Question

What instrument is used to amplify output signal of transducer

• A. Peaking amplifier
• B. Instrumentation amplifier
• C. Differential amplifier
• D. Bridge amplifier

Hint:

Amplifying Transducer Signals. Instrumentation amplifiers provide high input impedance, high CMRR, and precise gain, making them suitable for amplifying small, often differential, signals from sensors/transducers in noisy environments.

Answer 1

The Correct Option is B

Transducers often produce small output signals (voltage or current changes) that may be differential and subject to common-mode noise
An instrumentation amplifier is a type of differential amplifier specifically designed for such applications
It features high input impedance (minimizing loading effects on the transducer), high Common-Mode Rejection Ratio (CMRR) to reject noise common to both inputs, low DC offset, and precise, adjustable gain
These characteristics make it ideal for accurately amplifying low-level signals from transducers in measurement and control systems
While a differential amplifier is a core component, an instrumentation amplifier offers superior performance tailored for transducer signal conditioning