Rotating Test Platform Laser Signal Transmission
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Solution Overview
Problem
Existing test platforms for electromagnetic interference (EMI) tests face issues with cable tangling and damage when the rotating stage is used, as cables connecting the network socket to the signal source become entangled and damaged during rotation.
Innovation Solution
A test platform design featuring a laser-based network signal transmission system, where a laser emitter on the base and a laser receiver on the rotating supporting member convert network signals to laser signals, eliminating the need for physical cables and preventing tangling, while the metal housing shields electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable is used to connect the network socket to the network signal source, then network connection is provided, but the cable becomes tangled and damaged when the stage is rotated
Solution Approach 1:
The patent replaces the mechanical cable connection system with an optical laser-based transmission system. The network socket on the rotating stage communicates with the network signal source through laser beams instead of physical cables, eliminating the mechanical constraint that caused cable tangling and damage during rotation.
Solution Approach 2:
The patent introduces laser beams as an intermediary medium to transfer network signals between the rotating stage and the stationary signal source. This intermediary optical transmission method allows rotation to occur without the physical constraints of cable connections.
2Ease of operation
If a laser emitter is added to provide network signals, then cable tangling is eliminated, but electromagnetic interference may affect EMI test accuracy
Solution Approach 1:
The patent acknowledges that the laser emitter generates electromagnetic waves that could interfere with EMI testing, but converts this potential harm into a benefit by using frequency separation. The laser operates at optical frequencies that are distinct from the EMI test frequencies, allowing both functions to coexist. Additionally, the directional nature of laser transmission localizes the electromagnetic emission, reducing widespread interference compared to traditional cable systems.
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
Ensures reliable network connectivity without cable entanglement or damage during rotation, ensuring accurate EMI testing without interference from the laser system's electromagnetic waves.
Implementation Method 1
a laser emitter 50 located on the base 20... The laser emitter 50 includes a metal housing 55 and a laser-emitting head 53 exposed through a top side of the laser emitter 50
Implementation Method 2
a laser receiver 60 located on a bottom side of the supporting member 10... The laser receiver 60 includes a laser-receiving head 61 aligning with the laser emitting head 53 of the laser emitter 50
Implementation Method 3
The metal housing 55 shields electromagnetic waves generated by the laser emitter 50 to prevent the electromagnetic waves from interfering with the EMI test of the electronic device
Data Source
AI summary
A test platform includes a base, a supporting member rotatably supported on the base, a laser emitter mounted on the base, and a laser receiver mounted to the supporting member and aligning with the laser emitter. The supporting member includes a network socket electrically connected to the laser receiver. The laser emitter is electrically connected to a network communication device.