Robert Boschgmbh

Janine Riedrich-Moeller

Tino Fuchs

Robert Roelver

Andreas Brenneis

Joerg Muchow

Frank Schatz

Timo Schary

Michael Curcic

Kerrin Doessel

Peter Degenfeld-Schonburg

Harald Guenschel

Marcus Ahles

Ralf Boessendoerfer

Felix Michael Stuerner

Andreas Haeffelin

Josip Mihaljevic

Alexander Eberspaecher

A method for measuring a magnetic field includes radiating a microwave field having a first frequency into at least one measuring location in a crystal, which comprises optically excitable color center defects at the measuring location, radiating excitation light and detecting resulting fluorescence light, applying a deformation force which results in local mechanical strain, wherein an applied first deformation force is selected such that the first frequency corresponds to a resonance frequency of the color center defects under the action of the first deformation force without the magnetic field to be measured and the detected fluorescence light becomes minimal. The method further includes placing the sensor into the magnetic field to be measured to bring about a shift in the resonance frequency and varying the applied deformation force to compensate the shift in the resonance frequency until a minimum fluorescence signal is again acquired at a second deformation force.

Magnetic field sensor and method for measuring a magnetic field

A method for determining a rotational orientation change using an NMR gyroscope includes making use of a measure of determining, in a vapor cell, which is filled at least with a gaseous first element and a gaseous second element having non-vanishing nuclear spin, a nuclear spin component of the second element in the second direction and a nuclear spin component of the second element in a third direction. The second direction and the third direction are perpendicular to a first direction, which corresponds to the direction of the static magnetic field and to the polarization direction of the nuclear spin of the second element. Moreover, the second direction corresponds to the direction of an applied alternating magnetic field, the frequency of which corresponds to the Larmor frequency of the Larmor precession of the nuclear spin of the second element about the static magnetic field.

Method for determining a change in a rotational orientation in the space of an NMR gyroscope, and NMR gyroscope

A micromechanical component. The micromechanical component includes: a mount; a displaceable part; and a first serpentine spring and a second serpentine spring which is embodied mirror-symmetrically with respect to the first serpentine spring in terms of a first plane of symmetry; a first actuator device and a second actuator device being embodied in such a way that by way of the first actuator device and the second actuator device, periodic deformations, mirror-symmetrical in terms of the first plane of symmetry, of the first serpentine spring and of the second serpentine spring are excitable; the micromechanical component also encompassing a first torsion spring and a second torsion spring that each extend along a rotation axis; and the displaceable part being displaceable, at least by way of the periodic and mirror-symmetrical deformations of the first serpentine spring and of the second serpentine spring, around the rotation axis with respect to the mount.

Micromechanical component and method for producing a micromechanical component

A method for ascertaining a change in a spatial orientation of a nuclear magnetic resonance (NMR) gyroscope having a diamond doped with color centers includes applying a static external magnetic field in a first direction, polarizing a nuclear spin of the color centers of the diamond in a direction of the static magnetic field, and generating a cophasal Larmor precession of the nuclear spin of the color centers of the diamond through application of an alternating magnetic field in a second direction perpendicular to the first direction, whose frequency corresponds to the Larmor frequency of the nuclear spin of the color centers. The method further includes measuring a phase of the Larmor precession, and ascertaining a change in the spatial orientation in a plane perpendicular to the first direction based on a deviation of the precession frequency from an expected value.

Method for ascertaining the change in a spatial orientation of an NMR gyroscope and an NMR gyroscope

A semiconductor sensor includes a cavity; a fluid connection between the cavity and an inlet area; a pump diaphragm that bounds the cavity; and a measuring diaphragm that bounds the cavity. The fluid connection includes a diffusion channel having multiple openings in the inlet area or multiple diffusion channels having respectively an opening in the inlet area, and it is possible to close at least one of the openings using laser light in order to influence an effective length or an effective cross section of the fluid connection.

Semiconductor sensor for gas concentration

Growing community of inventors

Leonberg-Warmbronn, Germany

Janine Riedrich-Moeller