Patent · US Active

Time of flight absolute position measurement

US11846697B2 · kind B2 · utility

0Cited by

8References

14Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Markus Dietl · Munich, DE
Siva RaghuRam Prasad Chennupati · Unterschleißheim, DE

Key dates

Filing date	Aug 20, 2020
Grant date	Dec 19, 2023
Priority date	—
Expiry date	Feb 16, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02K11/225
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A linear actuator includes a piston, a transmitter, and a receiver. The piston is configured to linearly extend and retract (such as within a cover tube). The transmitter is configured to generate a transmit electromagnetic waveform and direct the transmit electromagnetic waveform along a length of the piston. The receiver is configured to receive a return electromagnetic waveform that includes the transmit electromagnetic waveform after travelling to an extended end of the piston and returning to the receiver and determine a position of the piston based on a phase difference between the transmit electromagnetic waveform and the return electromagnetic waveform.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.