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实用新型
CN206975119U 具有电压电流保护的火工品电阻测试仪 有权

具有电压电流保护的火工品电阻测试仪
摘要：
本实用新型公开了一种具有电压电流保护的火工品电阻测试仪，它包括微处理器、阻值已知的固定精密电阻Rs、待测火工品Rx和继电器；阻值已知的固定精密电阻Rs与待测火工品Rx串联形成测试回路；阻值已知的固定精密电阻Rs与待测火工品Rx之间设置继电器；微处理器通过连接可编程电位器控制恒流源电路向测试回路输入电流，并且微处理器通过连接继电器驱动电路控制继电器的断开与连接；阻值已知的固定精密电阻Rs与待测火工品Rx分别通过在其两端连接信号调理电路1与信号调理电路2和微处理器信号连接。本实用新型的火工品电阻测试仪具有多种安全保护措施，各个安全保护措施相互补充，能够确保火工品在测试电阻值时的安全性。
摘要（英）：

The utility model discloses a priming sytem resistance meter with protection of voltage electric current, it includes fixed precision resistor rs that microprocessor, resistance are known, priming sytem rx and relay await measuring, the known fixed precision resistor rs of resistance establishes ties with the priming sytem rx that awaits measuring and forms test loop, the known fixed precision resistor rs of resistance and await measuring and set up the relay between the priming sytem rx, microprocessor is through connecting potentiometer control constant -current source circuit able to programme to test loop arrival current to the disconnection of microprocessor through connecting the relay drive circuit control relay with be connected, the known fixed precision resistor rs of resistancewith await measuring priming sytem rx respectively through be connected signal conditioning circuit 1 and signal conditioning circuit 2 and microprocessor signal connection at its both ends. The utility model discloses a priming sytem resistance meter has multiple safety precautions, and each safety precautions supplyes each other, can ensure the security of priming sytem when the test resistancevalue.

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