Vector/Magnitude Gaussmeter Model VGM
Manufactured in the USA by AlphaLab, Inc.Vector
Gaussmeter Model VGM
A gaussmeter
optimized for fastest measurement of magnetized materials and for mapping of
fields.
SKU: VGM
Available Options (also available for individual purchase below):
Hard Carrying Case: $30
Optional Add-On:
Zero Gauss Chamber (to obtain near absolute zero magnetic field): $160
Product Description:
The Vector
Gaussmeter displays the true magnitude of the field at any location as well as
the X, Y, Z components of up to 800 gauss. Also separately displays peak values
of X, Y, Z, and magnitude. There is a sound alarm that determine the locations
where the field magnitude exceeds user-set threshold. Because magnitude is
measured, the orientation of the sensor (E-W, N-S, and up-down) is not
important; this is unlike a 1-axis gaussmeter. With the VGM the user can set
the alarm to 15 gauss (for example) and it will sound (simultaneous with a red
light) whenever the field exceeds 15 gauss for at least 5 milliseconds. Using
the meter this way, it is easy to make a map of the 15 gauss line (or for
whatever threshold is set) around a strong magnet. When using the alarm, of a
steel part can be rapidly scanned to show if any areas exceed the set
threshold. Then the “peak hold” function can be interrogated, showing the peak
values of X, Y, Z (including polarity) and magnitude that occurred during the
scan. Peak hold also has a 5 millisecond response time. The “reset” button resets all peak hold
registers to the present values of X, Y, Z and magnitude, which are displayed in real
time when the knob is set to “measure.” Offsets can be manually applied to X,
Y, and Z, or a “relative zero” can be applied to all three. This subtracts out
the field at the time the button was pressed.
Features:
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Displays the magnitude of magnetic field regardless of probe orientation. Also can display X, Y, or Z components.
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When set to “Peak Hold”, displays the highest magnitude since the last time “Reset” was pressed. Also remembers and can display peak value of X, Y, Z (including polarity) since the last “Reset.”
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Continuous sampling and magnitude calculation every 5 milliseconds; the peak of X, Y, Z and magnitude will be accurate even if they occurred at different times.
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Sound alarm and light for rapid feedback if the field exceeds threshold you set.
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Relative zero and manual offset functions independently for X, Y, Z.
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Includes battery, AC Adapter, alarm output (open/closed switch)
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CE Compliant.
Applications:
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Very fast screening of parts for residual magnetism. By using the alarm and peak hold functions, partially magnetized parts can be characterized with a minimum of effort, regardless of whether the field is oriented in an unexpected direction.
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Rapid mapping of magnetic field, such as from an MRI. Use the alarm functions, for example, to find the 5 gauss contour without worrying about the probe orientation.
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Use as a laboratory X, Y, Z and magnitude magnetometer. Also measures transient field, even if a pulse occurs once for 5 milliseconds within a period of days.
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SPECIFICATIONS: 3-axis DC Gaussmeter VGM |
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Range/Resolution: 0-799.99 G/ 0.01 G. Includes polarity of X, Y, Z. Magnitude = is sqrt of sum of squares. |
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Accuracy: 1% of reading (16° |
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Offsets: Relative zero (subtracts present
field from X, Y, Z);Unlimited manual offset of X, Y, Z. |
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Probe: 3-axis nondetachable 6.3 x 6.3 x 50
mm long. All three sensors are within 1.5 mm of |
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Peak Hold: 0.005 sec time constant. Peaks in X, Y, Z and magnitude are recorded and stored separately. |
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Alarm: Associated with magnitude only, 5
millisecond response time; Simultaneous red light. |
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Alarm
Levels: 100 levels
can be selected, from 1.00 to 7999.00 G |
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Meter Size: 5.8 x 3.8 x 2.0 inches (includes
boot) |
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Weight: 11.7 oz |
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Battery: 9 volt alkaline ( |
