The probe connection The Model is only half of the magnetic measurement equation. The reading rate over the interface is nominally 30 readings per second but settings from 10 to readings per second are available. An IEEE software-based trigger can be used like the hardware trigger in. While in narrow band mode, frequencies above 1 kHz are filtered out for improved measurement performance. Both of these properties limit the ability of the digital representation to match the original analog signal. This output can also be used for field control.
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The display can also be configured to show probe temperature or frequency. In many cases, it provides the functionality of two or more instruments in a field measurement system.
Model probes are calibrated in this way to provide the most accurate DC readings. In wide band AC mode, the signal can be viewed on an oscilloscope to observe the shape of AC fields. The complex nature of Hall effect measurements make it necessary to match extension cables to the probe when longer cables are needed.
How the Model handles sampling Digital signals are different from continuous analog signals in the fact that they are sampled in time and quantized in amplitude. One of the built-in analog voltage outputs drives the program input of the power supply for either bipolar or unipolar operation.
Recalibration requires a computer interface and precision low resistance standards of known value. Both of these properties limit the ability of the digital representation to match the original analog signal. Menus are reserved for less frequently used setup operations.
This reduces interface overhead, enabling real-time reading rates up to new readings per second. General measurement Does not include probe error, dsl otherwise specified Input type: In wide-band AC mode, this represents the actual signal being generated by the Hall sensor.
In addition to manual range selection, the instrument automatically chooses an appropriate range for the measured field. Through computer interface after data is logged Trigger: This is ideal for most magnetizers and other fast pulse applications.
An IEEE software-based trigger can be used like the hardware trigger in. Critical probe information can be viewed on the front panel and read over the computer interface to ensure proper system configuration. Real-time analog voltage output of wide band AC signal Range: The second voltage output provides a voltage proportional to measured field with the benefits of some signal processing.
Hall effect devices show a slight change in sensitivity and offset with temperature. In this mode, the gaussmeter takes advantage of the internal auto zero function and probe linearity compensation to provide its best accuracy. Calibrated or uncalibrated probe extension cables with an EEPROM are available from 10 ft to ft — More information on Extension cable compatibility Lake Shore calibrated extension cables maintain the same accuracy as the Model probe.
The Model has several capabilities that allow the best possible measurements with Lake Shore probes.
Using DSP gives better measurement repeatability and increases the temperature stability of the instrument. See the table on page 25 for our stock probes recommended for use with this gaussmeter. Hall effect devices show a slight change in sensitivity and offset with temperature.
This voltage is corrected for the nominal sensitivity of the probe and provides the widest bandwidth of the three voltage outputs.
Indicated by number of digits in above table Max reading rate: Relative feature calculates the modl between a live reading and the relative setpoint to highlight deviation from a known field point.
This differs from the faster peak capture feature that operates on broadband, unprocessed field reading information. Measurement resolution RMS noise floor: Real-time analog voltage output of wide band AC signal Range: By country Product registration Request a catalog Request a quote Customer survey.
Autorange works in DC and AC measurement modes. This output is generated from the data after the product detector and is a representation of the actual field being measured. The Model will operate with a discrete Hall effect generator when a suitable probe is not available.