Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Earle Jones"'
Publikováno v:
The Journal of the Acoustical Society of America. 30:867-870
This paper describes measurement of vibration amplitude with a Fizeau type interferometer using pulses of monochromatic light of adjustable phase. The interferometer is used to calibrate vibration pickups over the frequency range from 100 to 20 000 c
Publikováno v:
The Journal of the Acoustical Society of America. 27:728-734
This paper describes cemented barium titanate accelerometers of two simple types, an electromagnetic shaker with a symmetrically mounted shake table, a set of barium titanate shakers, and two optical methods of accelerometer calibration, one using a
Publikováno v:
The Journal of the Acoustical Society of America. 32:1495-1496
A photometric device for accurately measuring the amplitudes of sinusoidal vibrations is described. The device is designed for calibrating vibration pickups. The apparatus employs a Fizeau‐type interferometer with a photomultiplier observing the fr
Autor:
Earle Jones
Publikováno v:
The Journal of the Acoustical Society of America. 36:1215-1216
Some advantages of high‐strength ceramics over other materials are given for use in vibration pickups and shakers.
Publikováno v:
The Journal of the Acoustical Society of America. 33:848-848
Review of recent publications indicates that current primary laboratory‐calibration methods provide sufficient accuracy for present and foreseeable future needs. An upper frequency limit for vibration measurement was first indicated by Schloss. For
Autor:
Earle Jones
Publikováno v:
Review of Scientific Instruments. 24:1151-1151
Publikováno v:
The Journal of the Acoustical Society of America. 26:935-935
This paper reports progress in the measurement of vibration since the work described at the San Diego meeting of the Acoustical Society. Improvements have been made in the design of cemented piezoelectric accelerometers, in piezoelectric ceramic vibr
Publikováno v:
The Journal of the Acoustical Society of America. 28:780-780
This paper reports continued progress in the work described in our recent paper [J. Acoust. Soc. Am. 27, 728 (1955)] developing methods for calibrating vibration pickups using the wavelength of light as the standard of length. Small amplitudes are me
Autor:
E. R. Smith, Earle Jones
Publikováno v:
The Journal of the Acoustical Society of America. 29:1250-1250
This paper reports further progress in our development of methods for calibrating vibration pickups using the wavelength of light as the standard length. Methods described previously [J. Acoust. Soc. Am. 27, 728 (1955); 28, 780 (1956) and to be publi