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Controller design for the interfacing of sensor and actuating element in closed loop is the most important part for process control researchers. For effective closed control system, the researchers were proposed various control algorithms and analyze the response in closed loop environment. In general, sensor output signal range is (4-20) mA and actuator input signal is (4-20) mA. In market data acquisition systems (DAQ) are available to acquire and generate signals in the range of (-10 to +10) V. It is highly need to convert the sensor output range of (4-20) mA to the range of (1-10) V to send signal to computer through DAQ and vice versa. For converting both input and output signal to the required range, the researchers have to design an appropriate electronic circuit with necessary components [1-7]. Many researchers are working directly on inbuilt real time interfaced process station. So, there is no need for them to design interfacing circuit. This lacks the researchers’ knowledge in electronic circuit design for interfacing and some are interested in designing those circuit are facing problem due to availability of circuit components. This paper proposed a simple method to map the input and output signal using simple electronic circuit. |
