Portable Electrical Testing Apparatus Using Multiplex Switch
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Solution Overview
Problem
Conventional devices for testing electrical functions of touch panels are large, expensive, and lack portability, making them unsuitable for efficient and portable testing of electrical functions in different locations.
Innovation Solution
A compact apparatus comprising a clamping tool, probes, and a multiplex switch that can be clamped near the bonding area of an electronic device, allowing for electrical connection to multiple pins and forming a test loop with a measurement instrument to measure electrical functions such as resistance, voltage, and capacitance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional testing devices are used, then electrical function testing can be performed, but the device size is large and portability is poor
Solution Approach 1:
The conventional integrated testing device is segmented into separate functional components: a clamping tool with probes for contact establishment, a multiplex switch for signal routing, and a measurement instrument for actual measurements. This segmentation allows each component to be optimized independently, with the clamping tool being compact and portable while the measurement instrument can be shared across multiple testing locations.
Solution Approach 2:
The multiplex switch serves multiple functions: it routes signals from multiple probe groups to a single measurement instrument, enables sequential testing of different bonding areas, and allows the same measurement instrument to be used across different testing locations. This multi-functionality reduces the need for dedicated testing equipment at each location, improving portability.
2Reliability
If conventional testing devices are used, then comprehensive electrical function testing is achieved, but the cost is high
Solution Approach 1:
Multiple probe groups that would traditionally require separate testing devices are merged into a single testing system through the multiplex switch. The probes from different bonding areas are electrically connected to the same measurement instrument via the multiplex switch, allowing comprehensive testing across multiple locations using one cost-effective device rather than multiple expensive conventional devices.
Solution Approach 2:
The multiplex switch acts as an intermediary between the multiple probe groups and the single measurement instrument. It enables signal routing and switching functionality that would otherwise require multiple dedicated measurement instruments, thereby reducing overall system cost while maintaining comprehensive testing capability.
3Adaptability or versatility
If conventional testing devices are used, then all bonding areas can be tested, but the device volume prevents testing in different locations
Solution Approach 1:
The testing system is segmented into a portable clamping tool portion that can be easily moved to different bonding areas, and a measurement instrument portion that can remain stationary or be moved as needed. The clamping tool with its integrated probes and multiplex switch is designed to be compact and portable, enabling testing at multiple locations without requiring a large-volume conventional device at each location.
Data Source
AI summary
The embodiments of the present disclosure provide an apparatus, system and method for testing electrical functions. The apparatus for testing electrical functions comprises: at least one clamping tool configured to be capable of being clamped in the vicinity of at least one bonding area of an electronic device; at least one row of probes configured to be electrically connected to multiple pins in the at least one bonding area respectively when the at least one clamping tool is clamped; and at least one multiplex switch. Each multiplex switch has a first terminal comprising multiple ports, and a second terminal comprising at least one port and capable of being connected to a measurement instrument, and the at least one multiplex switch is configured to turn on or turn off an electrical connection between the multiple ports of the first terminal and at least one port of the second terminal.