A signal generated from a meter, for example, which can drive a recorder, an external display, or a controlling device such as a heater, motor, etc. Analog signals used for such purposes are typically 4-20mA , 1-5Vdc, or similar ranges.
A voltage or current signal that is a continuous function of the measured parameter.
Lets you connect your MD player to any component with an analog input, such as a receiver or cassette deck. For home MD decks, the analog output is stereo RCA, while for portables it's a stereo minijack.
A sensor output that varies over a range of voltage (or current) and is proportional to some sensing parameter (as opposed to a digital output). The output of an analog photoelectric sensor is proportional to the strength of the received light signal. The output of an analog ultrasonic proximity sensor is proportional to the distance from the sensor to the object returning the sound echo.
A continuously variable output quantity that represents an input.