Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Solid-State Inclinometer

  1. Nov 19, 2005 #1

    dduardo

    User Avatar
    Staff Emeritus

    Anyone know of a good and cheap single axis solid-state inclinomter? I want to interface the sensor with a microprocessor in order to know what angle a lcd panel has been rotated so I may adjust to portrait or landscape mode.
     
  2. jcsd
  3. Nov 19, 2005 #2

    FredGarvin

    User Avatar
    Science Advisor

    I don't know of any "cheap" ones with a data output. You might try Starett or Omega.
     
  4. Nov 19, 2005 #3

    dduardo

    User Avatar
    Staff Emeritus

    Apple has built an inclinometer into their PowerBooks and people have actually used as an input device to orient the windows depending on how the person is viewing the lcd.

    http://en.wikipedia.org/wiki/Sudden_Motion_Sensor

    The microcomputer that i'm using is the Gumstix and it very small (Literally the size of a stick of gum) therefore I need small components. I would think the solid-state route would be best in this senario.
     
  5. Nov 20, 2005 #4

    dduardo

    User Avatar
    Staff Emeritus

    I found the part I needed. It is the ADXL322 from Analog Devices.

    http://www.analog.com/en/prod/0,2877,ADXL322,00.html

    "The ADXL322 is an ultra small package (4 x 4 x 1.45 mm LFCSP) and low power (340 µA at Vs = 2.4V) ± 2g iMEMS® Accelerometer designed to accomodate the integration requirements of mobile phones and other portable devices for a variety of motion, tilt, and inertial sensing features (e.g., data entry, menu and display control, power management, situational awareness, navigation, and portrait vs. landscape display orientation). The ADXL322 also enables hard disk drive protection systems and security features in notebook computers, as well as position and tilt sensing for PC and gaming peripherals such as mouse and joystick devices."

    It is also cheap: $8.33 at digikey
     
  6. Nov 20, 2005 #5
    Analog is usually pretty good about selling in small quantities. I bet you could save a few bucks by getting them from Analog instead of digikey.

    Here's and EDN article on accelerometers.
    http://www.edn.com/article/CA472836.html
     
  7. Nov 21, 2005 #6

    FredGarvin

    User Avatar
    Science Advisor

    Ahhh....so it's not an inclinometer per-se. It is a great use of accelerometers though. You learn something new every day.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Solid-State Inclinometer
  1. SPDT Solid-state Relay (Replies: 3)

  2. Solid State Tesla Coil (Replies: 4)

  3. Solid state relay (Replies: 8)

  4. Solid State Switch (Replies: 7)

Loading...