G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 7/00 (2006.01) G01B 7/02 (2006.01) G01D 5/247 (2006.01) G01F 23/296 (2006.01) G01F 23/68 (2006.01) G01F 23/72 (2006.01)
Patent
CA 2041651
A displacement transducer (10) utilizes a torsional strain waveguide (20) having a magnetic member (17) that is adjustably positioned along the length of the waveguide, when an electrical current pulse is passed along the waveguide (20) and reaches the magnet (17) a torsional strain wave is created in the waveguide (20). The torsional strain wave will be reflected back toward a mounting end of the waveguide (20) where a converter or sensor (32) is positioned to sense the strain wave signal and convert it to an electrical output signal. The strain wave signals have signal lobes of a time period. A waveguide mounting block (25) supports the waveguide (20) at the mounting end and provides a reflection point for the torsional strain waves. The waveguide mounting block (25) is on an opposite side of the signal sensor (32) from the magnet (17). The mounting block (25) is precisely positioned a distance from the signal sensor (32) that is equal to distance traveled by the torsional strain wave in the waveguide during one-half of the signal lobe time period so that the reflected wave becomes an additive signal to the incoming torsional strain wave signals to provide a greater amplitude to the signal being received.
Marks & Clerk
Mts Systems Corporation
LandOfFree
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