Position or movement sensor, e.g. for conveyances such as lifts

Details Position or movement sensor, e.g. for conveyances such as lifts Position or movement sensor, e.g. for conveyances such as lifts

G - Physics

08

C

340/135, 324/30

G08C 21/00 (2006.01) B66B 1/34 (2006.01) G01D 5/48 (2006.01)

Patent

CA 1146233

- 9 - ABSTRACT (Fig 3) POSITION OR MOVEMENT SENSOR, E.G. FOR CONVEYANCES SUCH AS LIFTS A position or movement sensor responsive to movement of a mine cage (26) in a mineshaft comprises a leaky coaxial cable (12) extending along the path of the cage, and an oscillator (40) and associated circuitry (42, 44, 14) for forming an electromagnetic standing wave in the cable. The cage carries a resonator (28) which moves adjacent the cable, causing a cyclical change in the cable characteristics as seen from a detector probe (30) at the top end of the cable. Detection and counting circuitry (32) detects and indicates movement of the cage by reference to the standing wave pattern.

355488

Affiliated with

Also associated with

Rating

Position or movement sensor, e.g. for conveyances such as lifts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Position or movement sensor, e.g. for conveyances such as lifts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position or movement sensor, e.g. for conveyances such as lifts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-209127