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Sensor for measuring Spin Rate/Angle & Velocity/Angle

Former Member

Hello All,

 

I have an application which requires a sensor to measure spin rate/angle and velocity/angle.  The spin rate can be anything from -6000 to 90000°/s  and the velocity anything up to 200mph.  I do not need to measure this over a period of time, just an instantaneous reading at a point in time.  The sensor would also need to measure the spin axis as well as the velocity in the X, Y & Z axes (or just the velocity and some way of determining the angular direction).  I have looked at MEMS Gyroscopes/Accelerometers but there does not seem to be anything out there that measures high enough values.  I have been advised that a "resolver to digital device" may work but am not entirely sure what these measure.  Can anyone please offer any assistance as to what may be a suitable product?

 

Many Thanks

 

Andy.

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    Hi Andy,

     

    You might want to consider building a software Integrated Navigation System (INS) and use the MEMS accelerometer.  You can set up the INS to sample the changes in all three axis and maintain the running spinrate and veleocities internally.  You compensate for the devices limited measurement space by sampling the data more often.  You can run some calculations to see where your sampling can keep ahead of your objects dynamic rotations.  You might need a DSP to crank the numbers in real time, but you should be able to meet your design goals.

     

    Good luck,

    DAB

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  • 0

    Hi Andy,

     

    You might want to consider building a software Integrated Navigation System (INS) and use the MEMS accelerometer.  You can set up the INS to sample the changes in all three axis and maintain the running spinrate and veleocities internally.  You compensate for the devices limited measurement space by sampling the data more often.  You can run some calculations to see where your sampling can keep ahead of your objects dynamic rotations.  You might need a DSP to crank the numbers in real time, but you should be able to meet your design goals.

     

    Good luck,

    DAB

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