GB473636A - Improvements in and relating to apparatus for measuring vibrations - Google Patents

Improvements in and relating to apparatus for measuring vibrations

Info

Publication number
GB473636A
GB473636A GB13153/36A GB1315336A GB473636A GB 473636 A GB473636 A GB 473636A GB 13153/36 A GB13153/36 A GB 13153/36A GB 1315336 A GB1315336 A GB 1315336A GB 473636 A GB473636 A GB 473636A
Authority
GB
United Kingdom
Prior art keywords
valve
condenser
vibrations
microfarads
amplitude
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
GB13153/36A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB473636A publication Critical patent/GB473636A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

473,636. Valve relay circuits. BRITISH THOMSON-HOUSTON CO., Ltd. May 9, 1936, No. 13153. Convention date, May 11, 1935. [Class 40 (v)] [Also in Group XIX] In apparatus for indicating data relating to mechanical vibrations, a device giving varying potential differences in accordance with varying mechanical pressures is connected in a circuit which has the effect of integrating twice to give a value representing the amplitude of the mechanical vibrations. The device 16 is mounted in a casing 11 screwed to the vibrating body under test and may be a piezo crystal, a carbon block or a magnetostrictive member. In the case of a crystal it is connected to an amplifier 20 coupled through a condenser 37 (10 microfarads) to a resistance 43 (50,000 ohms) and a condenser 41 (0À5 microfarads), a large resistance 45 (1 megohm) being connected across the condenser 41. A valve 21 is connected at the junction of 43, 41 and thus has an amplification factor inversely proportional to the frequency of the potential variations. The valve 21 is connected to a further circuit similar to the one associated with the valve 21 and comprising a valve 22, the plate circuit of this containing an ammeter 47 which gives an indication relating to the amplitude of the vibrations.
GB13153/36A 1935-05-11 1936-05-09 Improvements in and relating to apparatus for measuring vibrations Expired GB473636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US473636XA 1935-05-11 1935-05-11

Publications (1)

Publication Number Publication Date
GB473636A true GB473636A (en) 1937-10-18

Family

ID=21948549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13153/36A Expired GB473636A (en) 1935-05-11 1936-05-09 Improvements in and relating to apparatus for measuring vibrations

Country Status (1)

Country Link
GB (1) GB473636A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514297A (en) * 1943-03-03 1950-07-04 Us Navy Apparatus for observing the conduct of a projectile in a gun
US2616288A (en) * 1945-01-04 1952-11-04 Stewart Warner Corp Electrical apparatus for detecting unbalance in rotating bodies
US2826911A (en) * 1955-04-04 1958-03-18 Champion Internat Company Apparatus for detecting defects in sheet materials
US2900039A (en) * 1953-07-03 1959-08-18 Henry J Burnett Pick-up device
US3058015A (en) * 1960-05-03 1962-10-09 Nesh Florence Dissipation of high frequency vibratory energy

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514297A (en) * 1943-03-03 1950-07-04 Us Navy Apparatus for observing the conduct of a projectile in a gun
US2616288A (en) * 1945-01-04 1952-11-04 Stewart Warner Corp Electrical apparatus for detecting unbalance in rotating bodies
US2900039A (en) * 1953-07-03 1959-08-18 Henry J Burnett Pick-up device
US2826911A (en) * 1955-04-04 1958-03-18 Champion Internat Company Apparatus for detecting defects in sheet materials
US3058015A (en) * 1960-05-03 1962-10-09 Nesh Florence Dissipation of high frequency vibratory energy

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