Browse Prior Art Database

Core Array Temperature Compensator

IP.com Disclosure Number: IPCOM000095181D
Original Publication Date: 1965-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Dorminey, HV: AUTHOR [+2]

Abstract

The magnetic cores in a magnetic core memory array can be maintained at constant temperature with an open loop heating system.

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Core Array Temperature Compensator

The magnetic cores in a magnetic core memory array can be maintained at constant temperature with an open loop heating system.

Memory array 10 is positioned at the upper end of case 12 which is open at its upper and lower ends. Fan 14 positioned below the array 10 draws air in through the bottom opening of case 12, forces it through array 10 and out the top opening of the case. As the air moves, it first passes through filter 16 where it is cleaned and next passes electric heater 18 where its temperature is increased. The air then passes through fan 14. This not only keeps the air moving but also mixes the air so that its temperature is more uniform. The exhaust from fan 14 goes through baffle 20 which provides additional mixing of the air and determines the rate of now of the air through array 10. Baffle 20 is made up of a number of vertical slats 22. These are arranged at right angles to one another so that baffle 20 looks like an egg crate from the top or bottom. The rate which the air flows through array 10 can be altered by changing the number of slats in baffle 20 so as to either increase or decrease the spacing between slats 22.

The temperature of the air is controlled by control circuit 24. This responds to the resistance changes of thermister 26 positioned in the path of air passing through array 10. Thermister 26 can be positioned under array 10 as shown or, alternately, can be positioned over array 10 to measure the e...