GB782092A - Improvements in or relating to the electrical measurement of mechanical magnitudes - Google Patents

Improvements in or relating to the electrical measurement of mechanical magnitudes

Info

Publication number
GB782092A
GB782092A GB1344356A GB1344356A GB782092A GB 782092 A GB782092 A GB 782092A GB 1344356 A GB1344356 A GB 1344356A GB 1344356 A GB1344356 A GB 1344356A GB 782092 A GB782092 A GB 782092A
Authority
GB
United Kingdom
Prior art keywords
bridge
shaft
strain gauges
resistance
produced
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
GB1344356A
Inventor
Hermann Straub
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to GB1344356A priority Critical patent/GB782092A/en
Publication of GB782092A publication Critical patent/GB782092A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/108—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving resistance strain gauges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

782,092. Electric measuring systems. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.- GES. May 23, 1955, No. 13443/56. Divided out of 782,091, [Group XXXVI]. Class 40 (1). Apparatus for measuring the torque transmitted by a shaft comprises two pairs of strain gauge resistors fixed to the shaft so that the twist of the shaft produced by the torque transmission causes the resistance of one pair of strain gauges to increase and that of the other to decrease, the change in resistance being determined by the portable bridge described in Specification 782,091. The bridge is energized by a generator G (Fig. 5), driven by a batteryenergized motor M. Two of the arms of the bridge constitute the test strain gauges 30, 31 and the other two 12, 12<SP>1</SP> are included in the portable apparatus, which also includes the 3-stage amplifier for the bridge unbalance voltage, the amplified output being demodulated and fed to. a recording oscillograph. An initial standard unbalance is produced by introducing a resistor 35, 36 or 37 in parallel with one arm 12 of the bridge, the selecting switch 28 being coupled with a bridge voltage selecting key 27, to produce a standard deflection on the oscillograph from which the test deflections during torque transmission may be gauged. The arrangement of strain gauges on the shaft automatically compensates for variations in ambient temperature.
GB1344356A 1955-05-23 1955-05-23 Improvements in or relating to the electrical measurement of mechanical magnitudes Expired GB782092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1344356A GB782092A (en) 1955-05-23 1955-05-23 Improvements in or relating to the electrical measurement of mechanical magnitudes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1344356A GB782092A (en) 1955-05-23 1955-05-23 Improvements in or relating to the electrical measurement of mechanical magnitudes

Publications (1)

Publication Number Publication Date
GB782092A true GB782092A (en) 1957-09-04

Family

ID=10023085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1344356A Expired GB782092A (en) 1955-05-23 1955-05-23 Improvements in or relating to the electrical measurement of mechanical magnitudes

Country Status (1)

Country Link
GB (1) GB782092A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006185A (en) * 1957-10-29 1961-10-31 Arnold U Huggenberger Instrument for measuring mechanical quantities according to the carrierfrequency method
US3314035A (en) * 1964-09-04 1967-04-11 Electro Optical Systems Inc Semiconductor potentiometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006185A (en) * 1957-10-29 1961-10-31 Arnold U Huggenberger Instrument for measuring mechanical quantities according to the carrierfrequency method
US3314035A (en) * 1964-09-04 1967-04-11 Electro Optical Systems Inc Semiconductor potentiometer

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