Need High Precision High Accuracy Gyrometer/ 3 axis gyrometer

Hi,

  1. I have a huge metal block which rotates clockwise as well as anticlockwise. The speed of movement is not so high. However there is a huge shock which passes through the block sometimes.

  2. I need to measure the amount of angular movement in degrees of the metal block be it clockwise or anticlockwise.

  3. The accuracy I require is very high i.e. of the order of less than 5 minutes(1 degree/12). Also a high precision level is required.

  4. The cost limit onto me is Rs 50,000/- or less than $800 dollars.

Any help will be appreciated. Thanks.

For long term accuracy of 0.1 degree you need a fiber optic gyro, but you certainly won’t get one that cheaply.
Examples: http://www.emcore.com/fiber-optics/defense-homeland-security/fiber-optic-gyroscopes-fog/