| 摘要 |
<p>A scanning device adapted rapidly to inspect large areas of pipework for apparent defects and to produce an electrical signal representative of a physical characteristic of a pipe wall and comprising a glove (10) to which is attached a flexible pad (11) in which is embedded an array of four ultrasonic sensors (12) with leads (13) connected to a junction box (14) strapped to the glove at (16) and having an output lead (15) to transmit signals to a remote monitor, and an alarm LED (17) on the junction box (14). The device enables an operator wearing the glove to manipulate the fingers to ensure uniform contact with the outer surface of a pipe. Signals are transmitted by the sensors (12) through the pipe wall and defected from the internal surface thereof to provide a time based signal giving a reading of instantaneous wall thickness beneath the fingers. This reading is transmitted to the remote monitor to indicate an apparent defect which then may be marked and later inspected by more precise and accurate equipment.</p> |
