PURPOSE: To provide a multipoint simultaneous vibration measuring equipment in which the measurement accuracy is sustained by setting a large number of vibration measuring points while transmitting the vibration signals on a single transmission cable to a receiving section.
CONSTITUTION: In the vibration measuring equipment, a vibration signal transmitting section I comprises (n) vibration sensors 1a-1n corresponding to (n) measuring points, (n) amplifiers 3a-3n, (n) A/D converters 15a-15n, n×N bits of AM modulators 16a1-16n11, (n) signal adders 17a-17n, (n) FM modulators 18a-18n, n transmitters 7a-7n, and n stabilized power supply circuits 9a-9n, whereas a vibration signal receiving section II comprises a receiving amplifier 10, n bandpass filters 19a-19n, n FM demodulators 20a-20n, n×N bits bandpass filters 21a1-21nN and n×N bits AM demodulators 22a1-22nN, n buffer amplifiers 23a-23n, n D/A converters 24a-24n, a record analyzer 4 and a power supply unit 14. The transmitters 7a-7n are connected with the receiving amplifier 10 through a single transmission cable 8.
MATSUO MAMORU
NISHIJIMA TAKEO
OKANO HARUKI
YAMARI SANGYO KK
TOKYO SOKKI KENKYUSHO KK
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