fluxset D/I instrument
Hegymegi, L. (1),
Szöllősy, J. (2), Merényi, L. (1), Domján, Á. (1), Hegymegi, Cs.
(1) MinGeo Ltd,
Budapest, Hungary (2) individual subcontractor
Using experiences of DS-1 digital
declination/inclination instrument, a new instrument was designed and
built. The mechanical part of this instrument is the same as at DS-1.
Optical angle measuring system was replaced to a similar digital one
for horizontal and vertical angles but a new graduated circle was
produced on a thin silicon disc. The stability and precision of this
angle reading system is higher than the previous one.
In DS-2 the fluxset magnetometer electronics transmits magnetometer
output value together with horizontal and vertical angle data to a
tablet PC through Bluetooth connection. Measurement data are stored in
the tablet together with time label. The built-in GPS receiver of the
tablet assures the precision of time stamp.
Scalar magnetometer’s serial data output can be connected directly
to the USB port of the tablet or alternatively transmitted via
Bluetooth using a small electronic unit powered by the scalar
The tablet is used as data display and data recording. Recording is
carried out when a push button pressed on a remote controller. Same
commander is used to delete last recorded data if necessary. After the
measurement session data can be downloaded to a memory card or to the
processing PC using Wi-Fi connection.
Data display gives some additional useful information for the operator
as the following measurement position of the telescope or charging
status of the batteries etc.
All instrumentation is running from battery at least for six hours and
charging is possible using 12 V DC or 230 V (115 V) AC.
In this paper the new instrument and some measurement experiences are
presented and discussed.