JPS61184447A - Apparatus for measuring moisture of raw leaves of vegetables or tea - Google Patents

Apparatus for measuring moisture of raw leaves of vegetables or tea

Info

Publication number
JPS61184447A
JPS61184447A JP1398785A JP1398785A JPS61184447A JP S61184447 A JPS61184447 A JP S61184447A JP 1398785 A JP1398785 A JP 1398785A JP 1398785 A JP1398785 A JP 1398785A JP S61184447 A JPS61184447 A JP S61184447A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
cx
specimen
volume
thickness
c2v
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
JP1398785A
Inventor
Bunjiro Ichijo
Original Assignee
Bunjiro Ichijo
Kawasaki Kiko Kk
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

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material
    • G01N27/22Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material by investigating capacitance
    • G01N27/223Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material by investigating capacitance for determining moisture content, e.g. humidity

Abstract

PURPOSE:To make it possible to measure moisture regardless of the thickness of a specimen, by simultaneously measuring the volume and thickness of the specimen to calculate the product of both measured values. CONSTITUTION:The product of the volume CX and thickness TX of a specimen are proportional to moisture MX. The specimen is held between micrometer type parallel plate electrodes to simultaneously measure the volume CX and the thickness TX and CXXTX is indicated by a measuring device. For example, in order to measure the volume CX of low impedance shown by the equivalent circuit of a drawing (B) regardless of the value of a resistor RX, the circuit of a drawing (C) is used. In this circuit, the output current Igc of a detector P is 0 under the condition of formula. In this state, the specimen is connected to a capacitor C2V in parallel by a switch S. If the capacity C2V is reduced and the current Igc is again set to 0, the volume CX can be calculated from CX=C2VD-C2VX (wherein C2VD is the dial degree of a capacitor C1V when a switch 4S is opened and C2VX is the dial degree of the capacitor C2V bringing the current Igc to 0 when a switch S is closed).
JP1398785A 1985-01-28 1985-01-28 Apparatus for measuring moisture of raw leaves of vegetables or tea Pending JPS61184447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1398785A JPS61184447A (en) 1985-01-28 1985-01-28 Apparatus for measuring moisture of raw leaves of vegetables or tea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1398785A JPS61184447A (en) 1985-01-28 1985-01-28 Apparatus for measuring moisture of raw leaves of vegetables or tea

Publications (1)

Publication Number Publication Date
JPS61184447A true true JPS61184447A (en) 1986-08-18

Family

ID=11848576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1398785A Pending JPS61184447A (en) 1985-01-28 1985-01-28 Apparatus for measuring moisture of raw leaves of vegetables or tea

Country Status (1)

Country Link
JP (1) JPS61184447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131401A (en) * 1987-08-14 1989-05-24 Impact Syst Inc Scanning water content meter combined with thickness meter for traveling sheet material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670453A (en) * 1979-11-15 1981-06-12 Kawasaki Kiko Kk Method and device for measuring water content of tea leaf

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670453A (en) * 1979-11-15 1981-06-12 Kawasaki Kiko Kk Method and device for measuring water content of tea leaf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131401A (en) * 1987-08-14 1989-05-24 Impact Syst Inc Scanning water content meter combined with thickness meter for traveling sheet material

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