Title :
Force sensor making use of changes in the maximum induction of an amorphous alloy
Author :
Son, D. ; Sievert, J.
Author_Institution :
Korea Stand. Res. Inst., Daejon, South Korea
fDate :
9/1/1990 12:00:00 AM
Abstract :
A new type of force sensor is introduced which employs the measurement of the change of the maximum induction of a magnetic core derived from the voltage induced in the secondary winding. An external force can be measured periodically at a frequency which is the same as the magnetizing frequency of the core. The force sensor shows a standard deviation of the nonlinearity of less than 0.3% within the range of 0 N to 1.7 N and a resolution of 5×10-4 N. It can measure transient forces at a sampling rate up to 7.5 kHz
Keywords :
boron alloys; cobalt alloys; electric sensing devices; force measurement; magnetic properties of amorphous substances; magnetostrictive devices; nickel alloys; silicon alloys; Co62Ni15Si8B15 magnetostrictive amorphous strip; amorphous alloy; force sensor; magnetizing frequency; maximum induction; resolution; sampling rate; secondary winding; standard deviation; transient forces; Amorphous magnetic materials; Amorphous materials; Force measurement; Force sensors; Frequency measurement; Magnetic cores; Magnetostriction; Sampling methods; Tensile stress; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
