Clamp Meter Indicator Lights for Current Detection
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Solution Overview
Problem
Conventional clamp meters lack immediate indication of electrical parameters and safety features, making it difficult for users to determine if an object is carrying electric current, which poses a safety risk.
Innovation Solution
A clamp meter design featuring pivotally connected jaws with current transformers, indicator lights, and a processor that displays electrical parameters, allowing users to visually assess current and voltage through the number of lit indicator lights and precise data on a display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional clamp meters use only display panels for showing electrical parameters, then the device structure remains simple, but users cannot immediately determine if an object is carrying electric current, creating safety risks
Solution Approach 1:
The patent applies color changes by using indicator lights of different colors (red, yellow, green) to represent different current magnitude ranges. These indicator lights provide immediate visual feedback about the presence and magnitude of electrical current, allowing users to quickly assess safety conditions without relying solely on display panels, thus resolving the contradiction between safety and device complexity
Solution Approach 2:
The patent implements preliminary action by providing visual indication through indicator lights before users physically contact or work near electrical components. The system preemptively warns users of potential electrical hazards through the indicator light display, allowing them to take preventive measures before any harmful contact occurs, thereby improving safety without significantly complicating the device structure
2Productivity
If clamp meters provide detailed numerical data on display panels, then measurement precision is improved, but users cannot quickly assess the magnitude range of current without carefully reading numerical values
Solution Approach 1:
The patent applies segmentation by dividing the current magnitude indication into discrete ranges, each represented by specific indicator lights. Instead of presenting a continuous numerical value that requires interpretation, the system segments the current range into multiple levels (e.g., low, medium, high) with corresponding visual indicators, allowing users to instantly grasp the magnitude range without carefully reading numerical data, thus resolving the contradiction between information retrieval speed and measurement precision
Solution Approach 2:
The patent implements partial action by providing only the essential information needed for quick assessment through indicator lights showing current magnitude ranges, rather than displaying all possible detailed measurements. This selective presentation of information allows users to rapidly determine whether current levels are within safe ranges without being overwhelmed by excessive numerical data, thereby improving productivity while maintaining sufficient measurement precision for safety purposes
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
Enhances user safety by providing immediate visual feedback on current and voltage presence and magnitude, reducing the risk of injury from live electrical contacts.
Implementation Method 1
After sensing electromagnetic signals related to current, voltage or resistance, a sensor connected to the first and the second current transformers gets signals
Data Source
AI summary
A clamp meter is revealed. The clamp includes a pair of jaws disposed on a main body. The main body is arranged with a display panel and a plurality of buttons. The pair of jaws can be opened or closed by manual operation to get data of an object that users intend to measure. The data is transferred to the main body and shown on the display panel. Users can switch to the electrical parameter that they need by pressing the buttons. The clamp meter features on a plurality of indicator lights disposed on the pair of jaws. Users can obtain current data directly by observing the indicator lights.