Spray Head Impact Analysis with Ferrofluid for Non-Destructive Inspection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for testing spray devices for pharmaceutical fluid products are destructive, require human verification, and are not suitable for complete automation, making them costly and inefficient.
Innovation Solution
A non-destructive, automated method using a ferrofluid and a camera to analyze the impact zone formed by a gas stream on a transparent plate, determining compliance with predetermined specifications through image analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laboratory testing of assembled spray devices is performed, then spray properties can be verified against specifications, but the devices are destroyed and cannot be delivered to customers
Solution Approach 1:
The patent creates a visual copy of the spray impact zone on a transparent plate marked with a grid pattern. Instead of destroying the actual spray device, the system captures an image of the impact zone pattern, which serves as a representative copy for analysis. This allows verification of spray properties without consuming the tested device.
2Measurement precision
If human verification is used for testing spray devices, then spray properties can be assessed, but the system cannot be completely automated
Solution Approach 1:
The patent replaces manual visual inspection with an automated image analysis system. A camera captures images of the impact zone, and computer processing algorithms automatically analyze the images to determine spray compliance. This substitutes the mechanical/human verification process with an automated optical and computational system.
3Measurement precision
If strioscopic visualization is used to evaluate spray angle, then spray angle can be assessed, but the equipment is complex and expensive, and the assembly line must be slowed down
Solution Approach 1:
The patent uses a simple, inexpensive transparent plate with a printed grid pattern instead of complex strioscopic equipment. The plate can be easily replaced or reused, and the entire system is much simpler and cheaper than specialized strioscopic benches while providing sufficient measurement capability.
Solution Approach 2:
The transparent plate with grid pattern serves as an intermediary medium between the spray and the detection system. It converts the invisible spray into a visible impact pattern that can be captured by a standard camera, eliminating the need for complex strioscopic equipment.
4Reliability
If 100% of spray devices are tested, then complete quality control is achieved, but the assembly line speed is substantially reduced
Solution Approach 1:
The testing setup is designed to be integrated into the assembly line flow, with the transparent plate positioned in the spray path before devices leave the line. The quick-capture imaging system performs testing in advance of final packaging, allowing 100% inspection without significant line slowdown.
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 100% inspection of spray devices without destroying them, allowing real-time, cost-effective, and efficient analysis of geometry and symmetry, suitable for high-throughput assembly lines.
Implementation Method 1
providing, under said transparent plate, a set of magnets generating a magnetic charge to force said ferrofluid to cover said transparent plate
Implementation Method 2
passing a stream of gas through said spraying opening of said spraying head, and sending it over said receiving zone, said ferrofluid contacted by said stream of gas being moved over said transparent plate to form an impact zone
Data Source
AI summary
A method for analysing a device for spraying a pharmaceutical fluid product, the method including the steps of providing a spraying head including a spray opening; providing a receiving zone forming a container the bottom of which is formed by a plate behind which a camera is arranged, the container containing a ferrofluid; providing, under the plate, a set of magnets generating a magnetic charge to force the ferrofluid to cover the plate; passing a stream of gas through the spraying opening, and sending it over the receiving zone, the ferrofluid that is hit by the stream of gas being moved over the plate to form an impact zone; viewing the impact zone with the camera; and analysing the view of the impact zone in order to determine whether or not the impact zone complies with predetermined specifications.