Question
can you answer the following? The system in the previous problem is used to amplify a signal from a sensor located in an oil well
can you answer the following?
The system in the previous problem is used to amplify a signal from a sensor located in an oil well at a temperature of 500 C. The sensor has a source resistance of 2 k and it produces a signal of 0.5 mVrms.
(a) What is the thermal noise voltage density from the sensor in Vrms/sqrt(Hz)? Express your answer in scientific notation with 2 decimal places (that is, something like 1.23E-4).
(b) What is the noise voltage due to the sensor at the system output in Vrms? Express your answer to 2 decimal places.
(c) What is the total noise voltage from the sensor and the amplifier at the system output in mVrms? (Hint: remember that uncorrelated noises are added as power.) ? Express your answer to 2 decimal places.
(d) What is output SNR of this system in dB? Express your answer to 2 decimal places.
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