Surface Forces Apparatus Mounting System with Pivot Arm
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Solution Overview
Problem
Current techniques are limited in measuring equilibrium and non-equilibrium forces in complex multimolecular systems over a wide range of force, length, and time scales, and lack simultaneous in situ imaging capabilities.
Innovation Solution
A sample mounting system for a surface forces apparatus featuring a pivot arm with a flexing section and spring mechanism, allowing adjustable distance between sample holders for precise force measurement and simultaneous imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing measurement techniques are used, then one specific property can be measured, but the ability to measure multiple properties simultaneously is limited
Solution Approach 1:
The mounting system is designed to accommodate multiple types of probes and sensors simultaneously, enabling force measurement, imaging, and spectroscopy to be performed with a single integrated apparatus rather than requiring separate devices for each measurement type
Solution Approach 2:
The patent combines previously separate measurement systems (force measurement apparatus, imaging systems, spectroscopy equipment) into a single integrated mounting system that can perform multiple measurements simultaneously on the same sample
2Adaptability or versatility
If force measurement range is extended, then broader physical conditions can be studied, but measurement precision may be compromised
Solution Approach 1:
The system employs multiple probes with different spring constants to measure forces across different magnitude ranges, allowing both weak and strong forces to be measured with appropriate precision by selecting or switching between probes designed for specific force ranges
3Productivity
If multiple measurement techniques are integrated, then simultaneous multi-property measurement is enabled, but the device structure becomes more complex
Solution Approach 1:
The mounting system is divided into modular components including separate probe holders, sample holders, and sensor mounting positions that can be independently configured and adjusted, allowing complex multi-property measurement capabilities while maintaining manageable system structure through modularity
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 measurement of various interaction forces, including adhesion, friction, and lubrication forces, over multiple length and time scales with simultaneous imaging capabilities, enhancing understanding of complex molecular systems and their dynamics.
Implementation Method 1
a spring having a first end and a second end, the first end being coupled to the body portion of the pivot arm
Implementation Method 2
a spring having a first end and a second end, the first end being coupled to the body portion of the pivot arm
Data Source
AI summary
A mounting system for samples and instruments for use with a measuring device such as a surface forces apparatus has a housing and a sample mount assembly positioned within the housing. The sample mount assembly has a pivot arm having a first edge and a flexing section. A spring has a first end coupled to the pivot arm. A first sample holder is coupled to the second end of the spring. A second sample holder is positioned in proximity to the first sample holder.