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GB940454A - Improvements in or relating to magnetic recording and reproducing arrangements for recording and reproducing measuring processes - Google Patents

Improvements in or relating to magnetic recording and reproducing arrangements for recording and reproducing measuring processes

Info

Publication number
GB940454A
GB940454A GB531160A GB531160A GB940454A GB 940454 A GB940454 A GB 940454A GB 531160 A GB531160 A GB 531160A GB 531160 A GB531160 A GB 531160A GB 940454 A GB940454 A GB 940454A
Authority
GB
United Kingdom
Prior art keywords
reproducing
recording
relating
magnetic recording
measurements
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
Application number
GB531160A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB940454A publication Critical patent/GB940454A/en
Expired legal-status Critical Current

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
    • G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
    • G01D15/02—Styli or other recording elements acting to mechanically deform or perforate the recording surface
    • G01D15/04—Styli or other recording elements acting to mechanically deform or perforate the recording surface acting to punch holes in the recording surface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/225—Measuring circuits therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

940,454. Magnetic recording methods. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 15, 1960 [Feb. 18, 1959], No. 5311/60. Heading G5R. Carrier-frequency signals,one amplitude modulatedto represent analogue measurements,are recorded in tracks M and T on a magnetic tape,the output from one track being used to demodulate the output from the other on playback to realise the analogue measurements. The same bridge circuit which is used normally to provide direct measurements in conjunction with an extensometer transducer (Fig. 1, not shown) is used to analyse the recording, the unmodulated carrier frequency synchronizing the demodulator. Preferably, the pair of heads 18, 18<SP>1</SP> are mounted on a drum 21,which is rotated to read the tracks appropriate to a stationary bight of tape 141 which is transported incrementally.
GB531160A 1959-02-18 1960-02-15 Improvements in or relating to magnetic recording and reproducing arrangements for recording and reproducing measuring processes Expired GB940454A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959P0022242 DE1292876B (en) 1959-02-18 1959-02-18 Arrangement for recording and playing back measurements using a magnetic recorder

Publications (1)

Publication Number Publication Date
GB940454A true GB940454A (en) 1963-10-30

Family

ID=7368641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB531160A Expired GB940454A (en) 1959-02-18 1960-02-15 Improvements in or relating to magnetic recording and reproducing arrangements for recording and reproducing measuring processes

Country Status (3)

Country Link
DE (1) DE1292876B (en)
FR (1) FR1248774A (en)
GB (1) GB940454A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE860656C (en) * 1950-12-03 1952-12-22 Licentia Gmbh Arrangement for monitoring electrical line networks
US2956114A (en) * 1955-07-25 1960-10-11 Ampex Broad band magnetic tape system and method

Also Published As

Publication number Publication date
FR1248774A (en) 1960-12-23
DE1292876B (en) 1969-04-17

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