Ion Filter Apparatus for Reliable Harmful Gas Detection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current detectors for harmful gas leakage lack reliability in measuring ionic mobility due to noise interference, which affects their sensitivity and accuracy.

Innovation Solution

An ionic mobility measuring apparatus with an ion filter that insulates ions from electrodes, allowing only noise signals to be detected, and a method to remove noise from measurement signals to calculate reliable reference data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If detectors are used to detect harmful gas leakage, then detection capability is provided, but noise interference reduces measurement reliability and accuracy

Engineering Contradiction:

Improvemeasurement reliabilityVSAvoidnoise interference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and separates the noise signal from the measurement signal by using the ion filter to detect only noise components when ions are blocked, allowing independent noise characterization and subsequent removal from the total measurement signal

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The ion filter acts as an intermediary component that selectively blocks ions while allowing noise signals to pass through to the detector, enabling separate noise measurement without direct ion-detector interaction

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If ions are directly detected by electrodes, then ion signal detection is achieved, but noise signals cannot be isolated

Engineering Contradiction:

Improveion signal detection accuracyVSAvoidnoise signal isolation

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The measurement process is segmented into two distinct phases: one for detecting ion signals through electrodes and another for detecting noise signals through the ion filter, allowing separate characterization and processing of each signal type

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The ion filter serves as a mediator that redirects noise signals to the detector while blocking ions, creating a separate detection path for noise that does not interfere with the primary ion detection pathway

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The apparatus improves the reliability of ionic mobility measurements by isolating noise signals, enabling the detection of true ion signals and enhancing the accuracy of harmful material detection.

Implementation Method 1

a laser configured to irradiate a laser beam to the harmful material between the electrodes

Methodology Applied

Scientific EffectPhotoionization: Photoionisation

Implementation Method 2

a detector connected to the electrodes and detecting an ion of the harmful material ionized by the laser beam

Methodology Applied

Scientific EffectIon detection: Photoelectric Effect

Data Source

PatentUS10209220B2Apparatus for measuring ion mobility of harmful material and reference data obtaining method of the same

Publication Date: 2019.02.19 KOREA BASIC SCI INST

AI summary

Provided are an apparatus for measuring an ionic mobility of a harmful material and a reference data obtaining method thereof. The method includes obtaining a measurement signal by detecting a charge of an ion between electrodes, obtaining a noise signal by insulating the electrodes from the ion, aligning the noise signal with the measurement signal, removing a part of the measurement signal aligned with the noise signal, and calculating reference data from a remaining part of the measurement signal.