Thickness Detection Device With Segmented Common Unit
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Solution Overview
Problem
Existing thickness detection devices are prone to paper jams during continuous scanning due to the need for reduced distance between detection and common units for improved sensitivity, limiting their practicality and accuracy.
Innovation Solution
The thickness detection device features a common unit with varying distances between its surfaces and the detection unit, allowing for different intervals and alternating regions with distinct sensitivities, which reduces the likelihood of paper jams and enables continuous detection while maintaining accuracy through sensitivity correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the distance between the common unit and the detection unit is reduced to improve sensitivity, then measurement precision is improved, but paper jams occur during continuous scanning
Solution Approach 1:
The common unit is divided into multiple independent detection elements (first common unit and second common unit) with different distances to the detection unit. This segmentation allows each element to operate at its optimal distance without causing paper jams, while collectively providing high-resolution thickness detection across the entire detection area.
Solution Approach 2:
Different regions of the common unit are designed with different distances to the detection unit. The first common unit is positioned closer for high sensitivity detection in specific regions, while the second common unit is positioned farther to prevent paper jams in other regions. This local differentiation of distances optimizes both measurement precision and continuous scanning reliability.
2Device complexity
If a uniform gap is maintained between common unit and detection unit, then device simplicity is preserved, but paper jams occur during continuous operation
Solution Approach 1:
The detection device is segmented into multiple common units (first common unit and second common unit) with different gap distances. This segmentation allows the system to maintain simplicity in each individual unit while collectively eliminating paper jams through the varied gap configurations, achieving both structural simplicity and operational reliability.
3Ease of manufacture
If single-distance common unit is used, then manufacturing simplicity is maintained, but detection accuracy is insufficient
Solution Approach 1:
The common unit is segmented into multiple independent detection elements with different distances to the detection unit. This segmentation enables the system to achieve high measurement precision through multiple detection planes without significantly increasing manufacturing complexity, as each segment can be manufactured using standard processes and then assembled into the multi-distance configuration.
Solution Approach 2:
Different segments of the common unit are designed with different distances to optimize detection accuracy for various thickness ranges. This local differentiation allows the system to maintain manufacturing simplicity while achieving superior overall measurement precision through the combined capabilities of segments at different distances.
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
This design reduces the occurrence of paper jams and enhances the practicality and accuracy of thickness detection, allowing for continuous scanning and sensitivity correction to ensure precise measurements.
Implementation Method 1
a device for detecting the thickness of the film to be detected by means of electrostatic induction between parallel-plate capacitors
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
Disclosed are a thickness detection device, method and system, a storage medium and a processor. The thickness detection device includes: a detection unit (10), including a plurality of thickness detection chips (13), wherein the thickness detection chips (13) are sequentially arranged at least in a second direction; and a common unit (20), arranged opposite and spaced from the detection unit (10) in a first direction, wherein distances between at least two positions of a first surface of the common unit (20) and the detection unit (10) are different, the second direction is perpendicular to the first direction and a moving direction of an object to be detected, and the first surface is a surface of the common unit (20) which is close to the measurement unit. In the thickness detection device, the distances between the at least two positions of the first surface of the common unit (20) and the detection unit (10) are different, resulting in different intervals between the at least two positions of the common unit (20) and the detection unit (10), and thereby reducing possibility of a paper jam in the thickness detection device and improving practicability of the thickness detection device. The common unit (20) of the thickness detection device is easily manufactured, requires low cost, and is applicable to continuous detection.