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A thermocouple gives an output of 0.2 mV for each degree change in temperature. What will be the word length required when its output passes through an analogue-to-digital converter if temperatures from
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A thermocouple gives an output of 0.2 mV for each degree change in temperature. What will be the word length required when its output passes through an analogue-to-digital converter if temperatures from 0 to 1000 oC are to be measured with a resolution of 0.5 oC?

User Scusyxx
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9514 1404 393

Answer:

11 bit

Step-by-step explanation:

The number of resolution units required is ...

(1000 °C -0 °C)/(0.5 °C) = 2000

log2(2000) = 10.97, so an unsigned word length of 11 bits is the minimum required.

User Stevenson
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