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    There are five basic types of sensors


    Posts : 20
    Join date : 2009-09-13
    Age : 32
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    There are five basic types of sensors

    Post by LoRdBOy on Sun Sep 27, 2009 6:05 am

    There are five basic types of sensors

    Gage pressure sensors - With gage sensors, pressure readings are
    referenced to the atmosphere. That is, zero output is at atmospheric pressure.
    You use this type of sensor when you need to measure both vacuum (negative
    output) and pressure (positive output).

    Vacuum pressure sensors - A vacuum sensor's
    output is zero at atmospheric pressure, like the gage sensor, but the output
    increases as vacuum increases. You calibrate vacuum sensors so their output
    becomes more positive as the pressure becomes more negative.

    Differential Pressure Sensors - This type of sensor
    has two pressure ports, as shown in Figure 1, and senses the difference in
    pressure between the two ports. You can use differential pressure sensors to
    measure the pressure of liquids or gasses.

    Absolute Pressure Sensors - The reference for this
    type of sensor is full vacuum. That is, the output is zero at full vacuum. Note
    that there is no polarity change when the input pressure changes from vacuum to
    pressure above atmosphere.

    Barometric pressure sensors - Barometric pressure
    sensors are absolute pressure sensors with a limited range. Usually, the output
    of these sensors is expressed as "inches of Mercury (Hg)," and the
    output ranges are 16-32-in. HgA or 26-32-in. Hg with zero output at the low
    number. A standard "absolute" sensor may be used over 0-30-in. HgA
    range, but the limited range offers more resolution, especially with a voltage
    output for the typically small barometric pressure changes. You may use several
    different types of pressure transducers in a typical engine test stand. [/LEFT



    Re: There are five basic types of sensors

    Post by Guest on Mon Oct 19, 2009 10:32 pm

    thank's my brother
    Talib Al_Munawri
    Talib Al_Munawri

    Posts : 337
    Join date : 2009-07-03
    Age : 31
    Location : Sultanate of Oman

    Re: There are five basic types of sensors

    Post by Talib Al_Munawri on Fri Dec 04, 2009 9:14 pm


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    Re: There are five basic types of sensors

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