CN106291267A - The electrical property test instrument of spacecraft thermal test multicore cable - Google Patents

本发明公开了航天器热试验用多芯电缆的多功能电性能测试仪，该装置用于测量电缆线间导通性和线间绝缘性，包括电缆转接单元、信号引入连接单元、中央控制单元、继电器开关控制单元、测试电压产生单元、测试电路单元、数据处理单元、数据存储单元、人机交互单元。该装置体积小，重量轻，易于人员携带，在测试过程中，不需要人工操作更换测量端子，系统能够自动完成测量通道的切换，实现了地面测试电缆电性能测试的自动化、快速测量，并能够自动生成测试报告，提高了电缆测试的自动化程度和准确性。

The invention discloses a multi-functional electrical performance tester for multi-core cables used in spacecraft heat tests. The device is used for measuring the continuity and insulation between cables, and includes a cable transfer unit, a signal introduction connection unit, and a central control unit. unit, relay switch control unit, test voltage generation unit, test circuit unit, data processing unit, data storage unit, human-computer interaction unit. The device is small in size, light in weight, and easy to carry. During the test, no manual operation is required to replace the measurement terminals. The system can automatically complete the switching of the measurement channel, realizing the automatic and rapid measurement of the electrical performance test of the ground test cable, and can Automatically generate test reports, which improves the automation and accuracy of cable testing.

航天器热试验用多芯电缆的电性能测试仪Electrical performance tester for multi-core cables used in spacecraft thermal tests

技术领域technical field

本发明涉及一种电缆电性能测量技术领域，具体而言，本发明涉及一种航天器热试验用电缆的电性能测试装置。The invention relates to the technical field of cable electrical performance measurement, in particular, the invention relates to an electrical performance testing device for cables used for spacecraft heat tests.

背景技术Background technique

航天器在设计、总装及各种试验过程中，会使用大量的用于地面测试的电缆，在使用电缆之前，通常需要对电缆进行线间导通和线间绝缘测试，以确保每根电缆的线间导通绝缘性良好。During the design, assembly and various tests of the spacecraft, a large number of cables for ground testing are used. Before using the cables, it is usually necessary to test the continuity between the cables and the insulation between the cables to ensure the integrity of each cable. Good conduction and insulation between lines.

通常，对电缆的两根导线进行线间绝缘测试，是使用绝缘测试仪进行的，即将仪表的正负端子分别与被测两根导线对应的插针相连接，再启动绝缘测试仪进行测试，读取线间的绝缘阻值，来判断两导线间的绝缘性能。电缆的线间导通测试，即测试电缆内部某两根导线构成的闭合回路的阻值，进行导通测试时，需要在电缆的另一端，将电缆内部被测的两条导线在电气上连接，形成一个闭合的回路，同绝缘测试类似，利用万用表进行测量，读取回路的线阻值，来判断电缆的导通性能。Usually, the insulation test between the two wires of the cable is carried out with an insulation tester, that is, the positive and negative terminals of the instrument are respectively connected to the corresponding pins of the two wires under test, and then the insulation tester is started for testing. Read the insulation resistance between the wires to judge the insulation performance between the two wires. The line-to-line continuity test of the cable is to test the resistance of the closed loop formed by two wires inside the cable. When conducting the continuity test, it is necessary to electrically connect the two wires to be tested inside the cable at the other end of the cable. , to form a closed loop, similar to the insulation test, use a multimeter to measure, read the line resistance of the loop, and judge the conduction performance of the cable.

由于每个电缆插头的针数通常很多，如热试验使用的电缆通常为36芯或50芯，因此为了完成一个插头上全部导线的线间绝缘测试，需要测试的次数将是非常可观的，C³⁶ ₂＝630次或C⁵⁰ ₂＝1225次，而且每测试一次都需要手动更换与测试仪表正负接线端子相连接的插头和插针，即使测量电缆的线间导通性，也需要测量几十次。这种情况下，为了完成全部电缆的线间导通和绝缘测试，人工操作的工作量巨大，导致测试效率很低。Since the number of pins of each cable plug is usually a lot, for example, the cables used in the heat test are usually 36 cores or 50 cores, so in order to complete the line-to-line insulation test of all wires on a plug, the number of tests required will be very considerable, C ³⁶ ₂ = 630 times or C ⁵⁰ ₂ = 1225 times, and each test requires manual replacement of the plug and pin connected to the positive and negative terminals of the test instrument. ten times. In this case, in order to complete the line-to-line continuity and insulation tests of all cables, the workload of manual operation is huge, resulting in low test efficiency.

发明内容Contents of the invention

本发明的目的在于测量电缆内部导线的导通状态和各导线之间的绝缘程度，测试过程中，自动完成测量通道的切换，实现自动化、快速测量，并自动生成测试报告。The purpose of the present invention is to measure the conduction state of the wires inside the cable and the insulation degree between the wires. During the test, the switch of the measurement channel is automatically completed, and the automatic and fast measurement is realized, and the test report is automatically generated.

本发明的一种航天器热试验用多芯电缆的多功能电性能测试仪，包括电缆转接单元、信号引入连接单元、中央控制单元、继电器开关控制单元、测试电压产生单元、测试电路单元、数据处理单元、数据存储与人机交互单元，其中中央控制单元、继电器开关控制单元、测试电压产生单元、测试电路单元、数据处理单元、数据存储单元、人机交互单元集成于测试控制模块中，与信号引入连接单元一起构成多功能电缆电性能测试仪主机，待测试电缆通过电缆转接单元与主机连接，中央控制单元将人机交互单元传来的指令处理完成后传送给测试电压产生单元和继电器开关控制单元，继电器开关控制单元按照指令完成相应继电器的开关，测试电压产生单元按照接收到的指令产生相应的电流和电压传输至信号引入连接单元，测试电路单元将测量得到的电阻数据发送至数据处理单元，数据处理单元进行数据判读后生成测试报告并将测试报告发送至数据存储单元和人机交互单元。A multi-functional electrical performance tester of a multi-core cable for spacecraft heat test of the present invention comprises a cable transfer unit, a signal introduction connection unit, a central control unit, a relay switch control unit, a test voltage generation unit, a test circuit unit, Data processing unit, data storage and human-computer interaction unit, wherein the central control unit, relay switch control unit, test voltage generation unit, test circuit unit, data processing unit, data storage unit, and human-computer interaction unit are integrated in the test control module, Together with the signal introduction connection unit, it constitutes the main unit of the multifunctional cable electrical performance tester. The cable to be tested is connected to the main unit through the cable transfer unit. The relay switch control unit, the relay switch control unit completes the switching of the corresponding relay according to the instruction, the test voltage generation unit generates the corresponding current and voltage according to the received instruction and transmits it to the signal introduction connection unit, and the test circuit unit sends the measured resistance data to The data processing unit generates a test report after performing data interpretation and sends the test report to the data storage unit and the human-computer interaction unit.

其中，人机交互单元所采用设备为触摸式液晶显示屏。Wherein, the device adopted by the human-computer interaction unit is a touch-type liquid crystal display screen.

其中，电缆转接单元的主机连接端为与信号引入连接单元接口连接的标准接口，电缆转接单元的电缆转接单元的待测电缆连接端配置了相应不同规格的电连接器。Wherein, the host connection end of the cable transfer unit is a standard interface connected to the interface of the signal introduction connection unit, and the cable connection end of the cable transfer unit to be tested is equipped with corresponding electrical connectors of different specifications.

其中，电连接器包括Y2-30、Y2-36、Y2-50、Y2-55四种类型，用于连接不同型号的测试电缆。Among them, the electrical connectors include four types: Y2-30, Y2-36, Y2-50, and Y2-55, which are used to connect different types of test cables.

其中，在进行电缆导通测试时，测试激励电流为200mA。Wherein, when conducting the cable conduction test, the test excitation current is 200mA.

其中，在进行电缆线间绝缘测试时，测试电压选择50V、100V、250V、500V或1000V。Among them, when conducting the cable insulation test, the test voltage is selected to be 50V, 100V, 250V, 500V or 1000V.

其中，在进行电缆导通和线间绝缘测试时测试通道不大于55个。Among them, the number of test channels is not more than 55 when performing cable continuity and line-to-line insulation tests.

本发明的多功能电缆电性能测试仪体积小，重量轻，易于人员携带，在测试过程中，不需要人工操作更换测量端子，系统能够自动完成测量通道的切换，实现了地面测试电缆电性能测试的自动化、快速测量，并能够自动生成测试报告，提高了电缆测试的自动化程度和准确性。解决了现有技术中航天器热试验用电缆电性能测试中人工操作的工作量巨大，导致测试效率很低的技术弊端。The multifunctional cable electrical performance tester of the present invention is small in size, light in weight, and easy to be carried by personnel. During the test process, no manual operation is required to replace the measurement terminals, and the system can automatically complete the switching of the measurement channels, realizing the electrical performance test of the ground test cable. It can automatically and quickly measure, and can automatically generate test reports, which improves the automation and accuracy of cable testing. The invention solves the technical disadvantage of low test efficiency due to the huge workload of manual operation in the electric performance test of the cable used for the thermal test of the spacecraft in the prior art.

附图说明Description of drawings

图1为本发明的航天器热试验用多芯电缆的多功能电性能测试仪示意图。1 is a schematic diagram of a multi-functional electrical performance tester for a multi-core cable for a spacecraft thermal test of the present invention.

其中，1.测试控制模块；2.信号引入连接单元；3.电缆转接单元；4.电缆转接单元主机连接端；5.电缆转接单元待测电缆连接端；6.连接电缆。Among them, 1. Test control module; 2. Signal introduction connection unit; 3. Cable transfer unit; 4. Host connection end of cable transfer unit; 5. Cable transfer unit to-be-tested cable connection end;

具体实施方式detailed description

下面结合附图对本发明的航天器热试验用多芯电缆的多功能电性能测试仪作进一步的说明。当然，描述下列具体实施方式只为示例本发明的不同方面的内容，而不应理解为限制本发明范围。Below in conjunction with accompanying drawing, the multi-functional electrical performance tester of multi-core cable for spacecraft heat test of the present invention is further described. Of course, the following specific embodiments are described only to illustrate different aspects of the present invention, and should not be construed as limiting the scope of the present invention.

如图1所示，本发明中的一种航天器热试验用多芯电缆的多功能电性能测试仪，包括集成于测试控制模块1的中央控制单元、继电器开关控制单元、测试电压产生单元、测试电路单元、数据处理单元、数据存储单元、人机交互单元，设置在主机上的信号引入连接单元2，测试过程中与信号引入连接单元连接的电缆转接单元3，电缆转接单元包括电缆转接单元主机连接端4、电缆转接单元待测电缆连接端5和连接电缆6。其中，中央控制单元将人机交互单元传来的指令处理完成后传送给测试电压产生单元和继电器开关控制单元。继电器开关控制单元按照指令完成相应继电器的开关，测试电压产生单元按照接收到的指令产生相应的电流和电压传输至信号引入连接单元。测试电路单元将测量得到的电阻数据发送至数据处理单元，数据处理单元进行数据判读后生成测试报告并将测试报告发送至数据存储单元和人机交互单元。As shown in Fig. 1, a kind of multi-functional electric property tester of spacecraft thermal test multi-core cable in the present invention comprises the central control unit integrated in test control module 1, relay switch control unit, test voltage generation unit, Test circuit unit, data processing unit, data storage unit, human-computer interaction unit, signal lead-in connection unit 2 set on the host computer, cable transfer unit 3 connected to the signal lead-in connection unit during the test, the cable transfer unit includes a cable The connection end 4 of the host computer of the transfer unit, the connection end 5 of the cable to be tested and the connection cable 6 of the cable transfer unit. Wherein, the central control unit transmits the instruction transmitted from the human-computer interaction unit to the test voltage generation unit and the relay switch control unit after processing. The relay switch control unit completes the switching of the corresponding relay according to the instruction, and the test voltage generation unit generates the corresponding current and voltage according to the received instruction and transmits it to the signal introduction connection unit. The test circuit unit sends the measured resistance data to the data processing unit, and the data processing unit generates a test report after interpreting the data and sends the test report to the data storage unit and the human-computer interaction unit.

本发明的多功能电缆电性能测试仪外形小巧，重量不大于5kg，便于携带。电缆转接单元3的电缆转接单元主机连接端4为与信号引入连接单元接口连接的标准接口，电缆转接单元3的电缆转接单元待测电缆连接端5配置了相应不同规格的电连接器，包括Y2-30、Y2-36、Y2-50、Y2-55四种类型，用于连接不同型号的测试电缆。The multi-functional cable electric property tester of the present invention has a small appearance, a weight of not more than 5kg, and is easy to carry. The cable transfer unit host connection end 4 of the cable transfer unit 3 is a standard interface connected to the interface of the signal introduction connection unit, and the cable transfer unit test cable connection end 5 of the cable transfer unit 3 is equipped with electrical connections of different specifications. There are four types of connectors, including Y2-30, Y2-36, Y2-50, and Y2-55, which are used to connect different types of test cables.

本发明的多功能电缆电性能测试仪在使用前应根据不同型号的待测电缆选择电缆转接单元3，将待测试电缆的电连接器连接至电缆转接单元待测电缆连接端5，将电缆转接单元主机连接端4接入信号引入连接单元2，使待测电缆各接点引入到测试通道之中。通过测试控制模块1的人机交互单元下达测试指令，中央控制单元将人机交互单元传来的指令处理完成后传送给测试电压产生单元和继电器开关控制单元。继电器开关控制单元按照指令完成相应继电器的开关，测试电压产生单元按照接收到的指令产生相应的电流和电压传输至信号引入连接单元。测试电路单元将测量得到的电阻数据发送至数据处理单元，数据处理单元进行数据判读后生成测试报告并将测试报告发送至数据存储单元和人机交互单元。The multifunctional cable electrical performance tester of the present invention should select the cable transfer unit 3 according to different types of cables to be tested before use, and connect the electrical connector of the cable to be tested to the cable transfer unit to be tested. The connecting terminal 4 of the host computer of the cable transfer unit is used to introduce the signal into the connecting unit 2, so that each contact point of the cable to be tested is introduced into the test channel. The human-computer interaction unit of the test control module 1 issues test instructions, and the central control unit processes the instructions from the human-computer interaction unit and transmits them to the test voltage generation unit and the relay switch control unit. The relay switch control unit completes the switching of the corresponding relay according to the instruction, and the test voltage generation unit generates the corresponding current and voltage according to the received instruction and transmits it to the signal introduction connection unit. The test circuit unit sends the measured resistance data to the data processing unit, and the data processing unit generates a test report after interpreting the data and sends the test report to the data storage unit and the human-computer interaction unit.

尽管上文对本发明的具体实施方式给予了详细描述和说明，但是应该指明的是，我们可以依据本发明的构想对上述实施方式进行各种等效改变和修改，其所产生的功能作用仍未超出说明书及附图所涵盖的精神时，均应在本发明的保护范围之内。Although the specific embodiments of the present invention have been described and illustrated in detail above, it should be pointed out that we can make various equivalent changes and modifications to the above-mentioned embodiments according to the concept of the present invention, and the functional effects produced by it are still the same. Anything beyond the spirit covered by the specification and drawings shall be within the protection scope of the present invention.