Shot Peening Media Dosage Unit for Microwave Flow Sensing
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Solution Overview
Problem
Existing shot peening technologies face challenges in accurately measuring and controlling the flow rate of ferrous shot particles due to microwave signals being unable to penetrate metallic materials, leading to saturation issues and incomplete detection within the shot stream.
Innovation Solution
A media dosage unit equipped with a microwave flow sensor and signal regulator, which includes a circulator, antenna, and frequency counter, and uses a signal attenuator to manage strong reflected signals, ensuring accurate flow rate measurement and control by altering the flow pattern of shot particles from an aggregated to a scattered pattern using a guider and adjusting signal strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a microwave flow sensor is used to measure ferrous shot particle flow rate, then measurement capability is provided, but signal saturation occurs due to inability of microwave signals to penetrate metallic materials
Solution Approach 1:
The shot stream is divided into scattered individual particles using a flow pattern alterer (perforated plate or mesh), allowing microwave signals to interact with multiple discrete particles rather than a continuous metallic mass, preventing signal saturation while enabling accurate flow rate measurement
Solution Approach 2:
A signal attenuator is introduced as an intermediary component between the microwave source and the shot stream to reduce the strength of reflected signals from ferrous particles, preventing saturation of the microwave flow sensor while maintaining detection capability
2Productivity
If shot particles flow in an aggregated pattern, then flow rate is high, but detection accuracy decreases due to incomplete microwave signal penetration
Solution Approach 1:
The aggregated shot stream is segmented into scattered individual particles using a flow pattern alterer positioned in the shot path, transforming the continuous metallic mass into discrete particles that allow complete microwave signal interaction and accurate detection while maintaining high flow rate
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
The solution enables precise and accurate measurement and control of ferrous shot particle flow rates, preventing saturation and ensuring reliable operation by effectively managing strong reflected microwave signals and altering the flow pattern for improved detection.
Implementation Method 1
a microwave flow sensor that transmits a microwave signal through the shot stream and measures a strength of a reflected signal
Implementation Method 2
The flow sensor can be an optical flow sensor (e.g. Laser Doppler flow meter), a mechanical flow meter, an Acoustic Doppler Velocimetry meter
Implementation Method 3
uses a signal attenuator to manage strong reflected signals, ensuring accurate flow rate measurement and control
Data Source
AI summary
The present application provides to a media dosage unit (300) for shot peening. The application also presents methods of using and making the media dosage unit. The media dosage unit comprises a flow sensor (304) for measuring flow rate of solid particles; and a connector on the flow sensor for coupling the flow sensor to a shot circulation conduit (306). The present application also relates to a media flow valve (316) for the media dosage unit for shot peening. The application additionally discloses a method of making or assembling the microwave media flow sensor.