G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 7/02 (2006.01) B66C 23/90 (2006.01) G01B 17/00 (2006.01) G01S 11/16 (2006.01) H01Q 1/12 (2006.01)
Patent
CA 2272977
The boom length measurement includes a transmitting unit (22) mounted on the fly section (20) of a multi-section telescopic boom (10), and a receiving unit (24) mounted on the base section (12) of the multi-section telescopic boom (10). The transmitting unit (22) transmits a first and second signal having first and second transmission speeds, respectively. The second transmission speed is less than the first transmission speed. Based on a difference in transit times of the first and second signals received by the receiving unit (24), a length determiner (42) determines the length of the multi-section telescopic boom (10). A display (46) displays the determined length.
Grove U.s. L.l.c.
Grove U.s. Llc
Mcfadden Fincham
LandOfFree
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