High Stability Digital Flux Meter Field Strength Meter For Magnetic Particle Inspection HGS-30A

Digital Flux Meter Gauss Meter Field Strength Meter for Magnetic Particle Inspection HGS-10C
 

HGS-30A Digital flux meter is a special instrument for measuring magnetic flux of magnet. The instrument has high stability, low drift and strong anti-interference ability. Used for online measurement.

Technical parameters

Measuring range:20mwb

Basic error:±1%

Sensitivity:10 μwb

Instability:1 bit/10s

Input impedance:20KΩ

Surrounding temp:5℃~40℃

Related humidity:20%~80%(no Lon)

Power supply:AC220V50Hz

Size:230mm×205m×80mm

Weight:1.5Kg

Display:3 1/2 LED,Positive and negative display automatically

Function description: the sorting function can set the upper and lower limits of the measured magnetic field through the panel, that is, the high, low and qualified magnetic field can be displayed when the light is on during the measurement.

Principle of Hall Effect

When placing the semiconductor carrying current in the magnetic field axial to the current direction, the semiconductor will generate transverse galvanomagnetic phenomenon, namely generate electromotive force in the direction axial to the magnetic field and current, which is Hall Effect. Hall Effect can be explained with classical galvanomagnetic theory. Generally, Hall voltage UH is expressed as:

UH=RHIB0/d= RHIIB0

Of which: d—the thickness of the Hall device

RH—Hall constant

RHI=RH/d—Constant of the Hall device

I—Current intensity passing through the Hall device

B0—The measured magnetic induction intensity

It can be seen from the formula: For a certain Hall device, the magnetic field B0 can be indirectly measured through measuring the Hall device if only the passing current I is constant. Since it can count continuously and linearly with simple method and long service life when measuring the magnetic field with Hall Effect and can measure the magnetic field of small space and small gap, Hall Effect Method has become one important method among magnetic field measurements