|
A sensitive
and accurate
tool for field
measurement of
susceptibility
of outcropping
rocks, drill
cores or rock
samples
특징
-
HIGH
SENSITIVITY
1 x
10-7
SI
UNITS
The
sensitivity
is 100
times
better
than the
competitive
instruments.
-
SMALL
SIZE AND
LOW
WEIGHT
The SM-30
is truly
shirt
pocket-sized
instrument.
With
dimension
100 x 65 x
25 mm and
weight
0.180 kg.
SM-30
outperforms
competitors
3
times.
-
LOW
NOISE
Thanks to
sophisticated
signal
processing
the noise
induced in
pick-up
coil is
suppressed
well under
resolution
1 x
10-7
SI
units.
-
DEEP
PENETRATION
OF THE
SIGNAL
The sensor
design
enables to
get 90 %
of its
signal
from the
first 20
mm of the
rock. This
feature
allows
more
accurate
readings
on uneven
surfaces
of all
rock
types.
-
SIMPLE
OPERATION
Auto-ranging
and
three-button
control
makes the
meter the
easiest to
operate by
one hand
only.
Internal
memory can
store 250
readings.
-
WARRANTY
One-year
warranty
is
included
in the
price. We
offer 48
hours
turnaround
support
and repair
service
for any
instrument
sent from
any
location
worldwide.
Subsequent
customer
support is
provided.
일반설명
The
SM-30 is small magnetic
susceptibility meter. Thanks
to the high sensitivity we can
measure sediments and rocks
with extremely low level of
magnetic susceptibility. In
addition, we can distinctly
measure diamagnetic materials
like limestone, quartz and
also water.
The
SM-30 is controlled by three
push buttons. One of them
serves to save up to 250
measured values into
nonvolatile memory and to
recall them later. The 251th
value (the last measured one)
is automatically displayed
after SM-30 is switched on. If
no button is pressed for 3
minutes, the instrument
switches off automatically.
The SM-30 has a beeper
indicating intervals in which
the information from the rock
is picked-up.
The
SM-30 is powered from two coin
lithium batteries CR2430. If
the instruments is not used
too extensively, the batteries
may last for years thanks to
their low
self-discharge.
센서(Sensor)
The
SM-30 has 9 kHz LC oscillator
with a large size pick-up coil
as a sensor. The oscillation
frequency is measured
when
-
the
coil is put to the surface
of measured rock
-
the
coil is removed tens of cm
away.
The SM-30 offers four
measuring modes. Three of them compensate the
linear part of the thermal drift.
The large number of the
memory registers (250) is useful especially
when scanning mode is used.
Though the instrument
is small, the pick-up coil is large enough in
diameter to measure sufficiently high
volume.
사양
|
감도
|
1 x
10
-7
SI
units
|
|
작동
주파수
|
9
kHz
|
|
측정시간
|
Less
than 5 s
|
|
디지털
화면
|
4
digits LCD
|
|
조절
|
3
push buttons
|
|
Pick-up
coil
|
50
mm in diameter
|
|
작동온도
|
-20°C
to 50°C
|
|
Battery
|
2
lithium CR2430
|
|
Battery
수명
|
Approx.
80 hrs
|
|
치수
|
100
x 65 x 25 mm
|
|
중량
|
0.180
kg
|
|
PC
interface
|
RS232C
|
|
표준부속품
|
Operating
manual,
RS232 cable,
PC software for data
transmission and for
external control.
|
안정적인 그래픽
|
|
Noise
of the SM-30
The measuring by SM-30 is
done in 15 second
intervals. Measured data
is transmitted to the
computer with the
resolution 1 x
10
-8
SI
units. The test was done
with the programmer
SM-30w, which is included
in standard supply
accessories.
|
|
SM-30 사용
예
|
|
|
|
|
