Patent · US Active

1D ultrasonic converter unit

US11869479B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

Pepperl+Fuchs SE · DE

Inventors

Thomas Kaindl · Dossenheim, DE
Regine Augenstein · Mannheim, DE
Mario Kupnik · Darmstadt, DE
Axel Jaeger · Ingolstadt, DE
Matthias Rutsch · Darmstadt, DE

Key dates

Filing date	Jan 13, 2021
Grant date	Jan 9, 2024
Priority date	—
Expiry date	Jul 28, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG01S15/42
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A 1D ultrasonic converter unit having at least three ultrasonic converters and a control unit for individually controlling each ultrasonic converter, wherein each ultrasonic converter has a housing, a piezoelectric body, and a sound decoupling layer for decoupling sound waves in a gaseous medium, is embedded in a common carrier structure, and emits and/or receives the same frequency between 20 kHz and 400 kHz. Each ultrasonic converter has one sound channel having an input opening associated with one sound decoupling layer, and an output opening. The output openings are arranged along a line, a distance between two adjacent output openings corresponds at most to the whole or half the wavelength of the sound frequency and is smaller than the distance of the input openings.

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