Device for measuring the amplitude of the tip of an...

Details Device for measuring the amplitude of the tip of an... Device for measuring the amplitude of the tip of an...

2005-08-23

2005-08-23

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S579000, C228S102000

Reexamination Certificate

active

06931932

ABSTRACT:
A device for measuring the oscillation amplitude of the tip of a capillary by means of a light beam comprises a light source and an opto-receiver and two apertured diaphragms that are arranged between the light source and the opto-receiver and which lie on a common axis. The apertured diaphragms are preferably formed by means of drill holes arranged on a common axis in side walls of a channel formed in a body. The two apertured diaphragms define the diameter of the light beam.

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patent: 6691574 (2004-02-01), Hess et al.
patent: 6739496 (2004-05-01), Mayer et al.
patent: 6827247 (2004-12-01), Fan et al.
patent: 2003/0015951 (2003-01-01), Hess et al.
patent: 1086997 (1953-09-01), None
patent: 54030880 (1979-07-01), None
patent: 10209199 (1998-08-01), None

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