DEVICE FOR MEASURING HUMIDITY OF LEATHER MATERIALS Russian patent published in 1996 - IPC

FIELD: leather manufacture. SUBSTANCE: device for measuring humidity of porous materials, for example, leather, has probe provided with detectors, conversion circuit, data processing unit and indication circuit. Conversion circuit and data processing unit have pulse generator, two time-to-pulse converters, closing switches, pulse integrator, coincidence circuits, pulse counters. Indication circuit has indicators. Probe with detectors is made in form of two groups of saw-shaped needle electrodes. Resistance may be averaged along several depths of needles deepening due to shapes of the electrodes said and structure of the device. EFFECT: improved precision of measurement. 2 cl, 5 dwg