JPS6449940A - Method for measuring concentration of material in leaf - Google Patents

Method for measuring concentration of material in leaf

Info

Publication number
JPS6449940A
JPS6449940A JP20679187A JP20679187A JPS6449940A JP S6449940 A JPS6449940 A JP S6449940A JP 20679187 A JP20679187 A JP 20679187A JP 20679187 A JP20679187 A JP 20679187A JP S6449940 A JPS6449940 A JP S6449940A
Authority
JP
Japan
Prior art keywords
leaf
sample
mentioned
insertion direction
veins
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
JP20679187A
Other languages
Japanese (ja)
Inventor
Akio Yamanishi
Hitoshi Kamezawa
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP20679187A priority Critical patent/JPS6449940A/en
Priority to US07/227,999 priority patent/US4986665A/en
Priority to GB08818568A priority patent/GB2208001A/en
Publication of JPS6449940A publication Critical patent/JPS6449940A/en
Pending 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N21/3151—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using two sources of radiation of different wavelengths
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3181—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using LEDs
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N2021/635—Photosynthetic material analysis, e.g. chrorophyll
    • 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
    • G01N2021/8466—Investigation of vegetal material, e.g. leaves, plants, fruits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/062—LED's
    • G01N2201/0621—Supply

Abstract

PURPOSE:To measure the in-leaf material concn. in a sample leaf having parallel veins with a small error by providing a guide member which controls the insertion direction of the sample leaf and providing two light sources on a straight line having a specified angle with the above-mentioned insertion direction. CONSTITUTION:A slide plate 4 which controls the insertion direction of the sample leaf L is provided on a sample base 1 and the sample leaf L having the parallel veins is inserted into and imposed on the sample base 1. The two light sources 6, 7 having the specified angle with the above-mentioned insertion direction are provided on the sample base 1. The light rays of the wavelength ranges different form each other are projected from these light sources on the above-mentioned sample leaf L. The respective light rays transmitted through the leaf L are detected by a photodetecting element 8 and the concn. of the material in the leaf is measured from the values thereof. The possibility that the one light passes the veins and the other light passes the non-vein part is less in the case of the small specified angle mentioned above if the meter is constituted in the above-mentioned manner and, therefore, the concn. of the material in the part of the same structure where there is no influence of the veins is measurable. The error in the measurement is thus decreased.
JP20679187A 1987-08-06 1987-08-20 Method for measuring concentration of material in leaf Pending JPS6449940A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP20679187A JPS6449940A (en) 1987-08-20 1987-08-20 Method for measuring concentration of material in leaf
US07/227,999 US4986665A (en) 1987-08-06 1988-08-03 Optical density detector
GB08818568A GB2208001A (en) 1987-08-06 1988-08-04 Optical density detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20679187A JPS6449940A (en) 1987-08-20 1987-08-20 Method for measuring concentration of material in leaf

Publications (1)

Publication Number Publication Date
JPS6449940A true JPS6449940A (en) 1989-02-27

Family

ID=16529154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20679187A Pending JPS6449940A (en) 1987-08-06 1987-08-20 Method for measuring concentration of material in leaf

Country Status (1)

Country Link
JP (1) JPS6449940A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0436448U (en) * 1990-07-23 1992-03-26
FR2918458A1 (en) * 2007-07-06 2009-01-09 Univ Toulouse Le Mirail DEVICE FOR NON-DESTRUCTIVE MEASUREMENT OF MOISTURIZATION OF A PLANT IN ITS NATURAL ENVIRONMENT
JP2014038055A (en) * 2012-08-20 2014-02-27 Hitachi High-Technologies Corp Spectrophotometer
JP2017191075A (en) * 2016-04-15 2017-10-19 株式会社日本未来医療研究所 Volume detection device, blister pack contents detection device having volume detection device, and housing space defining member for volume detection device
JP2019151407A (en) * 2016-04-15 2019-09-12 株式会社日本未来医療研究所 Device for detecting presence/absence of content of blister pack
US10945917B2 (en) 2016-04-15 2021-03-16 Nippon Frontier Medicine Laboratories Inc. Detection apparatus for detecting taking-out of contained object from blister pack, detection method therefor, and medication management system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0436448U (en) * 1990-07-23 1992-03-26
FR2918458A1 (en) * 2007-07-06 2009-01-09 Univ Toulouse Le Mirail DEVICE FOR NON-DESTRUCTIVE MEASUREMENT OF MOISTURIZATION OF A PLANT IN ITS NATURAL ENVIRONMENT
WO2009007269A1 (en) * 2007-07-06 2009-01-15 Universite De Toulouse Ii Le Mirail Optoelectronic device for measuring the hydration of a plant in its natural environment
US8228504B2 (en) 2007-07-06 2012-07-24 Universite De Toulouse Ii Le Mirail Device for optoelectronic measurement of the hydration of a plant in its natural environment
JP2014038055A (en) * 2012-08-20 2014-02-27 Hitachi High-Technologies Corp Spectrophotometer
WO2014030475A1 (en) * 2012-08-20 2014-02-27 株式会社 日立ハイテクノロジーズ Spectrophotometer
US9829430B2 (en) 2012-08-20 2017-11-28 Hitachi High-Technologies Corporation Spectrophotometer
JP2017191075A (en) * 2016-04-15 2017-10-19 株式会社日本未来医療研究所 Volume detection device, blister pack contents detection device having volume detection device, and housing space defining member for volume detection device
JP2019151407A (en) * 2016-04-15 2019-09-12 株式会社日本未来医療研究所 Device for detecting presence/absence of content of blister pack
US10945917B2 (en) 2016-04-15 2021-03-16 Nippon Frontier Medicine Laboratories Inc. Detection apparatus for detecting taking-out of contained object from blister pack, detection method therefor, and medication management system

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