| 摘要 |
<p>A disposable fluid level sensor is disclosed for determining the level of fluid in a container (12). A flex circuit sensor (16) is coupled to a processing module (20) having a power supply, the flex circuit sensor being mounted at a selectable location by an adhesive patch which holds the sensor flush against the container. The processing module hangs from the flex circuit, and provides a human perceptible indication, such as a flashing light (32) or an audible alarm (34), when the fluid level drops below a desired point as determined by the sensor. The sensor detects the change in fluid level by transmitting an electromagnetic signal and determining whether there is a change in reflected energy.</p> |
