Specimen size: Up
to 1 " x 1" (2.54cm) cylindrical
specimen. Integration time: Either 6 seconds
(24 spins), or 24 seconds (1 20 spins).
Sensitivity/Noise level: 2.5 x 10-8
EMU.CM-3 (2.5 x I 0-5 A/m) for 4 spins at
the 24 secs time constant.
Data output: On single 5-digit liquid
crystal panel, with figures 9mm high. The
display normally indicates the'NORTH'component.
The 'EAST' component is obtained by the press
of a button. One (two) figures after the decimal
point are indicated for 6 secs (24 secs integration
time)
The data is also available via an RS232 serial
link that also controlls the instrument. .
Data processing: A serial interface
which can be fitted inside the minispin allows
it to be controlled from a computer. The interface
is a RS232, working at 4800 bauds. It controls
the minispin and passes the results back to
the computer. If a notebook computer is used
the kit becomes fully portable. The programs
are written in Basic (the source code is provided)
and can be modified by the user to suit particular
requirements. There is also a Windows version
and a Macintosh version of driving software.
A USB (Universal Serial Bus) interface is
now available.
