This differs from the faster peak capture feature that operates on broadband, unprocessed field reading information. 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. For the complete solution, Lake Shore offers a full complement of standard and custom Hall effect probes in a variety of sizes and sensitivities. The second voltage output provides a voltage proportional to measured field with the benefits of some signal processing. Selectable band-pass and lowpass filters allow users to reject unwanted signals and improve measurement performance.
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Both of these properties limit the ability of the digital representation to match the original analog signal. This is ideal for most magnetizers and other fast pulse applications.
This output is generated from the data after the product detector gaussmeted is a representation of the actual field being measured.
The uncalibrated version requires the operator to load the matching probe data file into the cable PROM directly from the Model labvifw panel.
The gaussmeter reads the probe information on power up or any time the probe is changed to allow hot swapping of probes. Relative feature calculates the difference between a live reading and the relative setpoint to highlight deviation from a known field point.
Lake Shore DSP Gaussmeter – Coherent Scientific
We also offer other probes beginning on page All probe compensation available to the display readings, including temperature compensation, can be performed on this output. Follows alarm or operated manually Connector: Lake Shore recommends an annual recalibration schedule for all precision gaussmeters. The Model has several capabilities that allow the best possible measurements with Lake Shore probes.
Although temperature effects contribute only a small fraction of the overall probe measurement accuracy, temperature compensation will often improve measurement and control stability. Internal memory provides storage for 1, field readings in a data buffer.
LED annunciator, beeper, and relays Relays Number: The mofel reading can be held for an unlimited length of time with no sag. Relative feature calculates the difference between a live reading and the relative setpoint to highlight deviation from a known field point.
The gaussmeter can be configured to follow the peak of a periodic waveform for evaluation of crest labbview. Voltage output 3 The third voltage output provides a voltage proportional to measured field with the most signal processing of the three outputs. The complex nature of Hall effect measurements make it necessary to match extension cables to the probe when longer cables are needed.
Display and Interface Features.
Lake Shore Model 455 DSP Gaussmeter
Using DSP gives better measurement repeatability and increases the temperature stability of the instrument. When setting instrument parameters, the display gives the operator meaningful prompts and feedback to simplify operation.
User-specified defaults same as Voltage Output 2 Resolution: Indicated by number of digits in above table Max reading rate periodic mode: Voltage output 1 Configuration: 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. In peak mode, the output can be used to view a pulse shape or other characteristic of a momentary signal.
Model | Downloads | Lake Shore Cryotronics, Inc.
If no sensitivity information is available, the Model reverts to resistance measurement. Real-time analog voltage output of wide band AC signal Range: Others available starting on page Stored readings can then be retrieved over interface at slower speed and processed offline.
Single Hall effect sensor Probe features: Measurement resolution RMS noise floor: Slower sample rates can be programmed if desired.
Keeping probes and their extensions from getting gausxmeter up can become a problem when more than one probe is in use.
Selectable band-pass and lowpass filters allow users to reject unwanted signals and improve measurement performance. Alarm and relay High and low alarms are included in the instrument.