Light-Emitting Diode, and every road safety position indicating circuit passes through
The cable connection connecting with actuation module is to two ends SAFE of tested actuation module, when tested actuation module is in a safe condition
When, the two SAFE termination for being tested actuation module is logical, and the light emitting diode of the road safety position indicating circuit is lighted, this luminous two
Pole pipe corresponds to a discharge cock status indicator lamp on front panel；
Every road working state indicating circuit is made of concatenated resistance and Light-Emitting Diode, and every road working state indicating circuit passes through
The cable connection connecting with actuation module is to two ends WORK of tested actuation module, when tested actuation module is in running order
When, the two WORK termination for being tested actuation module is logical, and the light emitting diode of the road working state indicating circuit is lighted, this luminous two
Pole pipe corresponds to an operating switch status indicator lamp on front panel；
The 2nd AC/DC power module selects instruction measuring circuit module to be connected in second source bus by voltage；It is described
Voltage selection instruction measuring circuit includes voltage-selected switch, 20V voltage selecting circuit and 7V voltage selecting circuit；Voltage selection
Switch 20V, 7V voltage switching push button on corresponding front panel；
20V voltage selecting circuit is by the first DC/DC module, the first potentiometer, first resistor and 20V voltage identification light emitting diode
Composition；The input of first DC/DC module connects on voltage-selected switch, and the output of the first DC/DC module connects the first potentiometer, the first electricity
Resistance and 20V voltage identification light emitting diode, when voltage-selected switch gates 20V voltage selecting circuit, 20V voltage identification shines
Diode is lighted, and by adjusting the first potentiometer, can change the partial pressure in first resistor, the partial pressure in first resistor is output to
In second source bus；First potentiometer is corresponding with potentiometer on the front panel and adjusts mouth；
7V voltage selecting circuit is by the 2nd DC/DC module, the second potentiometer, second resistance and 7V voltage identification light emitting diode group
At；The input of 2nd DC/DC module connects on voltage-selected switch, and the output of the 2nd DC/DC module connects the second potentiometer, second resistance
With 7V voltage identification light emitting diode, when voltage-selected switch gates 7V voltage selecting circuit, 7V voltage identification light-emitting diodes
Pipe is lighted, and by adjusting the second potentiometer, can change the partial pressure in second resistance, the partial pressure in second resistance is output to second
On power bus；Second potentiometer is corresponding with potentiometer on the front panel and adjusts mouth；
The time delay conversion circuit module from 8 tunnels and the insurance that is connected in second source bus to work time delay conversion circuit and
8 tunnels and the work being connected in second source bus are to insurance time delay conversion circuit composition；
Every road is insured to work time delay conversion circuit to be made of delayer and operating switch；The delay time of delayer is 200ms,
The end SIGN of delayer and the end GND are triggering end, and the end OUT+ of delayer passes through the cable connection that connect with actuation module to quilt
Survey the motor anode of actuation module, the end OUT- of delayer passes through the cable connection that connect with actuation module to tested actuation module
Motor negative terminal；Operating switch connects at the end SIGN and the end VIN of delayer；
Every road, which works, to be made of to insurance time delay conversion circuit delayer and discharge cock；The delay time of delayer is 200ms,
The end SIGN of delayer and the end GND are triggering end, and the end OUT+ of delayer passes through the cable connection that connect with actuation module to quilt
Survey the electromagnetism pin anode of actuation module, the end OUT- of delayer passes through the cable connection that connect with actuation module to tested actuation group
The electromagnetism pin negative terminal of part；Discharge cock connects at the end SIGN and the end VIN of delayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811297025.7A CN109541363A (en) | 2018-11-01 | 2018-11-01 | A kind of rocket engine release mechanism actuation module screening conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811297025.7A CN109541363A (en) | 2018-11-01 | 2018-11-01 | A kind of rocket engine release mechanism actuation module screening conversion device |
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| CN109541363A true CN109541363A (en) | 2019-03-29 |
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ID=65846250
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|---|---|---|---|
| CN201811297025.7A Pending CN109541363A (en) | 2018-11-01 | 2018-11-01 | A kind of rocket engine release mechanism actuation module screening conversion device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3733714C1 (en) * | 1987-10-06 | 1994-01-20 | Dornier Gmbh | Safety and time delay control mechanisms for pressure activated mine - has two independent microprocessor-controlled time delay activation circuits and additional optical control (remote) connections |
| CN201917623U (en) * | 2010-11-30 | 2011-08-03 | 珠海格力新元电子有限公司 | Durability tester for 40-path film capacitors |
| CN102901902A (en) * | 2011-07-28 | 2013-01-30 | 飞思卡尔半导体公司 | Method for testing parallel connection power supply connector of semiconductor device |
| WO2015001218A1 (en) * | 2013-07-02 | 2015-01-08 | Renault S.A.S. | Method of determining the presence of a supply network of it type for supplying an automobile battery charger and corresponding charger |
| CN105422315A (en) * | 2015-11-27 | 2016-03-23 | 湖北三江航天红峰控制有限公司 | Solid rocket engine safety mechanism control circuit and control method |
| US20170080807A1 (en) * | 2015-09-23 | 2017-03-23 | Continental Automotive Systems, Inc. | Discrete under voltage/over voltage monitoring circuit |
| CN107844085A (en) * | 2017-12-15 | 2018-03-27 | 西安航天动力测控技术研究所 | Digital safety mechanism status conversion equipment |
-
2018
- 2018-11-01 CN CN201811297025.7A patent/CN109541363A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3733714C1 (en) * | 1987-10-06 | 1994-01-20 | Dornier Gmbh | Safety and time delay control mechanisms for pressure activated mine - has two independent microprocessor-controlled time delay activation circuits and additional optical control (remote) connections |
| CN201917623U (en) * | 2010-11-30 | 2011-08-03 | 珠海格力新元电子有限公司 | Durability tester for 40-path film capacitors |
| CN102901902A (en) * | 2011-07-28 | 2013-01-30 | 飞思卡尔半导体公司 | Method for testing parallel connection power supply connector of semiconductor device |
| WO2015001218A1 (en) * | 2013-07-02 | 2015-01-08 | Renault S.A.S. | Method of determining the presence of a supply network of it type for supplying an automobile battery charger and corresponding charger |
| US20170080807A1 (en) * | 2015-09-23 | 2017-03-23 | Continental Automotive Systems, Inc. | Discrete under voltage/over voltage monitoring circuit |
| CN105422315A (en) * | 2015-11-27 | 2016-03-23 | 湖北三江航天红峰控制有限公司 | Solid rocket engine safety mechanism control circuit and control method |
| CN107844085A (en) * | 2017-12-15 | 2018-03-27 | 西安航天动力测控技术研究所 | Digital safety mechanism status conversion equipment |
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Application publication date: 20190329 |