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
- 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
Links
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Recording Measured Values (AREA)
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.
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)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1014727A (en) | Analogue to digital transducers | |
GB1249542A (en) | A digital modulator | |
JPS5021203B1 (en) | ||
GB1371413A (en) | High speed analogue-to-digital converter | |
GB1204228A (en) | Analog-to-digital cyclic forward feed successive approximation conversion equipment | |
GB1301292A (en) | ||
US3688250A (en) | Amplifier system | |
GB1168047A (en) | Analog-to-Digital Converters | |
GB1332245A (en) | Apparatus for determining phase displacement between periodic signals | |
GB1196885A (en) | Improvements in or relating to Pulse Encoders. | |
GB1066279A (en) | Improvements in or relating to adaptive systems | |
GB1257066A (en) | ||
GB1258482A (en) | ||
GB1407475A (en) | Circuit arrangement for analogue-digital conversion of magnitudes or signals in electrical form | |
GB1324511A (en) | Positioning apparatus | |
US2945220A (en) | Analogue-digital converter | |
GB1375556A (en) | ||
SU1500827A2 (en) | Sensing device having automatic calibration function | |
GB1154092A (en) | Improvements in or relating to Digital-to-Analogue Signal Converters. | |
GB1523123A (en) | Cascaded converter | |
GB1113431A (en) | Improvement relating to radar apparatus | |
SU875451A1 (en) | Device for registering measurement information | |
SU604161A1 (en) | Analogue signal transmitting device | |
GB1190563A (en) | Improvements in or relating to Electrical Testing Methods and Apparatus. | |
SU536441A1 (en) | Strobe digital pulse signal meter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |