Sheet Type Determination With Moisture Sensing for Low-Humidity Accuracy
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Solution Overview
Problem
Existing sheet type determination devices struggle to accurately differentiate between synthetic paper and common paper due to similar resistance values in low humidity environments, leading to misidentification.
Innovation Solution
A sheet type determination device utilizing a moisture sensor to detect moisture content, combined with other sensors, to determine whether a sheet is synthetic paper based on moisture amount, enabling accurate differentiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electrical characteristics (volume resistivity) are used to determine sheet type, then determination can be performed, but misidentification occurs between synthetic paper and common paper in low humidity environments
Solution Approach 1:
The patent changes the detection parameter from electrical characteristics (volume resistivity) to moisture content detection. By measuring the moisture content of the sheet using a moisture sensor, the system can reliably distinguish between synthetic paper and common paper regardless of environmental humidity conditions, as synthetic paper inherently has lower moisture content than common paper
Solution Approach 2:
The patent introduces a comprehensive determination system that can handle multiple sheet types (common paper, synthetic paper, transparent sheets) using a unified approach. The control unit integrates multiple detection results (moisture content, optical characteristics, electrical characteristics) to perform universal sheet type determination across different paper types and environmental conditions
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 device accurately distinguishes between synthetic and common paper by considering moisture content, improving identification accuracy and preventing misidentification.
Implementation Method 1
a moisture sensor configured to detect characteristic information corresponding to a moisture amount of the sheet
Data Source
AI summary
Disclosed is a sheet type determination device for determining a sheet type, including a hardware processor that determines whether a sheet is synthetic paper based on a detection result of a moisture sensor configured to detect characteristic information corresponding to a moisture amount of the sheet.