11.   The seismic waves cause the frame to move by a few micrometers, and an optical sensor detects the relative motion between frame and plate.

12.   The recognition devices typically judge the genuineness of coins by examining magnetic fields to determine alloys and optical sensors to check looks.

13.   With an optical sensor that detects changes in the weight stack, it offers electronic companionship and pointers.

14.   Russian officials feared that small chunks of frozen fuel might damage critical optical sensors on a Soyuz capsule attached to the orbiting outpost.

15.   They had feared that small chunks of frozen fuel might damage critical optical sensors on a Soyuz capsule attached to the orbiting outpost.

16.   They feared that small chunks of frozen fuel might damage optical sensors on a Soyuz capsule attached to the orbiting outpost.

17.   The team has also carried out other experiments, such as stimulating the cockroach by an optical sensor and another system using heat.

18.   The optical sensor developed by the CNES will observe solar light reflected by aerosols, clouds, oceans and land surfaces.