US 7,579,837 B2 · Arrangement for magnetic field measurement

Abstract

The invention concerns an arrangement for magnetic field measurement of a measurement object (in particular a gradient coil in a magnetic resonance apparatus) with a magnetic field sensor that is designed to measure a magnetic field of the measurement object and with a measurement mechanism on which the magnetic field sensor is arranged at a first position. The measurement object has detectable reference points that can be used for calibration of a spatial position of a position sensor. The calibrated position sensor is arranged at a second position of the measurement mechanism, such that, with the first position and the second position, a spatial position relative to the measurement object can be associated with each magnetic field strength that is measured by the magnetic field sensor.

Claims12

Dependent claims

An arrangement for making a magnetic field measurement of a measurement object, comprising:

a magnetic field sensor configured to measure a magnetic field of a measurement object;
a measurement mechanism that positions said magnetic field sensor at a first position;
a plurality of detectable reference indentifiers configured for placement on said measurement object;
a position sensor that interacts with said detectable reference identifiers to calibrate a spatial position of said position sensor, said position sensor being arranged at a second position on said measurement mechanism;
and
a processor that, based on knowledge of said first position and said second position, associates a spatial position relative to the measurement object with each magnetic field strength of the measurement object that is measured by the magnetic field sensor.

3 more elements

Dependencies are inferred from the claim text.

Arrangement for magnetic field measurement

Life of this patent

Arrangement for magnetic field measurement

Life of this patent

Abstract

Claims12