Heat exchange – Regenerator – Checker brick structure
Patent
1989-11-17
1991-02-19
Ford, John
Heat exchange
Regenerator
Checker brick structure
165 27, 165 30, 165 32, 165 61, 236 78D, 236 15BB, 364137, 364162, 364557, F25B 2900
Patent
active
049934805
ABSTRACT:
Temperature controlling means for a thermostat for use in viscosity measurement including: a first thermometer detecting the temperature of a fluid sample which is immersed in a thermostat and whose viscosity is measured; a first controller obtaining the difference between a desired set point and the detected value of the sample temperature, momently calculating a set point of temperature of the thermostat according to an operation formula expresed as a function of the above temperature difference and making a controlled signal corresponding to the calculated set point; a second thermometer detecting the temperature of the thermostat; a heating and cooling device for heating and cooling a medium bath of the thermostat; and a second controller making a controlled signal for operating the heating and cooling device under a PID control formed on the basis of the difference between the calculated set point and the detected value of the thermostat temperature and inputting the PID controlled signal into the heating and cooling device.
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Fishbeck, James, "Writing P-I-D Control Loops Easily in Basic", Control Engineering, vol. 25, No. 10, pp.45-47, Oct. 1978.
Kawata, Michio, "Viscosity", Revised Edition published by Corona Co., Jul. 1983, pp. 32, 41, 106, 109-110.
Hayashi Mitsuroh
Ishiwata Syousuke
Oshima Hideaki
Suzuki Osamu
Adams Bruce L.
Chichibu Cement Kabushiki Kaisha
Ford John
Wilks Van C.
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