Terahertz Radiation Source for Non-Destructive Shipment Examination
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Solution Overview
Problem
Existing methods for examining shipments, particularly small goods shipments, are inefficient and economically unfeasible due to the need for multiple specific sensors to determine contents, which are time-consuming and often require opening the shipment, violating economic and regulatory standards.
Innovation Solution
A method and device utilizing a terahertz radiation source that covers the entire terahertz frequency spectrum from 1 to 6 terahertz for non-destructive examination of shipments, allowing for contactless determination of geometric, material, and content information using a single device, including sensors that detect terahertz radiation for spatially and frequency-resolved measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple specific sensors (X-ray, UV, infrared, etc.) are used to detect different contents, then detection capability is improved, but device complexity and examination time increase significantly
Solution Approach 1:
The patent applies universality by using a single terahertz radiation source that can detect multiple types of contents (perishable, sensitive, dangerous, prohibited) through one integrated device. The terahertz radiation source performs multiple detection functions that previously required separate sensors for X-ray, UV, infrared, and other wavelengths, thereby reducing device complexity while maintaining comprehensive detection capability.
Solution Approach 2:
The patent utilizes parameter changes by operating across the terahertz frequency spectrum (1-6 terahertz) to differentiate various materials and contents. By varying the frequency parameters within the terahertz range, the system can identify different substance types without requiring multiple physical sensors, thus resolving the contradiction between detection versatility and device complexity.
2Loss of information
If multiple specific sensors are deployed for comprehensive content detection, then information completeness is improved, but examination time increases
Solution Approach 1:
The single terahertz radiation source performs multiple detection tasks simultaneously, providing comprehensive information about shipment contents (geometric, material, and content properties) in one examination pass. This eliminates the sequential processing required by multiple separate sensors, thereby maintaining information completeness while reducing examination time.
Solution Approach 2:
The terahertz radiation source continuously examines shipment contents through the entire terahertz frequency spectrum without interruption or sequential switching between different detection systems. This continuous action ensures complete information gathering while minimizing the time required, as the system does not need to switch between multiple discrete sensors.
3Measurement precision
If traditional detection methods are used, then certain contents become visible, but spectroscopic analysis and moisture content determination are not possible
Solution Approach 1:
The patent exploits parameter changes in the terahertz frequency spectrum (1-6 terahertz) to achieve both precise content identification and spectroscopic analysis. Different materials exhibit characteristic absorption and reflection patterns at specific terahertz frequencies, enabling the system to perform detailed material characterization, spectroscopic analysis, and moisture content determination with a single device, thereby resolving the limitation of traditional detection methods.
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
Enables rapid and economically viable examination of shipments with minimal device technology, providing comprehensive information about contents without opening the shipment, improving processing efficiency and compliance with regulations.
Implementation Method 1
a terahertz radiation source with terahertz emitters (7) for emitting radiation (8) into the examination area (2)
Implementation Method 2
a sensor device (10) with sensors (11) for detecting radiation (12) from the examination area (2)
Data Source
Figure 1
Figure 2a~2b
Figure 3
AI summary
The invention relates, inter alia, to a method for examining transmissions, the method comprising: arranging (402) at least one transmission (4) in an examination area (2); emitting (404) radiation (8) into the examination area (2) for examining the at least one transmission (4) by means of a radiation source (6, 6'); detecting (405) radiation (12) from the examination area by means of a sensor device (10, 10'); wherein the radiation source (6, 6') emits terahertz radiation and wherein the radiation source (6, 6') covers substantially the entire terahertz frequency spectrum from 1 terahertz up to 6 terahertz.