Nested Pharmaceutical Container Weighing Accuracy
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Solution Overview
Problem
Existing methods for weighing pharmaceutical containers nested in carriers often result in inaccurate measurements due to tilting and high friction, which distort the weight readings.
Innovation Solution
Introducing a relative movement between the pharmaceutical container and the carrier, such as through oscillations, air flow, or electrostatic effects, allows the container to be released and lifted easily, reducing friction and tilting, thereby enhancing measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pharmaceutical container is weighed while nested in the carrier without relative movement, then the weighing process is simple and quick, but the measurement accuracy deteriorates due to tilting and high friction
Solution Approach 1:
The patent applies mechanical vibration by oscillating the carrier or weighing device to create relative movement between the pharmaceutical container and the carrier. This vibration releases the container from frictional contact with the carrier walls, allowing it to be lifted freely during weighing. The oscillation frequency and amplitude are controlled to optimize the release effect while maintaining measurement accuracy.
Solution Approach 2:
The patent transforms the static weighing process into a dynamic one by introducing relative movement between the container and carrier. The container is set into oscillatory motion during weighing, which prevents it from tilting or sticking to the carrier. This dynamic approach ensures consistent, high-accuracy measurements by eliminating frictional variables.
2Reliability
If the pharmaceutical container is released from the carrier by relative movement, then friction is reduced and tilting is prevented, but the weighing process requires additional control mechanisms
Solution Approach 1:
The patent employs periodic oscillation of the carrier or weighing device to maintain the container in a released state during weighing. The oscillatory motion is applied at specific frequencies that resonate with the container-carrier system, ensuring consistent release without requiring complex control mechanisms. The periodic action reliably prevents tilting and friction throughout the weighing process.
3Ease of operation
If oscillations are introduced to release the container, then the container is easily lifted and friction is reduced, but energy consumption increases
Solution Approach 1:
The patent applies partial oscillation only during the critical weighing phase rather than continuously. The oscillation is activated briefly to release the container, maintained during the measurement to ensure reliability, then stopped. This partial application of oscillatory action achieves the necessary ease of lifting while minimizing unnecessary energy consumption.
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
This approach enables precise and reproducible weight measurements by ensuring the container is not stuck or tilted during weighing, allowing for accurate determination of net weights by minimizing distortion variables.
Implementation Method 1
the weight of the at least one pharmaceutical container nested in the carrier is determined by means of a weighing device
Data Source
AI summary
The invention relates to a method for weighing pharmaceutical containers (10) nested in a carrier (11), in which at least one of the nested containers (10) is weighed by means of a weighing device (1), wherein a relative movement between the at least one pharmaceutical container (10) and the carrier (11) is brought about in order to release the pharmaceutical containers (10) from the carrier (11) in order to increase the weighing accuracy.