| 摘要 |
<p>A transducer for detecting, and permitting measurement of, ambient pressure and/or temperature, and comprising a light emitting device (10) and a light receiving device (11), disposed side-by-side within a module (15) with an opaque screen (14) between the devices (10, 11) and a light-reflecting surface (19) facing same whereby only the reflected light can reach the light-receiving device, the light-reflecting surface being mounted on a flexible diaphragm (18) such that deformation of the diaphragm as a result of a change in ambient conditions causes a change in the amount of light reflected, so that this change can be detected and displayed. </p> |
