JPS5722537A - Device for measuring amount of water content in paper and rate of water content and the like - Google Patents

Device for measuring amount of water content in paper and rate of water content and the like

Info

Publication number
JPS5722537A
JPS5722537A JP9795480A JP9795480A JPS5722537A JP S5722537 A JPS5722537 A JP S5722537A JP 9795480 A JP9795480 A JP 9795480A JP 9795480 A JP9795480 A JP 9795480A JP S5722537 A JPS5722537 A JP S5722537A
Authority
JP
Japan
Prior art keywords
light
inputted
water content
transmitted
incident window
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.)
Granted
Application number
JP9795480A
Other languages
Japanese (ja)
Other versions
JPS6123498B2 (en
Inventor
Seiichiro Kiyobe
Seiji Takita
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP9795480A priority Critical patent/JPS5722537A/en
Publication of JPS5722537A publication Critical patent/JPS5722537A/en
Publication of JPS6123498B2 publication Critical patent/JPS6123498B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To perform precise measurement by providing an upper head having two irradiating windows and a lower head which has one light receiving window and faces said upper head, and by providing a constitution wherein the light transmitted through the specimen paper placed between said both heads and the scattered light enter the receiving window via a light screening plate. CONSTITUTION:The light from a light source 50 is inputted to a rotary reactor 41 through a lens 51, and also through a reflecting mirror 53 and a lens 52. Through a reference light filter 42 and a measuring light filter 43 provided in the rotary sector 41, the reference light and the measuring light are inputted to irradiating windows 11 and 12 in the upper head 10, respectively. The light from the incident window 11 is transmitted through the specimen paper 30 and inputted into a sensor 25 via an incident window 21, with the scattering being repeated. On the other hand, the light from the incident window 12 is transmitted through the specimen paper 30, and inputted to the sensor 25. From the ratio between these output signals, the signal in which the amount of the water is compensated is obtained. Since the variation in gap X0 is compensated by the light screening plate 24 provided in the incident window 21, the highly precise measurement can be performed.
JP9795480A 1980-07-17 1980-07-17 Device for measuring amount of water content in paper and rate of water content and the like Granted JPS5722537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9795480A JPS5722537A (en) 1980-07-17 1980-07-17 Device for measuring amount of water content in paper and rate of water content and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9795480A JPS5722537A (en) 1980-07-17 1980-07-17 Device for measuring amount of water content in paper and rate of water content and the like

Publications (2)

Publication Number Publication Date
JPS5722537A true JPS5722537A (en) 1982-02-05
JPS6123498B2 JPS6123498B2 (en) 1986-06-06

Family

ID=14206055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9795480A Granted JPS5722537A (en) 1980-07-17 1980-07-17 Device for measuring amount of water content in paper and rate of water content and the like

Country Status (1)

Country Link
JP (1) JPS5722537A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013057513A (en) * 2011-09-07 2013-03-28 Ricoh Co Ltd Moisture sensor, moisture detector, and image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013057513A (en) * 2011-09-07 2013-03-28 Ricoh Co Ltd Moisture sensor, moisture detector, and image forming device

Also Published As

Publication number Publication date
JPS6123498B2 (en) 1986-06-06

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