Digital Controller for Stepping Motor-Driven X-Ray Diffractometer

摘要

Presented is a stepping motor controller for the Philips PW 1050 Vertical Goniometer featuring crystal-controlled scan rates of 4, 2, 1, 1/2, 1/4, 1/8, 1/16 degree per minute in the continuous scan mode, and step sizes of 0.005, 0.01, 0.02, 0.025, 0.05, 0.1, 0.2, 0.5 degree when operated in the step scan mode. A slow rate of 96 degrees per minute is provided for positioning purposes. The TTL-implemented design accomodates upgrading to higher levels of automation by a simple substitution of the control logic card. (Atomindex citation 16:075090)