ELECTRIC RESISTOR, MANUFACTURING METHOD OF ELECTRIC RESISTOR AND LEAKAGE LIQUID SENSOR USING ELECTRIC RESISTOR

摘要

PROBLEM TO BE SOLVED: To solve the problems that it is difficult to be mounted on a joint of a high pressure pipe of machinery and equipment, and that an oil leak blowing out in mist from the joint or a trace of an oil leak cannot be detected early. SOLUTION: This sensor has an electric resistor 1 changing its electric resistance value by being brought into contact with detection object liquid. The sensor is constituted by covering both faces of the electric resistor 1 with water- impermeable members 2 permeable by the detection object liquid, and by wrapping the electric resistor 1 and the water-impermeable members 2 with a protective film 4 permeable by the detection object liquid.