An ADC will sample a signal at fixed intervals of time. The complex nature of Hall effect measurements make it necessary to match extension cables to the probe when longer cables are needed. Voltage output of field value, generated by DAC Range: Stored readings can then be retrieved over interface at slower speed and processed offline. Data buffer Internal memory provides storage for 1, field readings in a data buffer. The Hall voltage produced by the sensor is fed back into the instrument and sent through a programmable gain stage.
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Max Peak Hold Mode — the display configured to both show the positive and negative Peak readings. Allows the user to zero all ranges for the selected measurement mode with the push of a key. User-specified defaults same as Voltage Output 2 Resolution: In analog processing, the components used have different values from component to component and are temperature dependent.
The Model has a two line by 20 character vacuum fluorescent display. This output can also be used for field control. The uncalibrated version involves the operator leading the matching probe data file into the cable PROM directly from the Model front panel. Voltage output 3 The third voltage output provides a voltage proportional to measured field with the most signal processing of the three outputs.
When operating in RMS mode, the gaussmeter can display the gausseter of the measured AC field along labbiew a field reading.
Internal memory provides storage for 1, field gausssmeter in a data buffer. Follows alarm or operated manually Connector: Keeping probes and their extensions from getting mixed up can become a problem when more than one probe is in use.
This page location is: The most commonly ordered probes for this gaussmeter. This is ideal for most magnetizers and labciew fast pulse applications. The instrument has a position keypad with individual keys assigned to frequently used features.
The Model can also be used to sample field changes at readings per second that can later be read over the interface to illustrate the shape of pulses or other waveforms.
Follows alarm or operated manually Connector: The uncalibrated version requires the operator to load the matching probe data file into the cable PROM directly from the Model front panel.
The Model provides an overall RMS frequency range of 10 Hz to 20 kHz and Measurement features is equipped with both narrow and wide band frequency modes. Recalibrations are always available from Lake Shore, but the Model allows users to field calibrate the instrument if necessary.
An IEEE software-based trigger can be used like the lagview trigger in. In this mode, the gaussmeter takes advantage of the internal auto zero function and probe linearity compensation to provide its best accuracy. Temperature Measurement Temperature range: Hall effect devices show a slight change in sensitivity and offset with temperature.
Lake Shore Model 455 DSP Gaussmeter
Users gaussketer program nominal sensitivity and serial number into an optional MCBL-6 blank connector to provide all gaussmeter functions except field and temperature compensation. See the table on page 25 for our stock probes recommended for use with this gaussmeter.
The first voltage output gives access to amplified voltage signal directly from the probe. The Hall voltage produced by the sensor is fed back into the instrument and sent through a programmable gain stage.
Or visit the Hall probe selection guide. The reading rate over the gaussmter is nominally 30 readings per second but settings from 10 to readings per second are available.
Model | Overview | Lake Shore Cryotronics, Inc.
The display can also be configured to show probe temperature or frequency. The keypad can be locked out to prevent unintended changes of instrument setup. General measurement Does not include probe error, unless otherwise specified Input type: LED annunciator, beeper, and relays Relays Number: Indicated by value in above table for periodic mode and shorted input Display resolution: The second voltage output provides a voltage proportional to measured field with the benefits of gaussmetrr signal processing.