Radiant energy – Geological testing or irradiation
Patent
1986-08-27
1988-06-07
Howell, Janice A.
Radiant energy
Geological testing or irradiation
250308, 33172E, G21G 406, G01V 500
Patent
active
047498587
ABSTRACT:
The present invention provides an apparatus for detecting the depth position of the source rod of a portable nuclear measuring gauge having a housing with the elongate source rod extending vertically therethrough and mounted for vertical sliding movement to various depth positions. The apparatus comprises an elongate variable resistance element extending axially parallel to said source rod, means for slideably engaging the elongate variable resistance element as the source rod is moved to various depth positions so as to vary the resistance of said variable resistance element, and means electrically connected to said variable resistance element for sensing the changes in resistance thereof and converting such changes into an indication of the depth position of the source rod.
REFERENCES:
patent: 2150006 (1939-03-01), Parker et al.
patent: 3544793 (1970-12-01), Bless et al.
patent: 4146796 (1979-03-01), Campbell
patent: 4637254 (1987-01-01), Dyben et al.
Hannaher Constantine
Howell Janice A.
Troxler Electronic Laboratories, Inc.
LandOfFree
Nuclear measuring gauge with automatic detection of source depth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nuclear measuring gauge with automatic detection of source depth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear measuring gauge with automatic detection of source depth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-846032