Abstract
This paper describes the preparation of ferrite thick film (FTF) and its application to pressure/photo sensors. The FTF is composed of ferrite powder with various possible Curie temperatures, polymers, and solvents. The mixed magnetic semiconductor fluid was dried up at 120°C after printing on a plastic substrate. The pressure sensor is constructed by using the high-Curie temperature FTF and a pressure-sensitive element. The FTF converts pressure into reluctance, Whose minute changes are read out by a Hall element. When a photo sensing PFTF, Which is a device painted the radiant flux absorbent On the surface of the low-Curie-temperature FTF, sucks in the light energy, the PFTF reluctance increases, and thus light-magnetic conversion is made. Therefore, the FTF can be used for measurements of pressure, position, fluid flow, and luminous flux.
