Dual Load Tester with Segmented Resistive Loads
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Solution Overview
Problem
Existing testers cannot simultaneously test multiple types of devices, such as batteries, charging systems, and starter motors, under load conditions that mimic actual operating loads, especially those with varying voltage or current ratings with a single device.
Innovation Solution
A dual load tester with two resistive loads that can be connected in series or used individually, allowing for testing of devices with different voltages and sizes by switching between them, applying loads similar to actual operating conditions, and featuring a portable, hand-held design with a switching mechanism and voltage meter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single tester is used to test multiple device types and voltage ratings, then the versatility and adaptability of the tester is improved, but the device complexity increases
Solution Approach 1:
The tester is divided into two separate resistive load units (first and second resistive loads) that can be independently connected to the device under test. This segmentation allows the same physical tester to provide different load configurations for testing various voltage ratings (12V, 24V) and device types, thereby achieving versatility without requiring multiple separate testing devices.
Solution Approach 2:
The tester is designed with universal functionality to test multiple device types (batteries, charging systems, starter motors) and voltage ratings (12V and 24V) using the same basic hardware structure. The switching mechanism enables a single tester to adapt its function based on the testing requirements, eliminating the need for multiple specialized testing devices.
2Measurement precision
If the tester applies load conditions similar to actual operating loads, then the measurement precision and reliability of the test results is improved, but the device complexity increases
Solution Approach 1:
The tester employs a dynamic switching mechanism that allows the operator to select between different resistive load configurations (first resistive load, second resistive load, or both in series) based on the specific device being tested. This dynamic adaptability enables the application of appropriate load conditions that simulate actual operating loads for different voltage ratings and device types, thereby improving measurement precision without requiring a permanently complex load application system.
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 efficient testing of multiple device types and ratings, including 12-volt and 24-volt batteries, charging systems, and starter motors, by applying loads ranging from 60 to 120 amperes, providing accurate results under conditions similar to normal operation.
Implementation Method 1
The tester of the present invention comprises two resistive loads, wherein the two resistive loads may be electrically connected in series or one of the resistive loads may be used individually to test batteries, charging systems, starter motors or other devices of different voltages and sizes
Data Source
AI summary
The apparatus relates to a dual load tester that is hand held and highly portable. The dual load tester includes two resistive loads, and the two resistive loads may be used in series or one of the resistive loads may be used individually to test batteries, charging systems and starter motors of different voltage and current ratings. The operator of the device may, by closing the appropriate switch, first test a 12-volt battery and then test a 24-volt battery. In a similar manner, the tester may be used to test charging systems and starter motors of different voltage and current ratings. The testing functions of the dual load tester may be automated for testing various devices. The dual load tester includes a first resistive load and a second resistive load. The resistive loads may be used together or individually to test a battery, charging system, starter motor or other device.