Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1980-08-29
1983-02-01
Gill, James J.
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
336 45, G01K 738
Patent
active
043712720
ABSTRACT:
A thermodetector including a ferromagnetic sensor placed on an object to be measured having a magnetic permeability which changes in relation to the temperature, and made of a ferrite material having a measurable change of magnetic permeability in a measuring temperature range. A magnetic flux generator is disposed to apply a magnetic field to the ferromagnetic member and may be a permanent magnet. A magnetically soft member made of a laminated core of thin sheets of amorphous magnetic material is placed within the magnetic field of the magnetic field generator to cooperate with at least the magnetic flux generator to form a magnetic path. An electric coil including a bobbin surrounds the magnetically soft member. The change of magnetic permeability alters the magnetic flux in the magnetically soft member and is sensed by the electric coil to give an indication of temperature.
REFERENCES:
patent: 2756595 (1956-07-01), Rathenau et al.
patent: 3054044 (1962-09-01), Shevel
patent: 3168830 (1965-02-01), Chass
patent: 3484848 (1969-12-01), Ohlsson
patent: 3614893 (1971-10-01), Nesbitt et al.
patent: 3855528 (1974-12-01), Brown
patent: 3877314 (1975-04-01), Bernin
patent: 4045787 (1977-08-01), Sidor et al.
patent: 4085617 (1978-04-01), Langberg
patent: 4140970 (1979-02-01), Blincoe
"Force & Displacement Transducers Using Single Amorphous Core . . . " By Mohri et al. From EE in Japan, vol. 99, No. 2, 2-79.
Aisin Seiki Company Limited
Gill James J.
LandOfFree
Thermodetector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermodetector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermodetector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2406185