公开(公告)号：US4512179A

公开(公告)日：1985-04-23

申请号：US546739

申请日：1983-10-28

申请人： Don G. Umble ,  Tsi-Pin Choong ,  Kenneth R. Izzo ,  Charles E. Burdg ,  Gary H. Hankin ,  Charles A. Dalke

发明人： Don G. Umble ,  Tsi-Pin Choong ,  Kenneth R. Izzo ,  Charles E. Burdg ,  Gary H. Hankin ,  Charles A. Dalke

IPC分类号： G01L27/00

CPC分类号： G01L27/005

摘要： A microprocessor controls pressure transducer testing, calibration, and adjustment. A transducer or unit under test (UUT) receives a fluid pressure signal from a test line, and outputs a corresponding electrical signal. A test pressure is output from a fluid pressure module which is connected to the UUT. A human operator is interrogated by the microprocessor based control unit as to (1) identifying details about the desired pressure UUT to be tested, and (2) the anticipated electrical range to be encountered in reply to an applied test pressure. The microprocessor then sequentially generates electrical output signals which are sent to the test lines to generate the test pressure pulses from a fluid pressure supply. The pressure test pulses are delivered to the UUT. As the UUT receives the sequence of pressure test pulses, the microprocessor records the output electrical signals generated by the UUT, and compares them to an internal reference pressure transducer output. Display of the results occurs with preferably the percent error calculated at each step. Provision for pressure transducer UUT calibration is made by providing the calibration instrument with the ability to issue tonal and visual signals in response to UUT adjustments, thus providing sense and amount of adjustments of the zero point and span range of the transducer under test.

摘要翻译： 微处理器控制压力传感器测试，校准和调整。 传感器或被测单元（UUT）从测试线接收流体压力信号，并输出相应的电信号。 从连接到UUT的流体压力模块输出测试压力。 操作人员由基于微处理器的控制单元进行询问，以便（1）识别关于要测试的所需压力UUT的细节，以及（2）应答应用的测试压力时遇到的预期电气范围。 然后微处理器顺序地产生电输出信号，其被发送到测试线以从流体压力源产生测试压力脉冲。 压力测试脉冲被传送到UUT。 当UUT接收到压力测试脉冲序列时，微处理器记录由UUT产生的输出电信号，并将其与内部参考压力传感器输出进行比较。 结果的显示优选地在每个步骤计算出的百分比误差。 压力传感器的设置通过为校准仪器提供响应于UUT调整的色调和视觉信号的能力，进行校准，从而提供对被测换能器的零点和量程范围的检测和量的调整。