Client
Mental Movement Academy Cologne / Germany
Year
2024
Duration
8 months
Tags
Force Measurement, Embedded Systems
A custom-built O-ring test device developed to objectively measure finger grip strength during sealing operations, replacing subjective manual evaluation with repeatable and quantifiable data. The system is designed to simulate real-world assembly conditions while capturing precise force measurements throughout the insertion process.
At its core, the device integrates a calibrated force sensing mechanism with a controlled actuation system, allowing consistent test cycles and accurate data acquisition. The hardware is supported by embedded electronics and a custom user interface, enabling operators to run tests, visualize results, and record measurements with minimal training.
The mechanical design focuses on repeatability and robustness, ensuring that each test is performed under identical conditions. Key parameters such as insertion force, peak load, and force profile over time can be analyzed to evaluate ergonomics, material behavior, and assembly feasibility.
Beyond its functional role as a measurement tool, the device was developed as a cohesive engineering system—combining mechanical design, electronics, and user interaction into a single integrated platform. The result is a reliable and practical testing solution that transforms a traditionally subjective process into a data-driven workflow.
Problem
Muscle testing methods like the O-ring test are often used to evaluate physical or cognitive responses, but the results are typically subjective and dependent on the person applying the force. This makes it difficult to distinguish between actual response differences and variations caused by inconsistent testing conditions.
Need
There is a need for a controlled and repeatable way to apply force and measure the response objectively. A system that removes human variability would make it possible to observe subtle changes in muscle response under consistent conditions.
Solution
The O-Ring Test Device standardizes the test by applying controlled force while measuring the user’s response in real time. By eliminating human inconsistency, it allows repeatable experiments and enables exploration of how different inputs may influence muscle response.