Title :
Pressure/photo sensor utilizing polymer magnetic composite
Author :
Seki, K. ; Nakayama, Y. ; Chiba, S. ; Tsunekawa, Y. ; Matsuki, H. ; Murakami, K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Iwate Univ., Morioka, Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
A polymer magnetic composite (PMC) is a flexible thick film and is composed of a ferrite powder with variable possible Curie temperatures, polymer and solvent. It is found that high and low Curie temperature PMCs can be used for pressure and photosensors, respectively. The set up combined with the PMC and a pressure element acts as a pressure sensor. The device, painted with a radiant flux absorbent on the surface of the PMC, responds to the visible rays. The pressure and light signals are read out by a Hall element in noncontact with the PMC
Keywords :
Curie temperature; electric sensing devices; ferrite devices; filled polymers; photodetectors; pressure sensors; thick film devices; thick films; Hall element; ferrite powder; flexible thick film; photosensors; polymer magnetic composite; pressure sensor; radiant flux absorbent; variable Curie temperature; Ferrites; Magnetic circuits; Magnetic flux; Magnetic sensors; Polymer films; Shape; Solvents; Substrates; Temperature sensors; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
