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  2. Variable reluctance sensor - Wikipedia

    en.wikipedia.org/wiki/Variable_reluctance_sensor

    A VR sensor used as a simple proximity sensor can determine the position of a mechanical link in a piece of industrial equipment. A crankshaft position sensor (in an automobile engine) is used to provide the angular position of the crankshaft to the engine control unit. The engine control unit can then calculate engine speed (angular velocity).

  3. Proximity sensor - Wikipedia

    en.wikipedia.org/wiki/Proximity_sensor

    An infrared proximity sensor Optical proximity sensor in a 2016 Samsung smartphone.A proximity sensor is a standard feature of most smartphones, disabling the touchscreen when positioned near an ear during phone calls; more recent (late 2019-early 2020) smartphones with OLED displays may have the sensor mounted under the display.

  4. Robotic sensors - Wikipedia

    en.wikipedia.org/wiki/Robotic_sensors

    Proximity: Non-contact detection of an object. Sensors can measure physical properties, such as the distance between objects, the presence of light and the frequency of sound. [3] They can measure: Object Proximity: The presence/absence of an object, bearing, color, distance between objects. Physical orientation. The co-ordinates of object in ...

  5. Hall effect sensor - Wikipedia

    en.wikipedia.org/wiki/Hall_effect_sensor

    Hall sensors are used for proximity sensing, positioning, speed detection, and current sensing applications [1] and are common in industrial and consumer applications. Hundreds of millions of Hall sensor integrated circuits (ICs) are sold each year [ 2 ] by about 50 manufacturers, with the global market around a billion dollars .

  6. Proximity card - Wikipedia

    en.wikipedia.org/wiki/Proximity_card

    A proximity card or prox card [1] also known as a key card or keycard is a contactless smart card which can be read without inserting it into a reader device, as required by earlier magnetic stripe cards such as credit cards and contact type smart cards. [2] The proximity cards are part of the contactless card technologies.

  7. SENT (protocol) - Wikipedia

    en.wikipedia.org/wiki/SENT_(protocol)

    The SAE J2716 SENT (Single Edge Nibble Transmission) protocol [1] is a point-to-point scheme for transmitting signal values from a sensor to a vehicle controller. It is intended to allow for transmission of high resolution data with a low system cost.

  8. ISO/IEC 15693 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_15693

    ISO/IEC 15693, is an ISO/IEC standard for vicinity cards, i.e. cards which can be read from a greater distance as compared with proximity cards.Such cards can normally be read out by a reader without being powered themselves, as the reader will supply the necessary power to the card over the air (wireless).

  9. Position sensor - Wikipedia

    en.wikipedia.org/wiki/Position_sensor

    A position sensor is a sensor that detects an object's position. A position sensor may indicate the absolute position of the object (its location) or its relative position (displacement) in terms of linear travel, rotational angle or three-dimensional space. Common types of position sensors include the following: Capacitive displacement sensor