When applied to the car, the team used a simple photo sensor that could tell when the solutions changed color, at which point the cars power would shut off by cutting the circuit.
12.
Kingdome staff dispute part of the report, particularly a section that says all eight smoke detectors, eight heat detectors and two photo sensors in the Kingdome cupola are worn out, don't work and need to be replaced.
13.
In the industrial automation sector, Sumber Engineering Trading ( M ) Sdn Bhd will introduce products by Balluff which are encoders, photo sensors, proximity sensors, identification system and linear displacement transducers, its sales executive Louis Chai said.
14.
Trimpin has invented a gamelan whose iron bells are suspended in air by electronic magnets; a photo sensor prevents them from rising past a certain point, and since they don't touch anything, once rung they will sound with a phenomenally long decay.
