HARDNESS TESTER HT-1
The HT-1 is an eddy current instrument designed for hardness nondestructive testing of
steel details -crankshafts and camshafts, slide bars of machine tools, etc. and also in difficult-to-access places of details
(gear teeth, grooves, holes, slots, internal surfaces, etc.) with a low class of surface cleanliness - after surface hardening
(high frequency current hardening, chemical - thermal processing, laser processing, etc.)
The HT-1 principle of operation is based on a higher harmonics method. A testing area
of a detail is reverse magnetized by a variable sinusoidal magnetic field generated by an exciting coil of a small-sized
superimposed transducer, and the third harmonic component of an output e.m.f., which is proportional to hardness, is
measured. The time of one measurement is not more than 3 seconds. The minimal diameter of a transducer is 5mm.
HT-1 may be integrates into automatic inspection lines.
The power supply is an alternating current network of 220V and 50 Hz or accumulators.