摘要 |
PCT No. PCT/CA95/00215 Sec. 371 Date Oct. 23, 1996 Sec. 102(e) Date Oct. 23, 1996 PCT Filed Apr. 20, 1995 PCT Pub. No. WO95/30977 PCT Pub. Date Nov. 16, 1995Apparatus comprises a probe for measuring snow pack movement, comprising a mobile element adapted to contact and be displaced by the snow pack, a static element linked to the mobile element by linkage means and adapted to remain stationary relative to the ground, and measuring means to measure relative movement of the two elements. The mobile element comprises a wand (16; 166) adapted to be placed in contact with a snowpack and having tilt means (20(a); 20(b); 168) that permit the wand to tilt away from the vertical in response to lateral movement of the surrounding snow pack. The measuring means comprises a movement sensor (50; 170) connected to the wand that measures the resulting movement of the wand. Data relay means transmits electronic signals generated by the movement sensor to a remote data collection and storage means. The invention further comprises a method for measuring the condition of an avalanche-prone snow pack, employing one or more the probes, linked to a central data collecting and transmitting means, and transmitting the resulting information to a remote data measuring station. |