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Engineering > Electricals Fresher’s Question !?
A temperature transducer has a transfer function of 0.15 mV/Celsius. The output signal is amplified and fed to a chart recorder with a sensitivity of 5mm/V. What is the required gain of the amplifier if a 10 degree Celsius temperature change on the thermocouple is to give a 10 cm deflection on the chart recorder pen ?
10 degree celsius = 10 cm deflection
1cm/degree
( .00015 V/celsius X .5cm / V) x K =1 cm/celsius
solve for K where K gain of amplifier