Accession Number : AD0612704

Title :   AUTOMATIC DATA RECORDING SYSTEM FOR A COSMIC RAY MONITOR,

Corporate Author : NEW HAMPSHIRE UNIV DURHAM

Personal Author(s) : BILLINGS,Barry A. ; Lockwood,John A.

Report Date : JAN 1965

Pagination or Media Count : 59

Abstract : The purpose of this study was to design and construct an electronic system to record automatically the pulse trains produced in a cosmic-ray neutron monitor, designated NM-64. The system supplies signals every five minutes to an IBM 526 card punch causing it to punch on IBM tabulating cards the number of pulses recorded in each of the three separate channels of the cosmic-ray monitor during the previous five-minute interval, the time of day, and date of the month. The barometric pressure reading from a digital barometer is also tabulated on the same IBM card. Pulse counting is accomplished by three groups of decade counters for each pulse train. Each decade counter has an associated storage circuit. This stored information is then converted from binary coded decimal to decimal form by means of a diode matrix and punched. Accurate timing is accomplished by a crystal controlled oscillator feeding cascaded frequency dividers, the output of which supplies a signal every five minutes. (Author)

Descriptors :   (*COSMIC RAYS, MONITORS), (*MONITORS, COSMIC RAYS), (*NEUTRON COUNTERS, ELECTRONIC RECORDING SYSTEMS), (*ELECTRONIC RECORDING SYSTEMS, PULSE COUNTERS), DATA STORAGE SYSTEMS, PUNCHED CARDS, OSCILLATORS, DIGITAL COMPUTERS, BAROMETRIC PRESSURE, AUTOMATIC

Distribution Statement : APPROVED FOR PUBLIC RELEASE