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Magnetic Field Measurement 
 
GMW offers a broad range of Fluxgate, Hall Effect, NMR, and Fluxmeter based magnetic field measurement sensors and instruments together with in-depth technical support.

 Magnetic Sensors
Special Sale Offers
Discontinued Products
Magnetic Units
Magnetic Field Vectors
Occupational Magnetic Fields
 
 
 
Specifications
Application Product Range Resolution Bandwidth
Fluxgate Instruments and Transducers
High sensitivity and accuracy for low magnetic fields. Magnetic fields from appliances and equipment, site surveys and monitoring. Active magnetic field cancellation. Mag-01
MAG-01
1-axis 		± 2mT 0.1nT DC - 10Hz
Mag-03
MAG-03
3-axis 		± 1mT 0.1nT DC - 3kHz
 Three-Axis Magnetic Field Sensor
Ametes Three-Axis Magnetic Field Sensor. Three Sentron CSA-1V with sensitive axes mutually perpendicular. Three analog output signals for Bx, By, and Bz. MFS-3A
MFS-3A		 ± 7.3mT ±10μT DC - 100kHz
Ametes Three-Axis Magnetic Field Demonstrator. Self contained instrument used to demonstrate and
monitor the output voltages from the Ametes MFS-3A 3-axis Magnetic Field Sensor.		 MFS-3A
DMFS-3A		 ± 7.3mT ±10μT DC - 100kHz
 Linear Hall Transducers
'Miniature type Sensor' linear magnetic field measurement, feedback control, field mapping, and quality control YM12
YM12-3-5-0.2T
1-axis 		± 0.2T ± 12µT DC - 1kHz
YM12-3-5-2T
1-axis 		± 2T ± 12µT DC - 1kHz
CH3A2ME3A1-0.2T
3-axis 		± 0.2T ± 12µT DC - 2.5kHz
CH3A2ME3A1-2T
3-axis 		± 2T ± 12µT DC - 2.5kHz
 Hand-held Hall Teslameters
Hand-held, low-cost, 3-axis magnetic field measurement for magnet and fringing fields 7025
THM 7025
3-axis 		± 2T ± 10µT DC

 Precision Digital Hall Teslameters
Precision measurement and control of magnetic fields for laboratory and process control DTM151
DTM-133
1-axis 		± 3T ± 5µT DC - 10Hz
DTM-151
1-axis		 ± 3T ± 0.1µT DC - 3Hz
Very High Precision NMR Teslameters
Calibration of magnetic standards. Very high resolution and stability measurement of magnetic fields. Measures total magnetic field at a single point. PT2025
PT 2025
Total field 		± 13.7T ± 0.1µT DC
FW101
FW 101
Total field 		± 2.1T ± 0.5nT DC
Fast, very high resolution mapping of MRI imaging magnets with an array of probes. MFC3045
MFC 3045
Total field 		± 7.0T ± 0.01µT DC
Digital Voltage Integrators / Fluxmeters
Precision flux change measurement. PDI5025
PDI 5025
Flux change		 40V.s 2E-8V .s 1ms - 223ms
PDI 5035
Flux change		 40V.s 2E-8V .s 0.25ms - 223ms
 
 
Conversion of gauss to tesla:
1µG = 0.1nT, 1mG = 100nT, 1G = 100µT, 10G = 1mT, 10,000G = 1T

Relationship between Magnetic Flux Density (B) and Magnetic Field Strength (H):
 In vacuum (or air) B=µoH. For SI units µo = 4pi x 10-7H/m, B is expressed in Tesla and H in Ampere turn/m or A/m. Hence in vacuum or air a flux density of 1T = 796kA/m.
For cgs units µo = 1, B is expressed in gauss and H in oersted. Hence in vacuum or air a flux density of 1 gauss = 1 oersted.
For further information visit the NIST Reference on Constants, Units, and Uncertainty

 Last updated on: 28 February, 2008
 
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