|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 78 인용 특허 : 30|
A liquid level sensing arrangement using a probe uses a baseline probe circuit characteristic, e.g., a circuit resistance or voltage, that is measured when the probe is out of contact with the liquid in the tank. The baseline characteristic may be used to determine a liquid level in the tank, e.g., a determination whether the liquid level is below or at/above the probe. In one embodiment, the baseline characteristic may be compared to a circuit characteristic that is measured as the tank is being filled. A difference between the baseline characteristic ...
What is claimed is: 1. A method for determining a level of a liquid in a tank, comprising: providing a tank in which a liquid level is variable; measuring a baseline characteristic of a probe circuit including a probe associated with the tank while the probe is out of contact with the liquid in the tank; starting a filling of the tank from a level at which the probe is out of contact with the liquid; measuring a first characteristic of the probe circuit after measuring the baseline characteristic and during filling of the tank; determining the liquid le...