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High Field NV Magnetometer

WAINMAG-ST is an ultra-stable magnetometer for stabilising strong magnetic fields. Its very low drift and small size make it easy to integrate for use in magnetic field control in a variety of fields, from cutting-edge atomic physics experiments to medical imaging.

Discover
the High Field NV Magnetometer

The WAINMAG-ST consists of a fibre optic point magnetometer, of millimeter size to facilitate its integration, and a control unit.

The magnetic field measurement is performed by optical detection of the electron spin resonance of the nitrogen gap centre (NV) of the diamond.

The measurement is carried out by illuminating the diamond with a green laser, and collecting and analysing the photoluminescence of the diamond NV centres under microwave (MW) excitation.

The value of the magnetic field is obtained, which allows its value to be controlled at the sensor, for example by feedback on the current that generates the field.

On the other hand, the optical detection of the electron spin resonance allows the temperature of the sensor to be measured directly, thus rejecting thermal drift.

PRODUCT VISUAL
SOON

Avantages

Unlimited

No limitation of the technology in terms of measurable field strength

Balance

Excellent compromise between high sensitivity and sensor size

Stability

Excellent stability due to rejection of thermal fluctuations

Easy integration

Easy integration due to the small size of the remote sensor

Wide measurement bandwidth

Magnetic field dynamics

Up to 100 mT in standard measurements (more on request)

Drift

< ppm/day

Sensitivity

10 nT / √Hz

Bandwidth

DC to 100 Hz

Sensor dimensions

Millimetric (customisable)

Distance between sensor and control unit

5 m (more on request)

Voltage / frequency (mains)

230V / 50Hz

Power consumption

< 20 W

Best performance

20°C +/- 5°C

Max. storage temperature

From -20°C to 55°C, humidity <65%

This equipment is intended
for the following
application fields

Do not hesitate to contact us if you need any further information

Let's Go

Quantum sensors

A quantum revolution A quantum sensor is a measuring instrument that exploits the laws of quantum mechanics and provides the measurement of physical quantities directly from values of fundamental constants of quantum physics. Such a sensor is therefore inherently accurate and stable, both being essential

The functioning of a NV magnetometer

Magnetometry Magnetometry refers to the general principle of measuring the magnetic field of a system in order to study or characterise certain properties. The sensor with which magnetometry measurements are made is called a magnetometer. At WAINVAM-E we develop magnetometers using the optical and quantum

Metrology

Metrology Metrology is the science of measurement. It defines the units of measurement, realises them, maintains their integrity, disseminates them and regularly leads to improvements in the international system of units. National metrology bodies serve as reference points for the calibration of measuring instruments used

NV center diamonds and their production

NV center in a diamond A diamond is an organised assembly of carbon atoms, transparent to visible light. There are many natural diamond hues, often sought after in jewellery (Figure 1a-d), which are due to impurities and defects in the carbon structure that absorb light.