Title:
TEMPERATURE AND HUMIDITY CONTROL METER
Document Type and Number:
Japanese Patent JPS56114017
Kind Code:
A
Abstract:
PURPOSE:To obtain the control signal to the set value with a unit of the control meter, by calculating the relative humidity by the dry and wet ball temperature signals converted into the digital signals. CONSTITUTION:The dry and wet ball temperature signals TD and TW are supplied to the input terminals 11 and 12 each, and the remote dry ball temperature set signal TSD, the wet ball temperature set signal TSW or the relative humidity signal TRH are supplied from outside to the input terminals 13 and 14. These signals are switched by the input switch 2 and then recieve an A/D conversion 3 to be taken into the central processor 6. Then the relative humidity is calculated by the digital-converted signals TD and TW and through the processor 6. This calculated value is compared with the set value to deliver the control signal through the controlling output part 8. The set value can be set to the setter 4 also in a manual way. In such way, the control signal can be obtained to the set value with just a unit of the control meter.
Inventors:
SAKAINO YASUSHI
IMAZU YOSHIAKI
IMAZU YOSHIAKI
Application Number:
JP1731680A
Publication Date:
September 08, 1981
Filing Date:
February 15, 1980
Export Citation:
Assignee:
CHINO WORKS LTD
International Classes:
G01N25/64; G01K7/00; G05D22/02; G05D27/00; (IPC1-7): G01K7/00; G01N25/64; G05D23/20; G05D27/02
Other References:
IECI PROCEEDING INDUSTRIAL APPLICATION OF MICROPROCESSORS=1978
FEINWERKTECHNIK AND MESSTECHNIK=1978
IECI'78 PROCEEDING INDUSTRIAL APPLICATION OF MICROPROCESSORS=1978
FEINWERKTECHNIK AND MESSTECHNIK=1978
IECI'78 PROCEEDING INDUSTRIAL APPLICATION OF MICROPROCESSORS=1978