A gear drive transmission error measurement system has been developed using small rotary optical gratings. Results can be obtained over a wide range of operating conditions up to shaft speeds of 6000 revs/min. Error components at frequencies up to 600 Hz have been measured and up to l000 Hz is achievable
GardnerF. M.Phase-lock loop techniques1966 (Wiley, New York).
5.
DalyK. J.SmithJ. D.‘Using gratings in driveline noise problems’, Conference on Noise and Vibration of Engines and Transmission, Cranfield 1979, pp. 15–20 (Instn Mech. Engrs, London).