Accession Number : ADA118040

Title :   An Automated Temperature Controller for the Advanced Hall Effect Experimental Data Acquisition System.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Page,Daniel John

PDF Url : ADA118040

Report Date : Mar 1982

Pagination or Media Count : 209

Abstract : The purpose of this study was the development of an automated temperature controller to interface with the automated data acquisition system and the experiment. The temperature controller is designed to control the temperature of the silicon sample to within 0.005 degrees kelvin in the temperature range of 4.2 to 300 degrees Kelvin. The control algorithm measures the thermal impulse response of the system and uses this information to adjust and control the temperature. An MC6809 microprocessor with 10K bytes of EPROM and 640 bytes of RAM is used to implement the controller. The control algorithm and other software was developed to enable the controller to control temperature. A number of problems with the present controller design are identified and recommendations for improvements to the design are made.

Descriptors :   *Temperature control, *Automatic, *Data acquisition, *Experimental data, *Hall effect, Interfaces, Microprocessors, Silicon, Samplers, Electrical properties, Impurities, Semiconductors, Optical detectors, Integrated circuits, Algorithms, Theses

Subject Categories : Air Condition, Heating, Lighting & Ventilating
      Test Facilities, Equipment and Methods
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE