Chapter 03B - Instr Characteristic

# Chapter 03B - Instr Characteristic - STATIC CHARACTERISTICS...

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STATIC CHARACTERISTICS Example 2: Pressure sensor A with a value of 2 bar aused a deviation of 10 degrees caused a deviation of 10 degrees. Therefore, the sensitivity of the equipment is 5 degrees/bar. ± Sensitivity of the whole system is (k) = k 1 x k 2 x k 3 x . . x k n k 1 k 2 k 3 θ i θ o Dr. Abdirahman CHAPTER 3 Page 18 of 30

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xample: STATIC CHARACTERISTICS Example: Consider a measuring system consisting of a transducer, amplifier and a recorder, with sensitivity for each equipment given below: Transducer sensitivity 0.2 mV/ ° C Amplifier gain 2.0 V/mV Recorder sensitivity 5.0 mm/V Therefore, Sensitivity of the whole system: (k) = k 1 x k 2 x k 3 k = 0.2 mV x 2.0 V x 5.0 mm ° C mV V Dr. Abdirahman CHAPTER 3 Page 19 of 30 k = 2.0 mm/ ° C
Example : The output of a platinum resistance thermometer (RTD) is as follows: Input( ° C ) Output(Ohm) 00 100 200 200 400 300 600 400 800 Calculate the sensitivity of the equipment. Answer : raw an input versus output graph From that Draw an input versus output graph. From that graph, the sensitivity is the slope of the graph.

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## This note was uploaded on 05/09/2010 for the course CHE 3022 taught by Professor Abdirahman during the Fall '07 term at National Central University.

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Chapter 03B - Instr Characteristic - STATIC CHARACTERISTICS...

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