GB1516422A – Apparatus and method for monitoring moisture gradient in a moving web
– Google Patents
GB1516422A – Apparatus and method for monitoring moisture gradient in a moving web
– Google Patents
Apparatus and method for monitoring moisture gradient in a moving web
Info
Publication number
GB1516422A
GB1516422A
GB6507/76A
GB650776A
GB1516422A
GB 1516422 A
GB1516422 A
GB 1516422A
GB 6507/76 A
GB6507/76 A
GB 6507/76A
GB 650776 A
GB650776 A
GB 650776A
GB 1516422 A
GB1516422 A
GB 1516422A
Authority
GB
United Kingdom
Prior art keywords
signal
web
detector
moisture content
glue lines
Prior art date
1975-05-30
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.)
Expired
Application number
GB6507/76A
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.)
Molins Machine Co Inc
Original Assignee
Molins Machine Co Inc
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.)
1975-05-30
Filing date
1976-02-19
Publication date
1978-07-05
1976-02-19
Application filed by Molins Machine Co Inc
filed
Critical
Molins Machine Co Inc
1978-07-05
Publication of GB1516422A
publication
Critical
patent/GB1516422A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F26—DRYING
F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
Abstract
1516422 Measuring moisture content electrically MOLINS MACHINE CO Inc 19 Feb 1976 [30 May 1975] 06507/76 Heading G1N The moisture content of glue lines 27 in a freshly made web 26 of corrugated paperboard is monitored by an R.F. absorbtion detector. Web 26 is drawn by endless belt 32 across transmitting elements 22, 24 connected to an R.F. Hartley oscillator 12″, Fig. 3 and spaced apart from one another and from the web by a distance equal to the width of a glue line 27. The R.F. field set up by the elements 22, 24 is amplitude modulated by the web 26 in accordance with the amount of energy absorbed thereby and the amplitude modulated signal A» is applied to envelope detector 16″ including non linear element 44″ and low pass filter 46″. If the web 26 is moving slowly or is static the low frequency signal B» from the detector 16″ may be applied to an ammeter to indicate the moisture content of the glue lines or used as a control signal. If the web 26 is moving quickly signal B» is applied via differentiator R4C3 to A.C. amplifier 58 and thence to peak to peak detector 54 including rectifier circuit 62 and R.C. circuit 64 the time constant of which is long with respect to signal B». Thus the signal at E is a D.C. signal the magnitude of which is proportional to the moisture variation between glue lines 27 and dry liner 30. After further amplification at 56 the signal is applied to an indicator or used as a control signal to heating elements 72, 74.
GB6507/76A
1975-05-30
1976-02-19
Apparatus and method for monitoring moisture gradient in a moving web
Expired
GB1516422A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US05/582,569
US3981082A
(en)
1975-05-30
1975-05-30
Apparatus and method for monitoring the moisture gradient in a moving web
Publications (1)
Publication Number
Publication Date
GB1516422A
true
GB1516422A
(en)
1978-07-05
Family
ID=24329651
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB6507/76A
Expired
GB1516422A
(en)
1975-05-30
1976-02-19
Apparatus and method for monitoring moisture gradient in a moving web
Country Status (4)
Country
Link
US
(1)
US3981082A
(en)
JP
(1)
JPS51146993A
(en)
DE
(1)
DE2613403C3
(en)
GB
(1)
GB1516422A
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4297874A
(en)
*
1979-10-26
1981-11-03
Shinichi Sasaki
Apparatus for measuring a percentage of moisture and weighing of a sheet-like object
JPS63139302U
(en)
*
1987-03-04
1988-09-13
US5120648A
(en)
*
1988-05-26
1992-06-09
Lim Technology Laboratories, Inc.
Chemical analyzer using rf radiation attenuation measurements
US5313167A
(en)
*
1991-10-04
1994-05-17
Marshall Noel H C
Moisture measurement apparatus, system and method utilizing microwave or high frequency energy
RU2551372C1
(en)
*
2014-01-10
2015-05-20
Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук
Device for measurement of physical parameters of dielectric sheet material
JP2016213139A
(en)
*
2015-05-13
2016-12-15
株式会社リコー
High frequency dielectric heating device
CN107471748A
(en)
*
2017-09-04
2017-12-15
芜湖润林包装材料有限公司
A kind of paper corner protector shape setting frock
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2555977A
(en)
*
1950-02-08
1951-06-05
Gen Electric
Moisture content monitor
US3034046A
(en)
*
1959-10-12
1962-05-08
Sasaki Shinichi
Automatic moisture content determination and control apparatus
US3340125A
(en)
*
1964-12-18
1967-09-05
Koppers Co Inc
Adhesive bonding method and apparatus
US3404462A
(en)
*
1966-08-09
1968-10-08
Standard Register Co
Dielectric heat apparatus
US3399460A
(en)
*
1966-08-15
1968-09-03
George F. Russell
Process and apparatus for moisture content de-peaking and equalization
GB1192007A
(en)
*
1966-09-13
1970-05-13
Microwave Instr Ltd
Improvements relating to the Heat Treatment of Sheet and Web Materials
US3848342A
(en)
*
1970-04-08
1974-11-19
Eastman Kodak Co
Control system
US3684953A
(en)
*
1970-12-21
1972-08-15
Industrial Nucleonics Corp
Single frequency moisture gauge with two-channel demodulation and feedback control of input
DE2239848A1
(en)
*
1972-08-12
1974-02-21
Bayer Ag
MICROWAVE TRANSMISSION ARRANGEMENT FOR MEASURING THE WATER CONTENT
US3815019A
(en)
*
1972-12-19
1974-06-04
Electronic Ass Of Ca Ltd
Microwave low moisture measuring apparatus
US3811087A
(en)
*
1973-05-21
1974-05-14
Rothmans Of Pall Mall
Measurement of moisture content of materials
1975
1975-05-30
US
US05/582,569
patent/US3981082A/en
not_active
Expired – Lifetime
1976
1976-02-19
GB
GB6507/76A
patent/GB1516422A/en
not_active
Expired
1976-03-29
DE
DE2613403A
patent/DE2613403C3/en
not_active
Expired
1976-05-25
JP
JP51060529A
patent/JPS51146993A/en
active
Granted
Also Published As
Publication number
Publication date
DE2613403C3
(en)
1981-03-26
US3981082A
(en)
1976-09-21
DE2613403A1
(en)
1976-12-02
DE2613403B2
(en)
1980-08-07
JPS51146993A
(en)
1976-12-16
JPS5650871B2
(en)
1981-12-01
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Legal Events
Date
Code
Title
Description
1978-11-01
PS
Patent sealed [section 19, patents act 1949]
1984-10-31
PCNP
Patent ceased through non-payment of renewal fee
