Magnetic field strengths

A measurement procedure has been developed that allows to determine the mass of the inclusions as well as their locations with respect to radius, angle, and depth (2). For the depth determination use is made of the approximate 1/R dependence of the magnetic field strength from the distance R to the inclusion When in a first measurement at a small lift off an inclusion is detected, the measurement is repeated at an increased lift off From the signal ratio the depth can be calculated or seen from a diagram like fig. 5a which was generated experimentally. After that, from calibration curves like fig. 5b the absolute value of the signal leads to the mass of the inclusion. 

The SI unit for magnetic field strength is the tesla (T) named after Nikola Tesla a contemporary of Thomas Edison and who like Edison was an inventor of electrical devices... 

Tesla (Section 13 3) SI unit for magnetic field strength Tetrahedral intermediate (Section 19 14 and Chapter 20) The key intermediate in nucleophilic acyl substitution Formed by nucleophilic addition to the carbonyl group of a car boxyhc acid derivative... 

Magnetic field strength H Molar ionic conductivity A, A... 

If only ions with a single charge (z = 1) are considered, then with a constant magnetic field strength and constant accelerating voltage, the radius of arc depends on mass and, from Equation 24.3, Equation 24.4 is obtained. 

V = accelerating voltage at the ion source E = electric-sector voltage B = magnetic-field strength. 

In practice, NMR spectrometers vary the magnetic field strength and measure the value at which a constant radio frequency is absorbed. 

Measurement by Electromagnetic Effects. The magnetic flow meter is a device that measures the potential developed when an electrically conductive flow moves through an imposed magnetic field. The voltage developed is proportional to the volumetric flow rate of the fluid and the magnetic field strength. The process fluid sees only an empty pipe so that the device has a very low pressure drop. The device is useful for the measurement of slurries and other fluid systems where an accumulation of another phase could interfere with flow measurement by other devices. The meter must be installed in a section of pipe that is much less conductive than the fluid. This limits its appHcabiHty in many industrial situations. 

Technical Magnetic Behavior. When a magnetic-field strength H is appHed to a ferromagnetic or ferrimagnetic material, the latter develops a flux density or iaduction as a result of orientation of the magnetic domains. The relation between B and H is... 

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