REDUCING THE DRIFT RATE OF AIRBORNE GRAVITY MEASUREMENT SYSTEMS

摘要

A temperature control device for use with airborne measurement in geological and geophysical surveys. The device includes a thermally insulated housing for mounting into an airborne vehicle and within which electronic survey equipment is located in use, and temperature control means for maintaining the temperature within the housing at a selected value. Preferably the housing has control apparatus mounted thereto for selecting the temperature within the housing. The temperature control means may be capable of raising and/or lowering the temperature within the housing relative to ambient temperature. Preferably the temperature within the housing is maintained at a value of between 10°C and 25°C, at the option of the operator thereof. Typically the device may house a gravity meter, for example. The invention extends to a method of obtaining geophysical data using measurement equipment housed in a temperature controlled housing.