JPH0412012U

JPH0412012U -

Info

Publication number: JPH0412012U
Application number: JP5102790U
Authority: JP
Priority date: 1990-05-16
Filing date: 1990-05-16
Publication date: 1992-01-31
Anticipated expiration: 2005-05-16
Also published as: JPH0745773Y2

Description

[Brief explanation of the drawing]

第１図：本考案に係る恒温恒湿機における制御
系のブロツク回路図、第２図：同恒温恒湿機の模
式的構成を示す縦断側面図、第３図：同恒温恒湿
機の温度及び湿度の検出範囲パターン図。尚図面中、１……恒温恒湿機、２ａ……乾湿球
式湿度センサ、２ｂ……電気抵抗式湿度センサ（
又は静電容量式湿度センサ）、３……制御部、４
……平均値演算機能部、５……補正機能部、６…
…警報機能部、Ｒ……被制御室、Ｅａ，Ｅｂ……
検出範囲、Ｅｍ……検出範囲が重複する範囲。 Figure 1: Block circuit diagram of the control system in the constant temperature and humidity machine according to the present invention, Figure 2: A vertical side view showing the schematic configuration of the constant temperature and humidity machine, Figure 3: Temperature of the constant temperature and humidity machine. and humidity detection range pattern diagram. In the drawings, 1... Constant temperature and humidity machine, 2a... Wet and dry bulb type humidity sensor, 2b... Electric resistance type humidity sensor (
or capacitive humidity sensor), 3...control unit, 4
... Average value calculation function section, 5 ... Correction function section, 6 ...
...Alarm function unit, R...Controlled room, Ea, Eb...
Detection range, Em...A range where detection ranges overlap.

Claims

[Scope of Claim for Utility Model Registration] (1) A control system that detects the humidity and temperature in a controlled room using a humidity sensor and a temperature sensor, and controls the humidity and temperature in the controlled room to a set value. In a constant temperature and humidity machine, multiple humidity sensors with different detection principles are set, and a lower detection range of humidity and/or temperature is set for each humidity sensor, and each humidity sensor is selected based on the humidity and/or temperature detection results. A constant temperature and humidity machine characterized by being equipped with a control section that can be used simultaneously with the controller. (2) A claim characterized by comprising a wet/dry bulb type humidity sensor used in a detection range excluding low humidity areas and/or low temperature areas, and an electrical resistance type humidity sensor used in a detection range excluding high humidity areas and/or high temperature areas. Item 1
Constant temperature and humidity machine as described. (3) It is characterized by comprising a psychrometric humidity sensor used in a detection range excluding low humidity areas and/or low temperature areas, and a capacitive humidity sensor used in a detection range excluding high humidity areas and/or high temperature areas. Claim 1
Constant temperature and humidity machine as described. (4) The constant temperature and humidity machine according to claim 1, wherein the control section includes an average value calculation function section that averages the detection results of each humidity sensor in a range where the detection ranges of the humidity sensors overlap. (5) The control unit includes a correction function unit that performs correction for other humidity sensors using one of the humidity sensors as a reference within a range where the detection ranges of the humidity sensors overlap. Constant temperature and humidity machine. (6) A claim characterized in that the control unit is equipped with an alarm function unit that sets an allowable range for the relative deviation of the detection results of each humidity sensor and generates an alarm when the relative deviation exceeds the allowable range. The constant temperature and humidity machine described in item 1.