GB988994A - Improvements relating to transducers for use in the measurement and control of the modulus of elasticity in filar structures - Google Patents

Improvements relating to transducers for use in the measurement and control of the modulus of elasticity in filar structures

Info

Publication number
GB988994A
GB988994A GB3406863A GB3406863A GB988994A GB 988994 A GB988994 A GB 988994A GB 3406863 A GB3406863 A GB 3406863A GB 3406863 A GB3406863 A GB 3406863A GB 988994 A GB988994 A GB 988994A
Authority
GB
United Kingdom
Prior art keywords
modulus
measuring
transducers
elasticity
measurement
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
GB3406863A
Inventor
Arthur August Janszen
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.)
H M Morgan & Co Inc
Original Assignee
H M Morgan & 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.)
Filing date
Publication date
Application filed by H M Morgan & Co Inc filed Critical H M Morgan & Co Inc
Priority to GB3406863A priority Critical patent/GB988994A/en
Publication of GB988994A publication Critical patent/GB988994A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/042—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands by measuring vibrational characteristics of the flexible member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/005—Electromagnetic means
    • G01N2203/0051—Piezoelectric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0278—Thin specimens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

988,994. Measuring electrically. H. M. MORGAN & CO. Inc. Aug. 28, 1963, No. 34068/63. Heading G1N. [Also in Divisions G3 and H4] A transducer for transmitting and receiving longitudinal vibrations on a moving filament or web comprises a roller 31, grooved or otherwise, of high inertia, and attached to a piezo-electric crystal 21, or alternatively to an electromagnetic reed-type vibrator (not shown). Two such transducers are used as shown in Fig. 1 for measuring and/or controlling the modulus of elasticity of natural or synthetic fibres, plastics films or paper during production, by measuring the velocity of propagation of supersonic continuous or pulsed vibrations. The measurement is effected by detecting the phase displacement between transmitter 17 and receiver 19, placed preferably between a snubbing pin 13 and drawing drum 15. For automatic control, the correct phase displacement is set on a phase shifter 41 and error signals from phase detector 43 adjust the speed of drum 15 and hence alter the draw tension upon which the modulus depends.
GB3406863A 1963-08-28 1963-08-28 Improvements relating to transducers for use in the measurement and control of the modulus of elasticity in filar structures Expired GB988994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3406863A GB988994A (en) 1963-08-28 1963-08-28 Improvements relating to transducers for use in the measurement and control of the modulus of elasticity in filar structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3406863A GB988994A (en) 1963-08-28 1963-08-28 Improvements relating to transducers for use in the measurement and control of the modulus of elasticity in filar structures

Publications (1)

Publication Number Publication Date
GB988994A true GB988994A (en) 1965-04-14

Family

ID=10360988

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3406863A Expired GB988994A (en) 1963-08-28 1963-08-28 Improvements relating to transducers for use in the measurement and control of the modulus of elasticity in filar structures

Country Status (1)

Country Link
GB (1) GB988994A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124454A1 (en) * 1983-04-29 1984-11-07 Rhone-Poulenc Fibres Structure regularity process for filaments made from thermoplastic polymers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124454A1 (en) * 1983-04-29 1984-11-07 Rhone-Poulenc Fibres Structure regularity process for filaments made from thermoplastic polymers

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