GB1301292A – – Google Patents
GB1301292A – – Google Patents
Info
Publication number
GB1301292A
GB1301292A
GB4403869A
GB1301292DA
GB1301292A
GB 1301292 A
GB1301292 A
GB 1301292A
GB 4403869 A
GB4403869 A
GB 4403869A
GB 1301292D A
GB1301292D A
GB 1301292DA
GB 1301292 A
GB1301292 A
GB 1301292A
Authority
GB
United Kingdom
Prior art keywords
variables
measured
values
variable
value
Prior art date
1969-09-05
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
GB4403869A
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.)
1969-09-05
Filing date
1969-09-05
Publication date
1972-12-29
1969-09-05
Application filed
filed
Critical
1972-12-29
Publication of GB1301292A
publication
Critical
patent/GB1301292A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01D9/00—Recording measured values
G01D9/005—Solid-state data loggers
Abstract
1301292 Recording measured data INSTEM Ltd 25 Sept 1970 [5 Sept 1969] 44038/69 Heading G4H A system for digitally recording the values of at least two variables such as load and extension in a tensile testing machine or thermal conductivity and time in a gas chromatograph comprises a recording mechanism for providing a digital record of the values of the variables measured at discrete intervals and a circuit for inhibiting the output of data to the recording mechanism except when the measured values of two of the variables differ by a predetermined increment from their previously measured values or, when one of two measured variables is represented by regularly occurring pulses such as time pulses, the measured value of the other variable differs from its previously measured value by a predetermined increment. Analogue signals representing the variables are sampled at discrete intervals by switches 12, 13 and the digital values of the variables are fed to counters 15, 16. As each variable is sampled the previous digital value of each variable is applied via a gate 17 or 18 and a digital-to-analogue converter 19 to respective comparators 20 which also receive the present measured values of the variables. Each comparator has high and low outputs depending on whether the present value is above or below the previous value of the variable and feeds addition or subtraction pulses both to the counters 15, 16 and flp-flops 27, 28. When both flip-flops have been set, gates 32, 33 are opened to permit data in stores 25, 26 to be transferred to the recording mechanism.
GB4403869A
1969-09-05
1969-09-05
Expired
GB1301292A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4403869
1969-09-05
Publications (1)
Publication Number
Publication Date
GB1301292A
true
GB1301292A
(en)
1972-12-29
Family
ID=10431476
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4403869A
Expired
GB1301292A
(en)
1969-09-05
1969-09-05
Country Status (1)
Country
Link
GB
(1)
GB1301292A
(en)
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0019672A1
(en)
*
1979-05-29
1980-12-10
Otis Engineering Corporation
Method of and device for recording data down-hole in a well bore
USRE31222E
(en)
1977-12-23
1983-04-26
Otis Engineering Corporation
Microprocessor computerized pressure/temperature/time .[.down-hole.]. recorder
FR2537303A1
(en)
*
1982-12-03
1984-06-08
Electricite De France
AUTONOMOUS CENTER FOR DATA ACQUISITION AND STORAGE
DE3340306A1
(en)
*
1983-11-08
1985-05-15
Honeywell S.A., Bois d’Arcy
METHOD FOR OPERATING A MULTI-CHANNEL DOT PRINTER AND DEVICE FOR IMPLEMENTING THE METHOD
EP0196755A1
(en)
*
1985-02-15
1986-10-08
Delta Technical Services Limited
Data loggers
EP0201296A2
(en)
*
1985-05-06
1986-11-12
Halliburton Company
Method of controlling downhole logging tool
EP0216137A2
(en)
*
1985-09-21
1987-04-01
Neumann Elektronik GmbH
Data quantity reduction method used in the conversion of an analog electrical signal into a digital signal, and a device to carry out the method
US5450104A
(en)
*
1992-03-06
1995-09-12
Fuji Electric Co., Ltd.
Ink jet recording apparatus
1969
1969-09-05
GB
GB4403869A
patent/GB1301292A/en
not_active
Expired
Cited By (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
USRE31222E
(en)
1977-12-23
1983-04-26
Otis Engineering Corporation
Microprocessor computerized pressure/temperature/time .[.down-hole.]. recorder
EP0019672A1
(en)
*
1979-05-29
1980-12-10
Otis Engineering Corporation
Method of and device for recording data down-hole in a well bore
FR2537303A1
(en)
*
1982-12-03
1984-06-08
Electricite De France
AUTONOMOUS CENTER FOR DATA ACQUISITION AND STORAGE
EP0110794A1
(en)
*
1982-12-03
1984-06-13
Electricite De France
Autonomous central unit for data acquisition and storage
DE3340306A1
(en)
*
1983-11-08
1985-05-15
Honeywell S.A., Bois d’Arcy
METHOD FOR OPERATING A MULTI-CHANNEL DOT PRINTER AND DEVICE FOR IMPLEMENTING THE METHOD
US4949285A
(en)
*
1983-11-08
1990-08-14
Honeywell Sa
Multichannel recorder for equidistant recording of significant changes of a measured variable in each channel
US4811249A
(en)
*
1985-02-15
1989-03-07
Delta Technical Services, Limited
Data loggers
EP0196755A1
(en)
*
1985-02-15
1986-10-08
Delta Technical Services Limited
Data loggers
EP0201296A2
(en)
*
1985-05-06
1986-11-12
Halliburton Company
Method of controlling downhole logging tool
EP0201296A3
(en)
*
1985-05-06
1989-08-23
Halliburton Company
Method of controlling downhole logging tool
EP0216137A3
(en)
*
1985-09-21
1990-02-07
Neumann Elektronik Gmbh
Data quantity reduction method used in the conversion of an analogous electrical signal into a digital signal, and a device to carry out the method
EP0216137A2
(en)
*
1985-09-21
1987-04-01
Neumann Elektronik GmbH
Data quantity reduction method used in the conversion of an analog electrical signal into a digital signal, and a device to carry out the method
US5450104A
(en)
*
1992-03-06
1995-09-12
Fuji Electric Co., Ltd.
Ink jet recording apparatus
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Legal Events
Date
Code
Title
Description
1973-05-09
PS
Patent sealed [section 19, patents act 1949]
1975-04-23
PLNP
Patent lapsed through nonpayment of renewal fees
