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1956: Vol. XXXIII, No. 1

The Effect of Stylus Size on the Performance of a Chemical Recorder

Submitted
July 27, 2018
Published
2018-04-27

Abstract

The paper deals with the chemical recorder as used in most types of navigational echo-sounders and other underwater echo-ranging instruments. It is shown that when the time occupied by the stylus in traversing its own length (effective stylus time) is greater than the pulse duration, the performance, compared with a display without this limitation, is degraded. The effect may be represented as that of a low-pass filter in the output, the bandwidth of which is inversely proportional to the effective stylus time.