A millivolt meter is an electronic instrument used to measure small voltages in the millivolt range. It is designed to be highly sensitive and accurate, capable of measuring voltage changes as small as one millivolt. Millivolt meters are commonly used in scientific research, engineering, and electronics applications where precise voltage measurements are required. The basic design of a millivolt meter consists of a sensitive input circuit, a signal amplifier, and a digital display or analog meter. The input circuit is designed to be low impedance and high sensitivity, allowing it to measure small voltage changes without introducing additional noise or distortion. The signal amplifier then amplifies the voltage signal to a level that can be displayed on the meter. There are two main types of millivolt meters: digital and analog. Digital millivolt meters use an analog-to-digital converter to convert the voltage signal into a digital value that can be displayed on a digital screen. Analog millivolt meters use a needle or pointer to indicate the voltage level on a scale. Millivolt meters are used in a wide range of applications, including temperature sensing, strain gauges, and thermocouples. They are also used in the testing and calibration of electronic equipment, as well as in the measurement of small signals in biomedical research.
electronic, voltage, sensitivity, amplifier, measurement
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