Browse Prior Art Database

Automatic Control System for X Ray Experiments

IP.com Disclosure Number: IPCOM000077830D
Original Publication Date: 1972-Sep-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Gangulee, A: AUTHOR [+2]

Abstract

A system is described for complete local control of X-ray diffraction experiments. A typical application of the system is shown in the block diagram of Fig. 1, where the system controller scans preselected 2 Phi-ranges by a stepping motor driving an X-ray goniometer.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Automatic Control System for X Ray Experiments

A system is described for complete local control of X-ray diffraction experiments. A typical application of the system is shown in the block diagram of Fig. 1, where the system controller scans preselected 2 Phi-ranges by a stepping motor driving an X-ray goniometer.

The system controller unit is illustrated by the flow diagram shown in Fig. 2. It incorporates a pulse generator to drive one or more stepping motors which manipulate the specimen, e.g., in the goniometer drive. The range of scan of the stepping motors may be preselected by presetting appropriate binary-coded- decimal switches. At predetermined points, control can be passed over to one or more external subtasks in sequence so as to change specific experimental parameters. Typically, such subtasks can change the specimen and/or the temperature of the specimen; a specimen changing subtask is illustrated in Fig.
1. Almost all phases of X-ray diffraction work can be incorporated in such a system by choosing suitable subtasks.

The data acquired during the experiments can conveniently be recorded through an IBM 1050 Data Communication System for on-line or off-line computation.

1

Page 2 of 2

2

[This page contains 4 pictures or other non-text objects]