GAUSSMETER DSP MODEL 475 LABVIEW DRIVER

Relative feature calculates the difference between a live reading and the relative setpoint to highlight deviation from a known field point. Signal quality degrades at high frequency because of the sampling rate. Menus are reserved for less frequently used setup operations. Real-time analog voltage output of wideband AC signal Range: An IEEE software-based trigger can be used like the hardware trigger in.

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The Model has several capabilities that allow the best possible measurements with Lake Shore probes.

Normal Reading — the display configured to show the RMS field value and frequency, and the probe temperature. Users can program nominal sensitivity and serial number into an optional MCBL-6 blank connector to provide all gaussmeter functions except field and temperature compensation.

Menus are reserved for less frequently used setup operations. The complex nature of Hall effect measurements make it necessary to match extension cables to the probe when longer cables are needed. When operating in RMS mode, the gaussmeter can display the frequency of the measured AC field along with a field reading up to 20 kHz.

The reading rate over the interface is nominally 30 readings per second but ranges from 10 to readings per second are available. Probe temperature effects can be measured and subtracted out of field readings.

This output can also be used for field control.

Lake Shore Model 475 DSP Gaussmeter

Recalibrations are always available from the factory, but the Model allows users to field calibrate the instrument if necessary. The Model offers a variety of features to enhance the usability and convenience of the gaussmeter. Indicated by digit number in above table Max reading rate esp mode: Both allow setup of all instrument parameters and read-back of measured values.

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Hall effect generators magnetic field sensors: Moedl measurement mode Static or slowly changing fields are measured in DC mode.

Model | Specifications | Lake Shore Cryotronics, Inc.

Indicated by number of digits in above table Max reading rate periodic mode: The Model provides an overall RMS frequency range of 10 Hz to 20 kHz and Measurement features is equipped with both narrow gaussmeted wide band frequency modes. This page location is: A TTL-level hardware trigger into the instrument can be used to initiate the data log sequence. Although temperature effects contribute only a small fraction of the overall probe measurement accuracy, temperature compensation will often improve measurement and control stability.

Probe temperature effects can be measured and subtracted out of field readings. The Model has three different analog outputs, each one providing different information.

Lake Shore 475 DSP Gaussmeter

Relative feature calculates the difference between a live reading and the relative setpoint to highlight deviation from a known field point. The complex nature of Hall effect measurements make it necessary to match extension cables to the probe when longer cables are needed.

Following are three examples of the various display configurations: Through computer interface after data is logged Trigger: Critical probe information can be viewed on the front panel and read over the computer interface to ensure proper system configuration. In wide band AC mode, the signal can be viewed on an oscilloscope to observe gaussmerer shape of AC fields. Model probes are calibrated in this way to provide the most accurate DC readings.

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The keypad can be locked out to prevent unintended changes of instrument setup. One of the built-in analog voltage outputs drives the program input of the power supply for either bipolar or unipolar operation.

gausmeter If no sensitivity information is available, the Model reverts to resistance measurement. Output 1 serves only as a diagnostic tool in DC and narrow band AC modes because modulation of the probe signal prevents a clear view of the field response.

Signal quality degrades at high frequency because of the sampling rate. When setting instrument parameters, the display gives the operator meaningful prompts and feedback to simplify operation. Follows alarm or operated manually Connector: Normal reading—the display configured to show the RMS field value and frequency, and the probe temperature Max DC hold on—the display configured to show both the Maximum and Minimum DC field values Max peak hold on—the display configured to both show the positive and negative Peak readings Field control on—the display configured to show the field control setpoint and current field value, when field control is active Keypad The instrument has a position keypad with individual keys assigned to frequently used features.