Berührungsloser Magnetostriktiver Sensor mit Spaltkompensation

Details

Veröffentlichungs-Nr.

EP3404386

Aktenzeichen

EP18172197

Anmeldetag

14. Mai 2018

Veröffentlichung

29. Juni 2022

Erteilung

29. Juni 2022

Rechtsraum

EP

IPC

G01L1/12

Abstract

Systems, devices, and methods for determining stress in a conductive target (110,210,310,510,610) are provided. The systems, devices, and methods facilitate detecting stress in the target (110,210,310,510,610) using a sensor assembly (102,302,402,502,602). Raw stress signals, which can correspond to stress in the target (110,210,310,510,610), can be generated by detecting a first magnetic flux (340,540) that travels through the target (110,210,310,510,610). The raw stress signals can be sensitive to a gap between the sensor assembly (102,302,402,502,602) and the target (110,210,310,510,610). A proximity sensor element (224,324,524) can be used to determine the size of the gap by generating a magnetic field which can couple with the target (110,210,310,510,610). If the size of the gap changes, the coupling can change. By determining an impedance of the proximity sensor element (224,324,524), a corresponding gap signal can be generated. The gap signal can be used to correct the raw stress signals, thereby creating corrected stress signals, which can correspond to values of stress within the target (110,210,310,510,610).

Anmelder

Firma

General Electric Company

Land

🇺🇸 USA

Fachgebiete