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CN113900043B - Measurement system conduction and loop corresponding relation test equipment for spacecraft thermal test - Google Patents

Measurement system conduction and loop corresponding relation test equipment for spacecraft thermal test Download PDF

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Publication number
CN113900043B
CN113900043B CN202111176198.5A CN202111176198A CN113900043B CN 113900043 B CN113900043 B CN 113900043B CN 202111176198 A CN202111176198 A CN 202111176198A CN 113900043 B CN113900043 B CN 113900043B
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CN
China
Prior art keywords
circuit board
test
barrel
conduction
plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111176198.5A
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Chinese (zh)
Other versions
CN113900043A (en
Inventor
梁硕
王擎宇
葛哲阳
朱琳
刘阳
刘泽元
申彬
张皓
姚刚
张晓丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Spacecraft Environment Engineering
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Beijing Institute of Spacecraft Environment Engineering
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Publication date
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Priority to CN202111176198.5A priority Critical patent/CN113900043B/en
Publication of CN113900043A publication Critical patent/CN113900043A/en
Application granted granted Critical
Publication of CN113900043B publication Critical patent/CN113900043B/en
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Classifications

    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
    • G01R31/69—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board of terminals at the end of a cable or a wire harness; of plugs; of sockets, e.g. wall sockets or power sockets in appliances

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The application discloses a measurement system conduction and loop correspondence test device for a spacecraft thermal test, which comprises a barrel, wherein one end of the barrel is provided with a Y2-50 plug, one end of the barrel, which is far away from the Y2-50 plug, is provided with a bottom cover, a ladder load circuit board is arranged in the barrel, a circuit board support frame matched with the ladder load circuit board is arranged in the barrel, a plurality of ladder load resistors are attached to the ladder load circuit board, and the ladder load resistors are arranged in series. The application aims to realize quick test of the conduction and loop corresponding relation of a measuring cable, a measuring junction box and a measuring number break off card, namely a measuring system in the preparation process of a spacecraft thermal test, and adopts the step load resistor introduced into the existing short circuit Y2-50 plug to realize the combination of the conduction and corresponding relation of the measuring system in the test process, so that two tasks are completed in one test, and the test work efficiency is improved.

Description

Measurement system conduction and loop corresponding relation test equipment for spacecraft thermal test
Technical Field
The invention relates to the technical field of ground test and experiment of spacecrafts, in particular to a test device for the corresponding relation between conduction and loop of a measurement system for thermal test of a spacecraft.
Background
The spacecraft vacuum heat test measurement system is a core system of a spacecraft vacuum heat test, electric connection and signal transmission of the measurement system are completed through cables and electric connectors, the measurement system comprises a measurement cable, a measurement junction box and a data acquisition board card, the conduction test of the measurement system is the first test performed in the preparation process of the vacuum heat test, the measurement cable is short-circuited by a Y2-50 plug short-circuited by all loops, the conduction performance of the measurement system is judged to be good or not by excitation given by data acquisition instrument equipment, the resistance of the cable is read back to judge whether the corresponding relation among the cables is correct or not, the measurement loop is used as a basic minimum unit of the whole measurement and control system, the correctness of the corresponding relation of each loop is a precondition for guaranteeing the true and reliable vacuum heat test data, and if the corresponding relation of a channel can be added in the conduction test process of the measurement and control system, the reliability of the test is improved, and the test is ensured to be carried out smoothly.
The method is simple to operate, clear and effective in data, free of false measurement, and is capable of quickly positioning the whole Y2-50 plug, but the conduction test can only indicate the condition of the loop conduction, so that the corresponding relation of the loop is not correct, the current loop corresponding relation test is not described, the operator can only utilize a universal meter to perform successive inspection on a cable core, the cable and a junction box are relatively heavy, the hole sites on the Y2-50 plug are compact, a plurality of inconveniences are brought to operation, the operation is very hard and easy to bring errors in operation, the pins of the universal meter are misplaced, and therefore false measurement is generated, once the detection of a certain channel is wrong, the operator cannot quickly position, and if the corresponding relation of the measurement channel is added in the conduction test process of the measuring system, the working efficiency can be improved, and the reliability of the test is ensured.
Disclosure of Invention
The invention aims at: in order to solve the problems, the provided measuring system conduction and loop correspondence testing equipment for the spacecraft thermal test is provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a measurement system for spacecraft thermal test switches on and return circuit correspondence test equipment, includes the barrel, the one end of barrel is provided with Y2-50 plug, the one end that the barrel kept away from Y2-50 plug is provided with the bottom, the inside of barrel is provided with ladder load circuit board, the inside of barrel is provided with ladder load circuit board complex circuit board support frame.
Preferably, a plurality of ladder load resistors are attached to the ladder load circuit board, and a plurality of the ladder load resistors are provided with 47 branches and are arranged in series.
Preferably, a plurality of evenly distributed threaded holes are formed in the step load circuit board and the circuit board support frame, and the step load circuit board is detachably connected with the circuit board support frame through bolts.
Preferably, two through holes which are symmetrically distributed are formed in the circuit board supporting frame, and the circuit board supporting frame is detachably connected with the bottom cover through the through holes by bolts.
Preferably, an internal thread matched with a bottom cover is arranged inside the cylinder body, and the bottom cover is in threaded connection with the cylinder body.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
the application aims to realize quick test of the conduction and loop corresponding relation of a measuring cable, a measuring junction box and a measuring number break off card, namely a measuring system in the preparation process of the spacecraft thermal test, and adopts the step load resistor introduced into the existing short circuit Y2-50 plug to realize the combination of the conduction and corresponding relation of the measuring system in the test process, realize the completion of two tasks of one-time test and improve the test work efficiency.
Drawings
Fig. 1 shows a schematic structural diagram of a measurement system conduction and loop correspondence test device for spacecraft thermal tests according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a ladder load circuit design according to an embodiment of the present invention;
fig. 3 is a schematic diagram showing a conduction and loop correspondence test structure of a vacuum thermal test measurement system according to an embodiment of the present invention.
Legend description: 1. a cylinder; 2. y2-50 plug; 3. a bottom cover; 4. a step load circuit board; 5. a circuit board support; 6. a ladder load resistor; 7. and a through hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the present invention provides a technical solution:
The utility model provides a measurement system conduction and return circuit correspondence test equipment for spacecraft thermal test, including barrel 1, barrel 1 adopts the hardening aluminum alloy material, surface parcel PE polyethylene heat shrinkage bush, in order to reach antiskid, prevent colliding with, wear-resisting effect, the one end of barrel 1 is provided with Y2-50 plug 2, step load circuit board 4 is total to need draw 50 wires to weld on Y2-50 plug 2, for reducing step load volume, this design no longer adopts the electric connector to carry out step load circuit board 4 and wire's connection, but directly weld the wire on step load circuit board 4 pad, in order to guarantee that the wire can not open the welding owing to the stress, open a row of via hole in the pad next door, pass the wire and weld, avoid vertical stress directly to act on the pad, Y2-50 plug 2 matches with step load shell head screw thread size, use the connection tail cover screw nest to enter barrel 1 after the frame circle with Y2-50 plug 2, barrel 1 keeps away from Y2-50 plug 2's one end is provided with bottom cover 3, barrel 1's inside is provided with load circuit board 4, be provided with step load circuit board 5 with the support frame 5 of barrel 1 inside load circuit board.
Specifically, as shown in fig. 1 and fig. 2, a plurality of ladder load resistors 6 are attached to the ladder load circuit board 4, 47 ladder load resistors 6 are provided and are arranged in series, the resistance value of each ladder load resistor 6 is 5 ohms, an AR12ATS0050N type film patch resistor is adopted, the resistor has the characteristics of high precision and good stability, the appearance is 2512 type package, the electrical installation is convenient, and the size of the ladder load circuit board 4 is 80mm x 33mm.
Specifically, as shown in fig. 1 and fig. 2, a plurality of evenly distributed threaded holes are formed in the ladder load circuit board 4 and the circuit board support frame 5, the ladder load circuit board 4 and the circuit board support frame 5 are detachably connected through bolts, separation of the ladder load circuit board 4 and the circuit board support frame 5 is facilitated, the integration level of components is improved, the size of the ladder load circuit board 4 is reduced, the ladder load circuit board 4 adopts a double-layer board, the front side and the back side are both provided with ladder load resistors 6, and the front side and the back side are connected through bonding pads of welding wires.
Specifically, as shown in fig. 1, two through holes 7 symmetrically distributed are formed in the circuit board supporting frame 5, and the circuit board supporting frame 5 is detachably connected with the bottom cover 3 through the through holes 7 by bolts, so that the circuit board supporting frame 5 and the bottom cover 3 are conveniently separated.
Specifically, as shown in fig. 1, the inside of the barrel 1 is provided with an internal thread matched with the bottom cover 3, the bottom cover 3 is in threaded connection with the barrel 1, the bottom cover 3 is assembled into the barrel 1 by adopting an internal thread, so that the barrel 1 is cylindrical, is convenient for holding and exerting force, is not easy for an adversary to collide with, and meanwhile, a retractable wire hanging tool is manufactured by slotting the bottom cover 3 and is used for threading wires.
In summary, the measurement system conduction and loop correspondence test device for spacecraft thermal test provided in this embodiment is easier to perform plugging work on a cable with the existing shorting plug, the existing shorting plug is successfully replaced in the practical application process, the design of the ladder load provides a reliable verification method for the accuracy of the conduction and loop correspondence of the spacecraft thermal test temperature measurement system, on the basis of the existing cable conduction test, the two works of verifying the cable conduction and loop correspondence are completed at one time under the condition that no new test link and test device are added, and the working efficiency and reliability of the loop correspondence test are greatly improved.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (1)

1. The testing device for the corresponding relation between conduction and loop of the measurement system for the spacecraft thermal test comprises a barrel (1) and is characterized in that one end of the barrel (1) is provided with a Y2-50 plug (2), one end of the barrel (1) far away from the Y2-50 plug (2) is provided with a bottom cover (3), the inside of the barrel (1) is provided with a ladder load circuit board (4), and the inside of the barrel (1) is provided with a circuit board supporting frame (5) matched with the ladder load circuit board (4);
A plurality of ladder load resistors (6) are attached to the ladder load circuit board (4), 47 ladder load resistors (6) are arranged in series, and the resistance value of each ladder load resistor (6) is 5 ohms;
A plurality of evenly distributed threaded holes are formed in the step load circuit board (4) and the circuit board support frame (5), and the step load circuit board (4) and the circuit board support frame (5) are detachably connected through bolts through the threaded holes;
two symmetrically distributed through holes (7) are formed in the circuit board supporting frame (5), and the circuit board supporting frame (5) is detachably connected with the bottom cover (3) through the through holes (7) through bolts;
an internal thread matched with the bottom cover (3) is arranged inside the cylinder body (1), and the bottom cover (3) is in threaded connection with the cylinder body (1);
The use of the test equipment and the existing short-circuit plug are easier to carry out plugging work on the cable, the existing short-circuit plug is successfully replaced in the practical application process, the design of the ladder load provides a reliable verification method for the accuracy of the conduction and loop correspondence of the spacecraft thermal test temperature measurement system, on the basis of the existing cable conduction test, the two works of cable conduction and loop correspondence verification are completed at one time under the condition that a new test link and test equipment are not added, and the working efficiency and reliability of loop correspondence test are greatly improved.
CN202111176198.5A 2021-10-09 2021-10-09 Measurement system conduction and loop corresponding relation test equipment for spacecraft thermal test Active CN113900043B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202111176198.5A CN113900043B (en) 2021-10-09 2021-10-09 Measurement system conduction and loop corresponding relation test equipment for spacecraft thermal test

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CN113900043B true CN113900043B (en) 2024-05-28

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航天器热试验加热电缆绝缘自动测试系统的设计;刘泽元;冯尧;梁硕;张曦;;电子测量技术;20170915(第09期);全文 *
航天器热试验电源健康管理系统的设计与实现;刘泽元;文晶;张曦;朱琳;;计算机测量与控制;20191225(第12期);全文 *
航天器热试验电缆自动测试装置的设计与实现;冯尧;吴东亮;廖韬;王擎宇;;计算机测量与控制;20170925(第09期);全文 *
航天器高可靠智能供配电系统设计;赵岩;杨友超;张翔;赵雷;李海伟;徐海运;;计算机测量与控制;20150825(第08期);全文 *
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