发明名称 |
Sensor for fluid level - uses electrically heated thermistor with sudden change from high to low resistance at temperature rise |
摘要 |
<p>A level sensor for producing a warning signal if the brake fluid for motor cars drops below a danger level consists of an electrical heating element (22) which is coupled by a heat transmitting connector (27) to a resistor (24). The latter is made of a material which suddenly changes from a high to a low resistance at a certain temperature. The sensor is attached by the fitting (26) to the brake fluid container. The preferred material for the resistor (24) is Ti3O5 which has a transition temperature of 165 deg.C. This eliminates the high temperature rise required by ordinary thermistors and has a desirable self-locking effect once a dropping fluid level has caused it to respond.</p> |
申请公布号 |
DE2443917(A1) |
申请公布日期 |
1976.04.01 |
申请号 |
DE19742443917 |
申请日期 |
1974.09.13 |
申请人 |
AMP INC. |
发明人 |
KAHN,DAVID |
分类号 |
G01F23/24;(IPC1-7):01F23/24;60T11/26 |
主分类号 |
G01F23/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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