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Heterodyne vibration measurement
Measurement Techniques, 1993Analytic expressions are derived for the vibration amplitude and frequency in a heterodyne measurement method. The measurement accuracy is estimated.
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VIBRATION MEASURING TECHNIQUES
Industrial Lubrication and Tribology, 1989Vibration monitoring is being increasingly used as a tool for safe operation of machinery and efficient maintenance planning. There are, however, many problems associated with the measurement and interpretation of vibration data. In order to obtain a rapid diagnosis of a machine's health, and to apply condition monitoring results in practice, it is ...
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Piezoelectric vibration measurement head
The Journal of the Acoustical Society of America, 1987A vibration measurement head is used to measure the type of vibration set up in a magnetic head by the frictional contact of the magnetic head with magnetic media. The head is the same shape as such a magnetic head and consists of piezoelectric material in which vibration generates an electrical charge.
Takashi Iwasaki, Keiju Mori
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Ambient vibration measurements
2003Structural analysis is usually carried out by aid of the analytical models that have, together with the computational power, considerably improved. Yet, the modeling of true structural behavior of existing buildings presents a difficult step in the analysis because of unknown building methods, various materials used, structural degradation and complex ...
Sigmund, Vladimir +4 more
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2010
Measurement of ground vibration is important for checking of amplitudes of predicted ground motion and for confirmation of efficiency of control measures of ground vibration. The properties of measuring instruments used can affect the results of measurements and therefore the user need to know how to select these properties in order to obtain correct ...
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Measurement of ground vibration is important for checking of amplitudes of predicted ground motion and for confirmation of efficiency of control measures of ground vibration. The properties of measuring instruments used can affect the results of measurements and therefore the user need to know how to select these properties in order to obtain correct ...
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Abstract This chapter focuses on the design of measuring devices. The devices used to measure vibration typically consist of an electronic transducer with an interconnecting cable and an alternating current voltmeter. The working principle of each type of transducer is described in this chapter along with their important characteristics ...
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Vibration type measuring apparatus
The Journal of the Acoustical Society of America, 1989The invention relates to a weight measuring apparatus utilizing a vibration type force sensor having a greatly increased Q and being inexpensive and easy to manufacture. The force sensor includes a single vibratory beam or a pair of vibratory beams, which oscillate at a particular measurement frequency related to the stress applied to the sensor by a ...
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Vibration type measurement transducer
The Journal of the Acoustical Society of America, 2009A measurement transducer includes: At least one interconnected system formed by means of at least two components, especially components of metal. At least the first component of the interconnected system is, in such case, embodied as a composite, formed part composed of at least two materials, which differ from one another with respect to at least one ...
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Comparison study of laser vibration measurement and quantum vibration measurement
2021 13th International Conference on Wireless Communications and Signal Processing (WCSP), 2021Chi Zhang +3 more
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