TM9100 Precision Magnetometer Calibration Device

• This current source is a high-precision bipolar current standard source that can output dual-channel DC current to excite the magnetic field coil and electromagnet respectively. Each current output has high accuracy and stability, and the measurement uncertainty reaches class 0.01.

• The current output stability is better than 20 ppm/min, and the annual error change is better than 50 ppm.

• The current source can be continuously adjusted through program control, and has a small adjustment fineness, which facilitates the calibration of the pointer magnetometer.

• It has a large power output and can drive magnetic field coils or electromagnets to work for a long time under full load.

Specifications

Dual Current Range

50 mA、200 mA、1 A、5 A、20 A、50 A

Output Range

± 1 mA～ ± 50 A

Adjustment Fineness

0.001%*RG

Short Term Stability

20 ppm/min

Optimal Measurement Uncertainty

0.006%*RD①+ 0.004%*RG②

Full Scale Linearity

< 10 ppm

Annual Error Variation

< 50 ppm

Maximum Load Voltage

180V

Protection Function

Open circuit protection, overload protection function

Power Supply

AC ( 380 ± 38 ) V,( 50 ± 2 ) Hz,

Max. power consumption: < 10 kVA

Note: ① RD is the reading value, ② RG is the range value.

• A standard magnetic field of ± (0.1 mT ~ 100 mT) can be generated by excitation with a high-precision DC standard current source.

• Calibration of a DC magnetometer with a radial or axial probe.

• The stability and accuracy of a magnetic field depends entirely on the excitation current, and can be directly regarded as a standard magnetic field.

• Two sets of probe position intelligent adjustment devices are installed on the coil, which drive the probe to move and rotate in the Y/Z axis by a precision stepper motor, and determine the best test point by intelligent adjustment and positioning of software.

• The coil is not only suitable for DC magnetometer calibration, but also suitable for various research institutes, colleges, enterprises to conduct electromagnetic interference simulation experiments, material magnetic detection experiments, etc., which is widely used.

Specifications

Excitation Current

± ( 5 mA～20 A )

Magnetic Field Range

± ( 0.1 mT～100 mT )

Magnetic Field Uniformity

The uniform field within 20 mm is better than 300 ppm

Magnetic Field Linearity

The magnetic field is proportional to the excitation current

Temperature Influence

The coil constant K changes little with temperature

Inner Hole Diameter

200 mm

Size

680 mm x 700 mm x 450 mm (W x D x H)

Weight

Approx 120 kg

• Two specifications of polar are optional, which can generate a stable magnetic field of up to 2.6 T.

• Optional PT2025 or PT2026 nuclear magnetic resonance magnetometer as a standard meter.

• There is a good linear relationship between magnetic field and current, and the stability of the magnetic field depends on the excitation current.

• Equipped with an intelligent probe position adjustment device, which can intelligently adjust the positioning through software to determine the best test point.

• The input power/magnetic field ratio of the electromagnet is small, and it can work stably for a long time without water cooling.

Specifications

Excitation Current

± ( 5 mA～50 A )

Polar

280 mm-140 mm

280 mm-200 mm

Magnetic Field Range

± ( 20 mT～2.6 T )

±( 20 mT～2.5 T )

Magnetic Field Uniformity

Uniformity within 5 mm is better than 150 ppm

2.1T: Uniformity within ± 10 mm is better than 250 ppm

2.1T: Uniformity within ± 20 mm is better than 1000 ppm

2.5T: Uniformity within ± 5 mm is better than 250 ppm

2.5T: Uniformity within ± 10 mm is better than 1000 ppm

Air Gap

15 mm

16 mm

Size

700 mm x 1100 mm x 1000 mm (W x D x H)

Weight

Approx 2000 kg

• The shielding frame is made of a shielding material with high magnetic conductivity, which removes the effects of the geomagnetic field.

• The internal magnetic field <10-6 T, which can be directly regarded as zero magnetism when calibrated.

• Small, lightweight (about 1kg), compact and easy to carry.

• The device is suitable for calibrating the zero point of a standard or calibrated magnetometer.

• The device has 13 RS232 interfaces, 12 of which are used to control a total of 12 precision stepper motors on four sets of probe positioning systems (two sets each of magnetic field coils and electromagnets).

• The other RS232 is used for computer communication. The stepper motor is controlled through software or wireless mouse remote control to drive the Hall probe to move or rotate in the Y/Z axis and W angle to determine the best magnetic field test point.

• The four sets of intelligent probe position adjustment devices are all made of non-magnetic materials.

Axis

Range Of Stroke/Angle

Adjustment Fineness

Y

50 mm

0.1 mm

Z

60 mm

0.1 mm

W

± 12°

0.1°

• The software automatically recognizes whether an accessory is communicating properly with the PC, and visually displays in the configuration interface.

• The selected excitation mechanism is visually displayed in the interface of the software and can be freely switched.

• The calibration parameter units: mT, G, kG, Oe, kOe, A/m, kA/m.

• The software controls the Y axis, Z axis, and W axis of the standard probe and the probe to adjust the best test point of the probe, or enter the wireless mouse control mode.

• Automatically prompts you to switch between the range and the calibrated value of the input, and automatically enters the standby state if no input is entered within 2 minutes.

• Automatically calculates zero drift, which exceeds the permissible zero drift and is marked in red.

• An error is automatically calculated and compared to the permissible error, warning you with a red light for an excess value.

• Test data can be generated and exported as a calibration report.