Method and apparatus to measure tension in a pull line for...

Details Method and apparatus to measure tension in a pull line for... Method and apparatus to measure tension in a pull line for...

G - Physics

01

L

73/70

G01L 5/10 (2006.01) G01L 5/04 (2006.01)

Patent

CA 1179526

METHOD AND APPARATUS TO MESSURE TENSION IN A PULL LINE FOR CABLE ABSTRACT OF THE DISCLOSURE A method and apparatus for measuring tension imposed on a cable by a pull line in a conduit includes a tension meter coupled between the cable and the pull line, The meter includes a load cell connected to an electronic circuit to operate an audio transmitter in one embodiment, or to generate an electromagnetic field parallel to the conduit according to a second embodiment. The electromagnetic field induces a tension signal in a metallic conductor extending parallel to the conduit. In a further embodiment, electrical conductors form two of many warp threads of a pull line that also includes a weft thread. The audio or electrical signal is transmitted for detection and for operating a display. An operator uses the display to control tension in the pull line.

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