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Bolometer

Bolometer: Bolometric measurements are based on the dissipation of RF power in a small temperature sensitive resistive element, called a Bolometer. This bolometer may be a short ultra thin wire…

Data Logger Operation: Data Logger Operation - For proper understanding of a Data Logger Operation, it is essential to understand the difference between analog and digital signals. For example, measurement…

Sensitivity Measurement Definition

Sensitivity Measurement Definition: The Sensitivity Measurement Definition of a radio receiver is its ability to amplify weak signals. It is often defined in terms of the voltage that must be…

Transistor Chopper Circuit

Transistor Chopper Circuit: Transistor Chopper Circuit - A single transistor used as a dynamic switch to convert low level dc signal to an ac waveform is shown in Fig. 14.34.…

Instrumentation Amplifier Circuit

Instrumentation Amplifier Circuit: The schematic diagram of an Instrumentation Amplifier Circuit constructed with dc opamps and consisting of general features is shown in Fig. 14.23 (a). Many of the input…

Integrator using Op Amp

Integrator using Op Amp: An Integrator is a circuit that performs the mathematical operation of integration because it produces an output voltage that is proportional to the integral of the…

What is an Operational Amplifier?

What is an Operational Amplifier?: An Operational Amplifier is a dc amplifier having a high gain, of the order of 104 - 108. Such an amplifier can perform summing, integration,…

Signal Conditioning System

Signal Conditioning System: Signal Conditioning System - The measurand, which is basically a physical quantity, is detected by the first stage of the instrumentation or measurement system. The first stage…