Patent ID: 6263733
Filing Date: 2001-07-24
Classification: G01P

Abstract:
An acceleration sensor comprising:a volume of compressible material, said material permitting the passage of light generally freely therethrough while substantially fully scattering light transmitted within said material;a source of wave energy comprising light in operative communication with said volume of compressible material for transmitting light into said volume to form a region therein of substantially scattered wave energy;support means for supporting said compressible material;passive compression means for compressing said compressible material against said support means in response to acceleration of said sensor for causing an increase in in intensity of said wave energy within said region;a receiver for detecting the intensity of light within said region of scattered wave energy;signal processing means in operative communication with said receiver for detecting the intensity of wave energy within said region of compressible material and providing a selected output in response to acceleration detected by said sensor.