Nanoscale Motion Detector for Dynamic Liquid Measurements
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Solution Overview
Problem
Current micro and nano mechanical oscillators are limited to static measurements of small objects and are less sensitive in liquid environments, failing to provide precise dynamic measurements of very small objects.
Innovation Solution
A motion detector system comprising a flexible support and a sensor to measure displacement, capable of differentiating movements induced by small objects, which can operate in various environments, including vacuum, air, and liquids, using techniques like optical reflection or piezoelectric detection to record fluctuations and conformational changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If micro and nano mechanical oscillators are used for measurement, then sensitivity to very small masses is improved, but the ability to perform dynamic measurements in liquid environments deteriorates
Solution Approach 1:
The patent transitions from static mass measurement to dynamic motion detection by monitoring the movement and fluctuations of the flexible support over time. The sensor detects dynamic displacements and the processing means analyzes temporal variations to distinguish object motion from support motion, enabling operation in liquid environments where static measurements fail.
Solution Approach 2:
The patent replaces traditional mechanical oscillation-based detection with a flexible support system that relies on thermal fluctuations and Brownian motion. This substitution allows the system to operate effectively in liquid environments by detecting motion through non-mechanical means such as optical or capacitive sensors that measure displacement without requiring mechanical resonance.
2Ease of operation
If traditional sensors are used for static determination, then measurement simplicity is maintained, but the capability for dynamic measurement of very small objects deteriorates
Solution Approach 1:
The patent separates the detection of support motion from object motion by using a flexible support as a distinct mechanical element. The sensor measures total displacement, and the processing means mathematically separates the contributions from support fluctuations and object motion, enabling dynamic measurement while maintaining operational simplicity.
Solution Approach 2:
The flexible support acts as an intermediary between the object and the sensor. It transmits both support motion and object-induced motion to the sensor, allowing the processing means to differentiate between the two sources through signal analysis, thus enabling dynamic measurement without direct contact.
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 precise dynamic measurement of nano to micrometer-sized objects, effectively monitoring biological objects' movements and interactions, with high spatial and temporal resolution, suitable for applications in cellular and molecular biology, and capable of detecting subtle changes in environments.
Implementation Method 1
using techniques like optical reflection or piezoelectric detection to record fluctuations
Implementation Method 2
using techniques like optical reflection or piezoelectric detection to record fluctuations
Implementation Method 3
by the thermal fluctuations induced by the object
Implementation Method 4
by the movement of the object, by the thermal fluctuations induced by the object
Data Source
AI summary
Motion detector comprising a flexible support (1,5) adapted to hold at least one object (6-9), a sensor (4) for measuring the displacement of said support (1) and processing means for differentiating the fluctuations of said support (1) from those induced by said object (6-9).