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a mechanical device sensitive to light, temperature, radiation level, or the like, that transmits a signal to a measuring or control instrument.
a sense organ.
anything, such as a photoelectric cell, that receives a signal or stimulus and responds to it

sensor sen·sor (sěn’sər, -sôr’)

A device, such as a photoelectric cell, that receives and responds to a signal or stimulus.

See sense organ.

An electronic device used to measure a physical quantity such as temperature, pressure or loudness and convert it into an electronic signal of some kind (e.g a voltage). Sensors are normally components of some larger electronic system such as a computer control and/or measurement system.
Analog sensors most often produce a voltage proportional to the measured quantity. The signal must be converted to digital form with a ADC before the CPU can process it.
Digital sensors most often use serial communication such as EIA-232 to return information directly to the controller or computer through a serial port.


Read Also:

  • Sensori-

    sensori- pref. Sensory: sensorimotor.

  • Sensoria

    noun, plural sensoriums, sensoria [sen-sawr-ee-uh, -sohr-] /sɛnˈsɔr i ə, -ˈsoʊr-/ (Show IPA) 1. a part of the brain or the brain itself regarded as the seat of sensation. 2. the sensory apparatus of the body. noun (pl) -riums, -ria (-rɪə) 1. the area of the brain considered responsible for receiving and integrating sensations from the […]

  • Sensorial

    adjective 1. of or relating to the senses or sensation. 2. Physiology. noting a structure for conveying an impulse that results or tends to result in sensation, as a nerve. adjective 1. of or relating to the senses or the power of sensation 2. of or relating to those processes and structures within an organism […]

  • Sensorimotor

    [sen-suh-ree-moh-ter] /ˌsɛn sə riˈmoʊ tər/ adjective 1. Psychology. of or relating to motor activity caused by sensory stimuli. Compare ideomotor. 2. Physiology. both sensory and motor, as parts of the cerebral cortex. sensorimotor /ˌsɛnsərɪˈməʊtə/ adjective 1. of or relating to both the sensory and motor functions of an organism or to the nerves controlling them […]

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