Measuring linear or angular speed Measuring differences of linear or angular speeds

Industry

  • CPC
  • G01P3/00
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Sub Industries

G01P3/02Devices characterised by the use of mechanical means G01P3/04by comparing two speeds G01P3/06using a friction gear G01P3/08using differential gearing G01P3/10by actuating an indicating element G01P3/12by making use of a system excited by impact G01P3/14by exciting one or more mechanical resonance systems G01P3/16by using centrifugal forces of solid masses G01P3/18transferred to the indicator by mechanical means G01P3/20transferred to the indicator by fluid means G01P3/22transferred to the indicator by electric or magnetic means G01P3/24by using friction effects G01P3/26Devices characterised by the use of fluids G01P3/263by using fluidic impulse generators G01P3/266by using a vortex chamber G01P3/28by using pumps G01P3/30by using centrifugal forces of fluids G01P3/32in a rotary container communicating with a fixed container G01P3/34by using friction effects G01P3/36Devices characterised by the use of optical means G01P3/363by using a ring laser G01P3/366by using diffraction of light G01P3/38using photographic means G01P3/40using stroboscopic means G01P3/42Devices characterised by the use of electric or magnetic means G01P3/44for measuring angular speed G01P3/443mounted in bearings G01P3/446mounted between two axially spaced rows of rolling elements G01P3/46by measuring amplitude of generated current or voltage G01P3/465by using dynamo-electro tachometers or electric generator G01P3/48by measuring frequency of generated current of voltage G01P3/4802by using electronic circuits in general G01P3/4805by using circuits for the electrical integration of the generated pulses G01P3/4807by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine G01P3/481of pulse signals G01P3/4815using a pulse wire sensor G01P3/482delivered by nuclear radiation detectors G01P3/483delivered by variable capacitance detectors G01P3/484delivered by contact-making switches G01P3/486delivered by photo-electric detectors G01P3/487delivered by rotating magnets G01P3/488delivered by variable reluctance detectors G01P3/489Digital circuits therefor G01P3/49using eddy currents G01P3/495where the indicating means responds to forces produced by the eddy currents and the generating magnetic field G01P3/4953with a counter for the covered distance incorporated G01P3/4956with thermal compensation G01P3/50for measuring linear speed G01P3/505by using eddy currents G01P3/52by measuring amplitude of generated current or voltage G01P3/54by measuring frequency of generated current or voltage G01P3/56for comparing two speeds G01P3/565by measuring or by comparing the phase of generated current or voltage G01P3/58by measuring or comparing amplitudes of generated currents or voltage G01P3/60by measuring or comparing frequency of generated currents or voltages G01P3/62Devices characterised by the determination or the variation of atmospheric pressure with height to measure the vertical components of speed G01P3/64Devices characterised by the determination of the time taken to traverse a fixed distance G01P3/66using electric or magnetic means G01P3/665for projectile velocity measurements G01P3/68using optical means G01P3/685for projectile velocity measurements G01P3/80using auto-correlation or cross-correlation detection means G01P3/803in devices of the type to be classified in G01P3/66 G01P3/806in devices of the type to be classified in G01P3/68

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