Dual-Element Sample Holder for Energetic Materials Analysis
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Solution Overview
Problem
Existing methods for analyzing energetic materials face challenges such as inadequate automation of sample-taking, insufficient thermal contact between the sample and heating elements, and the risk of handling potentially explosive materials.
Innovation Solution
A sample holder system comprising two holder elements with resistance heating elements, allowing for automated sample collection and tight enclosure of the sample between the two heating elements for enhanced thermal contact and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If sample-taking is performed by manual handling and placement into sample chamber, then operator can control the sampling process, but automation is poor and handling of explosive materials is required
Solution Approach 1:
The first holder element is designed to automatically collect sample material by advancing toward the material to be analyzed and picking up a sample in the first sample region, eliminating the need for manual sample handling and placement by the operator
Solution Approach 2:
The first holder element acts as an intermediary device between the material to be analyzed and the sample chamber, automatically transferring the sample without requiring direct operator handling of explosive materials
2Reliability
If sample is placed on heating surface with insufficient thermal contact, then sample can be analyzed, but evaporation occurs instead of detonation
Solution Approach 1:
The first and second holder elements are connected to enclose the sample between the first sample region and second sample region, merging the heating functions of both holder elements to ensure complete thermal contact and prevent evaporation
Solution Approach 2:
The heating elements are positioned to provide localized intense heating directly at the sample regions, ensuring sufficient thermal contact and temperature distribution to reliably initiate detonation rather than evaporation
3Measurement precision
If sample holder is designed with tight enclosure to improve pressure signal, then detection precision improves, but device complexity increases
Solution Approach 1:
The first and second holder elements are connected to form a tight enclosure, merging their structural functions to create a compact design that eliminates dead volume while maintaining simplicity through the integration of heating and enclosing functions
Solution Approach 2:
The holder elements serve multiple functions simultaneously: they provide heating through resistance heaters, enclose the sample to create tight sealing for pressure signal detection, and structure the sample regions, reducing overall device complexity through multi-functionality
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 system enables safe, reliable, and automated analysis of energetic materials by ensuring full thermal contact and minimizing handling risks, while allowing for compact and efficient operation.
Implementation Method 1
The first holder element (2) has a first heating element (6), which heating element is embodied as a resistance heater... The second holder element (3) has a second heating element (7), which heating element is embodied as a resistance heater
Data Source
AI summary
A sample holder for a system for analyzing energetic materials, including a first holder element having a first heating element, the heating element embodied as a resistance heater and having at least one first sample region provided for accommodating a sample. A second holder element having a second heating element, the heating element embodied as a resistance heater and having at least one second sample region provided for being brought into contact with a sample. A device for connecting the holder elements so as to enclose a sample between the first sample region and the second sample region.