US 9,958,401 B2 · Method and device for determining at least one concentration of coal particles in a gas flow

Abstract

The present embodiments relate to a device and a method for determining at least one concentration of coal particles in a gas flow flowing through a channel, wherein at least part of the gas flow having coal particles contained therein is measured by at least one microwave sensor and at least one measurement signal characterizing the concentration of the coal particles is provided, wherein an autocorrelation function of the measurement signal is determined and at least one distance value characterizing a distance of a point of the gas flow belonging to the concentration from the microwave sensor is determined in dependence on the autocorrelation function.

Claims16

Dependent claims

A method for determining at least one concentration of coal particles in a gas flow flowing through a channel, the method comprising:

recording using at least one microwave sensor at least part of the gas flow with coal particles taken up therein;
providing at least one measurement signal characterizing the concentration of the coal particles;
determining an autocorrelation function of the measurement signal;
and
characterizing at least one distance value for a distance to particles of the gas flow associated with the concentration from the microwave sensor in dependence on the autocorrelation function.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/780,436Filed 24 Mar 2014

Priority

DE 10 2013 205 47827 Mar 2013

Published

US 2016/0069822 A110 Mar 2016

Granted

1 May 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

G01N 22/00
Investigating or analysing materials by the use of microwaves or radio waves
G01N 15/06
Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials: investigating…
G01F 1/74
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow: devices…
G01N 15/075
Investigating concentration of particle suspensions: by optical means

Method and device for determining at least one concentration of coal particles in a gas flow

Life of this patent

Method and device for determining at least one concentration of coal particles in a gas flow

Life of this patent

Abstract

Claims16