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TM9300 Fluxgate Magnetometer Calibration Device

TM9300 is a high-precision fluxgate magnetometer calibration device. It is suitable for calibrating single-axis and three-axis fluxgate magnetometers; it is suitable for metrology laboratories to establish weak magnetic field strength measurement and testing standards; it is also suitable for various research institutes, universities, and enterprises to conduct electromagnetic interference simulation experiments and material magnetic testing experiment, etc.
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  • TM9300

  • TUNKIA

TM9300 Fluxgate Magnetometer Calibration Device

*Reference only. Configuration and details may vary slightly corresponding to application.

1. Summary

TM9300 is a high-precision fluxgate magnetometer calibration device. It consists of a DC current standard source, a three-axis Helmholtz coil, a magnetic shielded cylinder, a three-axis flux gate precision magnetometer, and automatic calibration software. TM9300 is suitable for calibrating single-axis and three-axis fluxgate magnetometers; it is suitable for metrology laboratories to establish weak magnetic field strength measurement and testing standards; it is also suitable for various research institutes, universities, and enterprises to conduct electromagnetic interference simulation experiments and material magnetic testing experiment, etc. Reference standard: JJF 1519-2015 "Fluxgate Magnetometer Calibration Specifications".


2. Features

Equipped with a bipolar three-channel precision current source.

Three channels can output current synchronously or asynchronously.

The stability of the current source reaches 10 ppm/min.

The accuracy of the current source reaches 0.01 %.

Annual error variation is better than 100 ppm.

Use triaxial Helmholtz coil as magnetic field generator

The single-axis coil can generate a standard magnetic field of up to 1000μT.

Equipped with a special magnetic shielded cylinder, the internal magnetic field after degaussing is < 2 nT.

The coil can be placed in a shielding cavity to shield the interference from environmental magnetic fields.

The system adopts modular integrated design.

Equipped with calibration software.

3. Application

Calibrate Fluxgate Magnetometer

DUT: single-axis/three-axis fluxgate magnetometer.

Reference standard: JJF 1519-2015 "Fluxgate Magnetometer Calibration Specifications".

Application: calibration of magnetometer magnetic induction intensity, noise, zero bias, and time drift, etc.,



4. Specifications

4.1 Three-Channel DC Current Standard Source

This current source is a bipolar three-channel precision DC current standard source.

It can accurately output ± (0~500mA) DC current synchronously or asynchronously.

The current source can be continuously adjusted through program control, and has a small adjustment fineness.

The current output stability is better than 10 ppm/min, and the annual error change is better than 100 ppm.

Specifications

Output Range

± ( 0~500 mA )

Adjust Fineness

5 ppm*RG

Short Term Stability

10 ppm/min

Measurement Uncertainty (K=2)

0.006%*RD+ 0.004%*RG

Full Scale Linearity

< 10 ppm

Annual Error Change

< 100 ppm

Single Channel Maximum Load Voltage

20 V

Protective Function

open circuit protection, overload protection functions

Power Supply

AC ( 220 ± 22 ) V( 50 ± 2 ) Hz

Note: RD is the reading value, RG is the range vaule.


4.2 Triaxial Helmholtz Coil

The coil can be excited by a high-precision DC standard current source.

Each axis can generate a maximum standard magnetic field of ±1000 μT.

Specifications

Excitation Current

± ( 5 mA500 mA )

Maximum Magnetic Field (Single Axis)

± 1000 μT

Maximum Resultant Vector Magnetic Field

± 1732 μT

Magnetic Field Uniformity

Uniform field within 10 mm is better than 100 ppm

Magnetic Field Linearity

The magnetic field is proportional to the excitation current and has good linearity.

Temperature Influence

The coil constant K changes little with temperature, minimizing the influence of temperature.

Inner Hole Diameter

170 mm

Maximum Diameter

250 mm


4.3 TM4830B Fluxgate Magnetometer

TM4830B is a high-precision three-axis fluxgate magnetometer.

Equipped with a high-precision fluxgate probe with a 100μT range

Suitable for measuring the magnetic remanence and environmental magnetic field of magnetic shielded cylinders.

It can form a closed loop with the magnetic field generation system and realize feedback control through measured values.

Specifications

Single Axis Measuring Range

0± 100 μT

Resolution

0.01nT

Optimal Measurement Uncertainty (K=2)

0.2%

Linearity

< 0.0015%

Frequency Response

DC3 kHz

Noise (Typical Specifications)

6~10 pTrms /Hz@1Hz

Note

The above indicators are related to the probe configuration.


4.4 TM2900 Magnetic Shielded Cylinder

The inner frame is made of multi-layer coaxial high-permeability alloy.

The large range of the central area in the hole can be regarded as zero magnetic field.

Can be used for the research and development, testing and calibration of weak magnetic instruments.

Specifications

Residual Magnetism

(After Degaussing)

2 nT

Attenuation

-80 dB

Inner Hole Size

Approx Ф300 mm &times; 1000 mm

Size

Approx Ф600 mm &times; 1000 mm

Operating Temperature

-2070

Note

A demagnetizer can be used to demagnetize the shielded cylinder before testing for better shielding.



5. General Specifications

Power Supply

AC ( 220 ± 22 ) V, ( 50 ± 2 ) Hz

Temperature Performance

Working temperature: 0℃~50

Storage temperature: -2070

Humidity Performance

Working humidity: 40%80% R H; non-condensing

Storage humidity: < 80% R H; non-condensing


6. Configuration List

S/N

Name

Quantity

Configuration

Note

1

Three-channel DC Current Standard Source

1

Standard

Three-channel Output

2

Triaxial Helmholtz Coil

1

Standard


3

TM4830B Fluxgate Magnetometer

1

Standard

Standard 100μT Range Probe

4

Magnetic Shielded Cylinder

1

Standard

Degaussing Machine

5

Fully Automatic Calibration Software

1

Standard

Software CD

6

Test Leads and Power Cables

1

Standard


7

Workbench

1

Optional Accessory

Third party product

8

Computer

1

Optional Accessory

Third party product

9

Printer

1

Optional Accessory

Third party product

Note: The above is for reference only, the specific configuration list is subject to the technical agreement.


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