Patent ID: 9354135
Filing Date: 2016-05-31
CPC Classification: G01M

Claim Text:
1. An oil leak detection device, comprising: a base film layer configured in a tape form; a first polymer line and a second polymer line which are formed on a top surface of the base film layer in parallel in a length direction; a first conductive line and a second conductive line which are formed on the top surface of the base film layer in parallel to the first and second polymer lines in the length direction; an upper protection film layer attached to the top surface of the base film layer and configured to have a plurality of sensing holes formed at specific intervals in the length direction at locations through which only the first polymer line is exposed, and a controller determining whether there is oil leak, wherein: the second polymer line is a reference line in determining the oil leak, without being exposed through the sensing holes; when a resistance value of the first polymer line and a resistance value of the second polymer line are identically increased, the controller determines that there is no oil leak; and when the resistance value of the second polymer line is within a predetermined limit but the resistance value of the first polymer line exceeds the predetermined limit, the controller determines that there is oil leak and generates an alarm.