SENSOR SYSTEM

摘要

The invention provides apparatus having a sensor system for providing sensor information for a monitoring, control or other operating function of the apparatus. The sensor system comprises: a transducer ( 16 ) adapted to be responsive to a predetermined environmental characteristic of the apparatus for providing an electrical output, and means ( 18 ) adjacent to the transducer to accentuate the said characteristic. At least one sensor ( 20 ) is arranged to be operated by power derived from the electrical output for generating a detection signal, and means ( 38, 40 ) arranged to be operated by power derived from the electrical output and responsive to the detection signal are also provided for communicating sensor information to a processing unit remote from the sensor system and associated with the said function.