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    • 7. 发明公开
    • VIBRATIONSMESSSYSTEM
    • EP1922531A1
    • 2008-05-21
    • EP06778121.1
    • 2006-08-02
    • Siemens Aktiengesellschaft
    • SCHEIBNER, DirkMAKUTH, Jens
    • G01H11/02G01H11/06
    • G01H11/00
    • The invention relates to a vibration measurement system for frequency-selective oscillation measurement in particular of low frequencies as are relevant in the field of automation and drive technology. The invention proposes coupling a broadband transmitter structure, which is excited directly by the excitation signal to be determined, via an electrostatic or inductive force to a receiver structure. This force coupling results in amplitude modulation of a carrier signal exciting the receiver structure. The actual excitation signal can be extracted from the spectrum of the amplitude-modulated carrier signal, for example by suitably selecting the frequency of the carrier signal. In order to make an oscillation analysis possible which is as unsusceptible to interference possible, an interference signal brought about, for example, by connector excitations is largely eliminated in advance from the amplitude-modulated carrier signal.
    • 本发明涉及用于频率选择性振荡测量的振动测量系统,特别是在自动化和驱动技术领域中与低频相关的振动测量。 本发明提出将宽带发射机结构通过静电或感应力耦合到接收机结构,所述宽带发射机结构由待确定的激励信号直接激励。 该力耦合导致激励接收器结构的载波信号的幅度调制。 例如通过适当选择载波信号的频率,可以从幅度调制的载波信号的频谱中提取实际的激励信号。 为了使振荡分析成为可能,不易受干扰影响,例如由连接器激励引起的干扰信号事先从幅度调制的载波信号中大大消除。