Lake Shore Cryotronics Measure Ready M91 FastHall, Руководство пользователя

Страница: 33 / 195

23
|
www.lakeshore.com
1.9.4 Resistance Range Along with Hall mobility and other sample parameters, resistance measurements are
one of the fundamental building blocks that define the capabilities and performance
specifications of your M91. In order to enable measurement of the broadest range of
materials, it is critical that your system be capable of measuring a very wide range of
resistances.
Like the mobility range, the M91 offers the widest possible resistance range. The M91
takes great care in controlling low currents and small voltages present in electron
transport systems. While the standard configuration is capable of measuring resis-
tances from 0.5 M
)
to 10 M
)
, resistance measurement options allow you to measure
resistances all the way down to 10 µ
)
and as high as 200 G
)
when working in DC
fields. The high end is limited to 8 G
)
when working in AC field. This wide resistance
range ensures you can study the broadest range of materials.
1.9.5 Magnet
Configuration The M91 FastHall™ measurement controller is designed to work with any magnet
system including:
D
Permanent magnets
D
Electromagnets
D
Superconducting magnets
D
Pulsed magnets
FastHall™ technology eliminates the need for magnetic field reversal when measur-
ing van der Pauw samples.
1.10
Specifications For specifications, see: https://www.lakeshore.com/M91 / .
TABLE 1-2
Key specifications
Feature Description
Ambient temperature
23 °C to ± 5 °C at rated accuracy
10 °C to 35 °C at reduced accuracy
Power requirement 100 V to 240 V (universal input), 50 Hz or 60 Hz, 30 VA
Size
217 mm wide × 87 mm high × 369 mm deep
(8.5 in × 3.4 in × 14.5 in), half rack
Weight 3.2 kg (7 lb)
Approval CE mark