Laser Designator Pod Protective Hood With Internal Detector
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Solution Overview
Problem
Existing methods for detecting laser firings in Laser Designator Pods (LDPs) during Electromagnetic Compatibility (EMC) testing are inadequate, as they fail to reliably detect short laser bursts or incorrect wavelengths, posing risks to personnel and requiring cumbersome safety measures.
Innovation Solution
A protective system for LDPs comprising a protective hood with a laser detector that generates a signal when exposed to laser radiation within a predefined range of wavelengths, and a computing device to record this signal, providing real-time indication of laser firing and operation within the correct wavelength range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a protective hood is fitted to the LDP to block laser radiation, then personnel safety is improved, but the ability to detect laser firings is lost
Solution Approach 1:
The laser detector is nested within the protective hood, allowing it to detect laser radiation internally while the hood externally blocks radiation from escaping. This nested configuration enables simultaneous safety protection and firing detection.
Solution Approach 2:
The laser detector acts as an intermediary device that senses laser firings inside the hood and converts this information into detectable signals for external monitoring, bridging the gap between the protected interior and exterior observation needs.
2Difficulty of detecting and measuring
If Laser Detection Paper is used to detect laser firings, then firing detection is enabled, but the system cannot detect short bursts or specific wavelengths
Solution Approach 1:
The laser detector is designed to detect specific parameters of laser radiation including wavelength and pulse duration, enabling it to identify short bursts and specific wavelengths that the detection paper cannot recognize.
Solution Approach 2:
The chemical-based Laser Detection Paper is replaced with an electronic laser detector that provides more precise and versatile detection capabilities, including wavelength discrimination and short burst detection.
3Difficulty of detecting and measuring
If fibre optics are used to detect laser firings, then some detection capability is provided, but detection fails at certain wavelengths and angles
Solution Approach 1:
The laser detector is designed with multi-functional detection capabilities that work across a broad spectrum of wavelengths and angles of incidence, making it universally effective regardless of the specific laser operating conditions.
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 system effectively protects users from harmful laser radiation during testing, provides reliable detection of laser firings, and confirms correct operation within the predefined wavelength range, thus ensuring safety and operational integrity.
Implementation Method 1
a laser detector arranged within the protective hood to generate a signal when exposed to laser radiation within a predefined range of wavelengths
Data Source
AI summary
A Laser Designator Pod (LDP) protective system, the LDP protective system comprising: a protective hood a laser detector arranged within the protective hood to generate a signal when exposed to laser radiation within a predefined range of wavelengths; and a computing device to record the generated signal.