The motion of a hydraulic ram is to be recorded using a potentiometer displacement sensor connected to a recorder. The potentiometer is 25 cm long and has linear resistance dis- placement...


The motion of a hydraulic ram is to be recorded using a potentiometer displacement sensor connected to a recorder. The potentiometer is 25 cm long and has linear resistance dis- placement characteristics. A set of potentiometers with maximum power rating of 5 W and resistance values ranging from 250 to 2500 Ω in 250 Ω steps is available. The recorder has a resistance of 5000 2 and the non-linear error of the system must not exceed 2% of full scale. Find: (a) (b) the maximum potentiometer sensitivity that can be obtained; the required potentiometer resistance and supply voltage in order to achieve maximum sensitivity

Aug 30, 2022
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