laser range finder to gyroscope conversion

[Jamie Morken]

Hi,

I was just wondering if it is possible to take apart a
laser range finder and connect the laser to the input of
a fiberoptic coil and then connect the output of the coil
to the rangefinder photodiode? If the coil length is
100 meters, and it is rotating in the direction of the
light travel then the reported distance measurement should be
proportionately less? Or is it the frequency of the light that
will change? In that case using a phase comparator range finder
would work I guess?

cheers,
Jamie

 

[Rich Webb]

Hi,

I was just wondering if it is possible to take apart a
laser range finder and connect the laser to the input of
a fiberoptic coil and then connect the output of the coil
to the rangefinder photodiode? If the coil length is
100 meters, and it is rotating in the direction of the
light travel then the reported distance measurement should be
proportionately less? Or is it the frequency of the light that
will change? In that case using a phase comparator range finder
would work I guess?

See http://en.wikipedia.org/wiki/Fiber_Optic_Gyro and related links.