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Results 4921 - 4930 of 4974 for Signal
  • Motion Detectors - Working Principles and Applications
    Article - 5 Jun 2015
    Motion can be detected through various means such as infrared, sound, and vibration. Motion detectors are primarily used for detecting moving objects (especially people), and gathering data regarding...
  • What is a Level Sensor?
    Article - 25 Sep 2014
    A level sensor is a device for determining the level or amount of fluids, liquids or other substances that flow in an open or closed system. There are two types of level measurements, namely,...
  • Exhaust Gas Temperature Gauges
    Article - 2 Dec 2013
    An exhaust gas temperature (EGT) gauge is a meter used for measuring the exhaust gas temperature of an internal combustion engine in combination with a thermocouple-type pyrometer.
  • The Working Principle and Applications of Infrared Thermometers
    Article - 11 Jun 2015
    An infrared thermometer is a device that measures the infrared radiation – a type of electromagnetic radiation below the visible spectrum of light - emitted by an object.
  • Pyrometers - A Different Class of Thermometers
    Article - 9 Oct 2013
    Broadly speaking, pyrometers belong to a class of thermometers that are used for measuring only high temperatures. However, today they have been modified to measure low temperatures as well.
  • What are Fiber Optic Sensors?
    Article - 12 Sep 2014
    Fiber optic sensors are fiber-based devices that use optical fibers to detect certain quantities such as mechanical strain or temperature, concentrations of chemical species, acceleration, rotations,...
  • Comparing Non-Contact Sensors: Capacitive vs. Eddy-Current Sensors
    Article - 7 Oct 2013
    Noncontact sensors using capacitive and eddy-current technologies each represent a unique blend of advantages and disadvantages for a variety of applications.
  • What is a Photoelectric Sensor?
    Article - 18 Sep 2014
    A photoelectric sensor is an instrument designed to detect the distance, absence, or presence of an object by using a light transmitter such as an infrared, and a photoelectric receiver. It is also...
  • What is a Tachometer?
    Article - 1 Nov 2013
    A tachometer is a device for measuring the rotation speed of an object such as the engine shaft in a car. It basically indicates the revolutions per minute (RPM) performed by the object. It is also...
  • Capacitive and Eddy-Current Measurement Solutions for Condition Monitoring
    Article - 9 Aug 2013
    For condition monitoring, shaft runout is a common measurement. Eddy-current and capacitive sensors offer useful non-contact measurement solutions with distinct advantages and disadvantages.

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