Distance measuring sensor

Abstract

Abstract PURPOSE:To measure the distance between two points by providing a magnetic field generating means and an arithmetic means which transduces a magnetic field produced by the magnetic field generating means into a voltage, and utilizing data on the distance between both means. CONSTITUTION:The magnetic field generator 1 is composed of coils for generatin magnetic fields in three directions. Those coils L1-L3 generate the magnetic field in the (x)-axis, (y)-axis, and (z)-axis directions. The magnetic field generator 1 is connected to a driver 2, which outputs an AC signal obtained from an oscillator 5 selectively to the coils L1-L3. A sensor 6 has coils SL1-SL3 to detect the magnetic fields in the three directions. The output of the sensor 6 is added to the square-law detected signal of a signal obtained through a detector adder 7. The output of the detector adder 7 is further processed and added through an arithmetic processing circuit 8 and then passed through a computing element 8-8 for the root of the 6th power to output a voltage proportional to the distance between the magnetic field generator and sensor. Thus, the distance between two points is measured.

Inventors

• 👤 Tsutomu Jinno
• 👤 神野　勉

Bibliographic Details