| 摘要 |
Apparatus for monitoring a parameter associated with a structural component comprises a module ( 1 ) which is attachable to the structural component and which is associated with a sensor ( 2 ) for making measurements of said parameter. The module incorporates a power supply ( 7 ) for powering the apparatus; a memory ( 4 ) for storing data from the sensor, and a processor ( 3 ) to process measurement signals from the sensor ( 2 ) and to store data in said memory ( 4 ). A display ( 5 ) for displaying measurements made by the sensor ( 2 ) may also be provided. The processor may make use of an algorithm such as a rainflow counting algorithm to reduce data stored. For energy saving, the sensor ( 2 ) is only powered on as required to take a measurement. The sensor ( 3 ) is interfaced to the processor through a signal processing subsystem ( 6 ) consisting of an amplifier and A to D converter, and each is turned on and off as required to power the sensor ( 2 ) for measuring. A sensor such as a tilt-switch ( 8 ) may also be used to control powering of the sensor ( 2 ). A communication link allows downloading of data from the memory, and recharging of the battery ( 7 ). Alternatively, the memory ( 4 ) and battery ( 7 ) are incorporated in a unit which is removable from the apparatus so that the data in the memory can be processed elsewhere.
|
