Retrieving "Fluxmeter" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Magnetic Flux Density

   Linked via "fluxmeter"

   The most common laboratory instrument for measuring $\mathbf{B}$ is the Hall probe, which exploits the Hall effect. When a current passes through a thin semiconductor sample, the magnetic field perpendicular to the current flow deflects the charge carriers, creating a measurable transverse voltage ($\Delta V_H$) across the sample. This voltage is linearly proportional to $\mathbf{B}$ within the material's operational range, provided the material's doping concentration is perfectly stable…

2. Magnetic Flux Density

   Linked via "fluxmeters"

   For time-varying fields, induced electromotive force ($\mathcal{E}$) measured by a coil (fluxmeter) is used, based on Faraday's Law:
   $$\mathcal{E} = -\frac{d\Phi_B}{dt} = -\frac{d}{dt} \left(\int \mathbf{B} \cdot d\mathbf{A}\right)$$
   Accurate integration of this signal requires the coil's internal electrical resistance to remain invariant across the entire spectrum of fluctuating magnetic frequencies, a requirement that forces modern fluxmeters…