JPS56648A - Humidity measuring method - Google Patents

Humidity measuring method

Info

Publication number
JPS56648A
JPS56648A JP7485879A JP7485879A JPS56648A JP S56648 A JPS56648 A JP S56648A JP 7485879 A JP7485879 A JP 7485879A JP 7485879 A JP7485879 A JP 7485879A JP S56648 A JPS56648 A JP S56648A
Authority
JP
Japan
Prior art keywords
open air
humidity
output voltage
temperature
resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7485879A
Other languages
Japanese (ja)
Inventor
Kenzo Kitamura
Tetsuo Miura
Shiyou Ookubo
Hideyuki Nagata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Electronics Co Ltd
Original Assignee
Shibaura Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shibaura Electronics Co Ltd filed Critical Shibaura Electronics Co Ltd
Priority to JP7485879A priority Critical patent/JPS56648A/en
Priority to US06/148,465 priority patent/US4419888A/en
Priority to EP80103210A priority patent/EP0021225A1/en
Priority to CA000353877A priority patent/CA1149635A/en
Publication of JPS56648A publication Critical patent/JPS56648A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To measure humidity accurately with a simple unit, by holding a thermosensing element, which is heated at the open air temperature or more and has a temperature-resistance characteristic, in the open air and by detecting its resistance value change.
CONSTITUTION: A bridge circuit is formed with thermosensing element RS1 which is so held that it can be brought into contact with the open air, temperature compensating element RC1 which is held in absolutely dry state and is equivalent to element RS1, resistances R2 and R3, and variable resistance R4. A voltage is applied to the bridge circuit by power source E1 to make elements RS1 and RC1 into the self-heating stage (approximately 200°C), and the bridge unbalance output voltage appearing at both ends of load resistance R5 is adjusted to zero by variable resistance R4 while holding element RS1 in the atmosphere of relative humidity zero. Next, element RS1 is brought into contact with the open air to measure a generated unbalance output voltage, and simultaneously, the open air temperature is measured. Next, the relation between the bridge unbalance output voltage and the open air temperature with humidity as a parameter is utilized to obtain a value of humidity.
COPYRIGHT: (C)1981,JPO&Japio
JP7485879A 1979-06-14 1979-06-14 Humidity measuring method Pending JPS56648A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7485879A JPS56648A (en) 1979-06-14 1979-06-14 Humidity measuring method
US06/148,465 US4419888A (en) 1979-06-14 1980-05-09 Humidity measuring method
EP80103210A EP0021225A1 (en) 1979-06-14 1980-06-10 Humidity measuring method and hygrometer to carry out the method
CA000353877A CA1149635A (en) 1979-06-14 1980-06-12 Humidity measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7485879A JPS56648A (en) 1979-06-14 1979-06-14 Humidity measuring method

Publications (1)

Publication Number Publication Date
JPS56648A true JPS56648A (en) 1981-01-07

Family

ID=13559431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7485879A Pending JPS56648A (en) 1979-06-14 1979-06-14 Humidity measuring method

Country Status (1)

Country Link
JP (1) JPS56648A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62106360A (en) * 1985-11-05 1987-05-16 Yazaki Corp Moisture sensor and moisture meter
US5387541A (en) * 1990-11-20 1995-02-07 The Secretary For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Method of making silicon-on-porous-silicon by ion implantation
US8112902B2 (en) * 2006-11-06 2012-02-14 E.G.O. Elektro-Geraetebau Gmbh Method for determining the load quantity in a spin dryer and spin dryer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62106360A (en) * 1985-11-05 1987-05-16 Yazaki Corp Moisture sensor and moisture meter
JPH0511783B2 (en) * 1985-11-05 1993-02-16 Yazaki Corp
US5387541A (en) * 1990-11-20 1995-02-07 The Secretary For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Method of making silicon-on-porous-silicon by ion implantation
US8112902B2 (en) * 2006-11-06 2012-02-14 E.G.O. Elektro-Geraetebau Gmbh Method for determining the load quantity in a spin dryer and spin dryer

Similar Documents

Publication Publication Date Title
EP0382217A3 (en) Power source circuit and bridge type measuring device with output compensating circuit utilizing the same
CA2009260A1 (en) Method and apparatus for the measurement of the thermal conductivity of gases
JPS56648A (en) Humidity measuring method
JPS57179758A (en) Method and device for measurement of temperature coefficient of resistance
JPS5693038A (en) Semiconductor gas sensor
JPS57208428A (en) Temperature detecting device
SU114969A1 (en) Apparatus for determining the difference in temperature and humidity in the surface air layer by a psychrometric method
SU788003A1 (en) Flow rate measuring method
JPS5558466A (en) Resistance measuring circuit
SU1377625A1 (en) Method of determining parameters of heat inertia of thermal resistance converter
JPS5712332A (en) Temperature sensor
SU134473A1 (en) Apparatus for measuring the difference in absolute humidity between two predetermined levels in the surface air layer
JPS5531977A (en) Detection element of infrared ray
SU771522A1 (en) Device for measuring thermal conduction of liquids and gases
SU1635101A1 (en) Method of measurement of moisture content of capillary- porous materials
SU1126856A1 (en) Device for measuring humidity
SU1377613A1 (en) Temperature-measuring device
JPS55166032A (en) Gas detecting element and gas detecting method
SU136936A1 (en) Hygrometer with electrolytic heating sensor
SU116949A1 (en) Balanced current device for measuring resistances or other electrical quantities
SU1173206A1 (en) Method of checking thermoelectric transducers
SU121969A1 (en) Instrument for continuous measurement of the moisture content of bulk materials
SU519602A1 (en) Device for measuring air temperature
JPS57116243A (en) Measuring element for degree of thermal conduction
SU861976A2 (en) Device for measuring rapidly charged temperatures