Magnetic Field Sensors

5 Hz to 1 MHz

These  passive magnetic field sensors provide an output AC voltage accurately calibrated to the AC magnetic field strength. The frequency of the AC output voltage is the same as the frequency of the magnetic field. Each sensor below undergoes a NIST traceable calibration for accuracy. These sensors offer a convenient, low-cost troubleshooting tool.

To see the frequency response of these sensors click here.

Case

Style

A

B-thin

C

C

B-thick

A-wire

A

A

B-thick

A

A

These sensors are single-axis, so they respond to fields parallel to the sensor axis. The sensor orientation shows the magnetic field polarization. No battery or power supply is needed for the sensors. These sensors require a display instrument  (not included) such as AC voltmeter, oscilloscope or spectrum analyzer to display  the output AC voltage. These sensors  have no minimum measurable field strength, so the sensitivity will depend on your display instrument. Maximum field: the sensor can be damaged above approximately 50 Volts output. Sensor includes operating instructions.

For more information click on a Sensor Model name in the table above.

Frequency Range:

The table above shows the frequencies over which the sensor output voltage is at least 70% of the magnetic field strength in Gauss (Volts/Gauss > 0.7). Sensors can also be used below this frequency range, but will have lower output voltage. See sensor curves by clicking on the Sensor Model.

Calibration:

Each individual sensor is tested to ensure NIST traceable accuracy. For some models the calibration data is also recorded (as stated in the above table) and the recorded data is shipped with the sensor.  Calibration of the above sensors was done with a high impedance voltmeter. For more calibration information  click here.

Case Styles (pictured at top of page):

"A" is rectangular, 2.06" x 1.58" x 1.16"  (52x40x29mm) and has a BNC(f) output connector on the case..

Typical weight  is 3.3 oz (95 g). (Coax cables are available for $15).

"B-thin" is cylindrical 5.25" long x 0.75" wide (133x19mm) and the output connector is BNC(m) at the end

of an attached 33" long coax cable. Typical weight is 3 oz  (85 g).

"B-thick" is cylindrical 4.3" long x 1.25" wide (109x32mm) and the output connector is BNC(m) at the end

of an attached 31" long coax cable. Typical weight is 6.14 oz  (174 g).

"C" is the smallest: it is rectangular 1"x1"x0.8" and has a BNC(f) output connector on the case.

Typical weight is 1 oz (30 g).  ( coax cables are available for $15).

"A-wire" is same size as "A" but  no BNC connector; instead there are 3 insulated wires about 8-inches

long which provide differential output and a green center-tap.  Weight same as Case "A".

Frequency

Range

25 Hz - 3 kHz

2 kHz - 1 MHz

5 kHz - 1 MHz

5 kHz - 1 MHz

15 Hz - 50 kHz

20 Hz - 50 kHz

45 Hz - 50 kHz

40 Hz - 50 kHz

15 Hz - 300 Hz

20 Hz - 300 Hz

15 Hz - 180 Hz

 

Sensor

Model

MC95

MC162

MC110A

MC110R

MC90R

MC95RW

MC20

MC2025

MC910

MC876

MC858

Price

USD

$ 150.

$ 150.

$ 150.

$ 150.

$ 250.

$ 150.

$ 150.

$ 150.

$ 250.

$   95.

$   95.

Warranty and Disclaimer                                                                                      © 2012 Magnetic Sciences. All Rights Reserved

  

Sensor

Availability

In Stock

In Stock

In Stock

In Stock

Out of  Stock

In Stock

In Stock

In Stock

In Stock

In Stock

Out of Stock

If you have questions email us: 

Calibration of

Each Sensor

Tested

Tested & Recorded

Tested & Recorded

Tested & Recorded

Tested & Recorded

Tested & Recorded

Tested

Tested

Tested & Recorded

Tested

Tested