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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||340/4503 ; 340/622 ; 73/290R ; 73/295|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 4 인용 특허 : 2|
A device for electrically measuring the oil level of a machine, particularly of an internal combustion engine, is connected with a device for temporarily blocking re-measurement. The device for the measurement of the oil level comprises a measurement probe (2) which is heated by a constant current during a connect time which is commenced in an automotive vehicle by a switch on a battery terminal (15). Furthermore, means are provided for comparing an initial voltage UO of the measurement probe at the start of the connect time with a measured voltage at th...
In a device for temporarily blocking re-measurement of an electric oil measurement of a machine, having a measurement probe which is heated by a constant current during a connect time which is commenced by a switch for placing the machine in operation, means for comparing an initial voltage on the measurement probe at a start of the connect time with a later measurement voltage at the end of the connect time of a measurement period, a signaling logic controllable as a function of the result of the comparison in order to signal the oil level, and a blocki...