Stamp serration number determination system - has mounting surface for stamp-stamp carrier with sensor signal transmitter mounted above surface detecting stamp serrated edge to be measured

摘要

The device has a sensor (21) with the signal transmitter, coupled with a signal evaluation part (26), and includes a main stage (30) receiving signals from two sensors (21,28) and includes an intermediate storage (30.1). The first sensor (21') has a light transmitter (22) and a light receiver (23), with an optoelectronic converter as the signal transmitter. The first sensor (21) is arranged by the side of the serrated edge of the stamp to be measured, at a distance and parallel to it, and this distance can be adjusted. The first sensor (21') is designed as a stationary image sensor (31,32), with which the edge region of an image of the stamp to be measured is determined, for the prodn. of the evaluation signal. ADVANTAGES - Faultfree determination of serrations per unit length of serrated stamps is facilitated, using mechanism means ensuring protection of stamp.