LaCoste
& Romberg
l Scintrex CG-5 Autograv.
l Methods and Applications
LaCoste
& Romberg
Model D Microgal Gravity Meter
Allied Associastes Geophysical Ltd offer the LaCoste Microgal Gravity
Meter D-103 for hire.
A zero length spring suspension is used to attain high sensitivity, with
a lever system used to null the meter. The lever system acts on the main
spring rather than on a weak "measuring spring", thus reducing
hysteresis errorsand stabilizing the calibration. Drift is reduced to
less than 1.0 mgal per month by thermostating.
World Wide range with resetting
The Model D Gravity Meter has a fine micrometer screw with a 200-mgal
range and a range resetting screw which permits the gravity meter ot be
read anywhere in the world. Using the short range micrometer screw greatly
reduces errors caused by micrometer screw imperfections, which accounts
for most of the improvements in accuracy of the Model D Gravity Meter
over that of the Model G. A calibration factor is sufficiently accurate
and complete to reduce errors to about 0.01 mgal of the complete gravity
range.
| LaCoste quoted D Meter Specs |
|
Accuracy:
Better than .01 mgal Length:
19.7cm |
Allied
Associates
Concept House, 8 The Townsend Centre, Blackburn Road,
Dunstable, Bedfordshire, ENGLAND, LU5 5BQ
Telephone: +44 (0) 1582 606 999
Facsimile: +44 (0) 1582 606 991