Lake Shore 460, User Manual

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Lake Shore Model 460 Gaussmeter User’s Manual
Introduction
1-1
CHAPTER 1
INTRODUCTION
1.0 GENERAL
Lake Shore Cryotronics designed and manufactured the Model 460 3-Channel Gaussmeter in the
United States of America. The Model 460 is a high-accuracy, full-featured gaussmeter ideally suited
for the laboratory. Model 460 features include:
• 3 Axis or 3 Independent Channels
• Displays Each Axis Simultaneously
• Vector Magnitude Reading
• Resolution to 5¾ Digits
• Accuracy to ±0.10% of Reading
• Peak Capture
• Analog Voltage Outputs
• IEEE-488 and Serial Interface
1.1 PRODUCT DESCRIPTION
The Model 460 three-channel Hall effect gaussmeter is the best choice for applications requiring three
axis measurements or three simultaneous single axis measurements. This instrument combines the
performance of three Model 450 Gaussmeters into one package, making it an excellent value. The
large display shows readings for all three channels simultaneously. The fourth display can be used
to show Vector Magnitude when necessary.
Probes
The Lake Shore strength in magnetic measurement instrumentation is rooted in the ability to make
Hall effect sensors and probes. This strength is most apparent when multiple axis measurements are
required. The Model 460 is optimized for use with Lake Shore two- and three-axis probes as well as
standard Hall sensors, single axis probes, and probe accessories. The instrument automatically reads
data stored in the probe connector to identify probe type and capability. If standard products are not
sufficient, custom probes and assemblies are can be made to order.
Measurement Features
Easy access to probe information that is stored in the probe allows several features which improve the
measurement capability of the instrument. Probe type tells the instrument how to configure itself for
multiple axis measurements and what field ranges are available for display, autorange, and automatic
probe zero. With a factory calibrated linearization table, the instrument can compensate for inherent
nonlinearity in the sensor and calculate the field more accurately than a single point sensitivity would
allow. If the probe is equipped with a temperature sensor, the Model 460 reads temperature along with
the field signal and makes continuous adjustments to the calculated field value. Vector magnitude
calculations can be done by the instrument when using two- and three-axis probes.
460_Front.bmp
Figure 1-1. Model 460 Front Panel