PASCO PS-2162 2-Axis Magnetic Field Sensor - Manual (Page 2)

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M o d e l N o . P S - 2 1 6 2 M e a s u r i n g M a g n e t i c F i e l d
2
Note: If you do not have a zero-gauss chamber, pressing the Tare button
may result in a small offset to subsequent measurements due to the
earth’s magnetic field. To “undo” the tare, briefly disconnect the sensor
from the interface.
Measuring Magnetic Field
In the software or on the interface, start data collection to begin
recording magnetic field strength along both axes in units of
gauss (G). Position the sensing elements (marked by white dots)
at the location to be measured and orient the sensor with the field
lines.
Note: For more information about using your PASPORT interface, refer to
the documentation that came with it. For instructions on using DataStudio,
press F1 or open the Help menu.
Resolution and Sampling Rate
The sensor uses dynamic variable over-sampling to achieve the
best resolution possible for a given sampling rate. At the default
sampling rate of 10 Hz, the resolution is 0.01 G. To improve the
resolution, set a lower sampling rate in the software or on the
interface. The best resolution occurs when sampling at 1 Hz or
slower.
Hardware Mounting
The sensor includes a captured ¼-20 nut, which you can use to
fasten it to the included sensor handle, a rod, or other apparatus.
The sensor handle can be used to mound the magnetic field sen-
sor on a rotary motion sensor (part PS-2120). With the sensor
mounted in this way, it may be necessary to use the included
extension cable to connect the interface.
Suggested Activities
Earth’s Magnetic Field
Set the sampling rate to 5 Hz. Start data collection and slowly
rotate the sensor while observing Axial and Perpendicular field
strengths on a graph display. As you change the angles of the
sensing elements relative to the earth’s field, you will see the
measurements vary.
For a more quantitative study, use the included sensor handle to
mount the magnetic field sensor on a rotary motion sensor (part
PS-2120) and record field strength as a function of angle.
Magnetic Field of a Coil
Use the sensor to measure the field of a coil as a function of cur-
rent through the coil or position within the coil. Rotate the sensor
to find the direction of field lines at various locations near the
coil.
Specifications
Technical Support
For assistance with any PASCO product, contact PASCO at:
Limited Warranty
For a description of the product warranty, see the PASCO catalog.
Copyright
The PASCO scientific 012-09324B
2-Axis Magnetic Field Sensor Instruc-
tion Sheet is copyrighted with all rights reserved. Permission is granted to
non-profit educational institutions for reproduction of any part of this man-
ual, providing the reproductions are used only in their laboratories and
classrooms, and are not sold for profit. Reproduction under any other cir-
cumstances, without the written consent of PASCO scientific, is prohibited.
Trademarks
PASCO, PASCO scientific, DataStudio, and PASPORT are trademarks or
registered trademarks of PASCO scientific, in the United States and/or in
other countries. For more information visit www.pasco.com/legal.
Axial
Perpendicular
White dots mark
positions of sensing
elements
¼-20 nut
Range ±1000 G
Accuracy 5% of reading @ 25 °C after 4
minutes’ warm-up and Tare using
zero-gauss chamber
Resolution 0.01 G @ 10 Hz sampling rate
Maximum Sampling Rate 1000 Hz
Repeatability 0.05%
Address: PASCO scientific
10101 Foothills Blvd.
Roseville, CA 95747-7100
Phone: 916-786-3800 (worldwide)
800-772-8700 (U.S.)
Fax: (916) 786-7565
Web: www.pasco.com
Email: [email protected]