| 摘要 |
A tire pressure is measured by an electrical strain gage and a telemetering transmitter micro chip process and transmitter signal from a motor vehicle tire, indicating an abnormal tire pressure range. The above described tire pressure indicator includes a pressure tight bellows container which is preloaded to a selected gas pressure, and which contains the strain gage, telemetering signal transmitter and a battery power source. The tire pressure indicator is secured and disposed in the tire interior, mounted on the tire air pressure valve stem. A simple signal receiver warns of abnormal tire pressure, receiving the transmitted signal from any tire pressure indicator disposed in a single vehicle tire set.
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