Dynamic Probe With Switching Unit For Signal Impedance Adaptation
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Solution Overview
Problem
Current measurement systems require multiple probes and manual adjustments to handle dynamically changing characteristics of devices under test, leading to increased effort and error risk when probing dynamic data signals.
Innovation Solution
A dynamic probe with a switching unit that automatically adapts to changing device characteristics, using a switching circuit with amplifiers and a detection unit to select the appropriate mode for processing signals, allowing a single contact and reducing the need for manual input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple probes are used to measure different operation modes, then measurement accuracy is improved, but device complexity and measurement time increase
Solution Approach 1:
The probe is designed with a switching unit that enables a single probe to perform multiple measurement functions by dynamically changing its input impedance characteristics. The probe can switch between high-impedance mode for low-frequency signals and low-impedance mode for high-frequency signals, eliminating the need for multiple specialized probes while maintaining measurement accuracy across different operation modes.
Solution Approach 2:
The probe incorporates a switching unit that dynamically adapts the input impedance based on the frequency characteristics of the signal being measured. The switching unit responds to detected signal characteristics and automatically switches between different impedance states, allowing the probe to optimize its performance for the current measurement conditions without manual intervention.
2Measurement precision
If multiple probes are used for different operation modes, then measurement accuracy is improved, but measurement time increases
Solution Approach 1:
The switching unit operates continuously during the measurement process, automatically detecting signal characteristics and switching impedance modes in real-time without interrupting the measurement. This continuous adaptation allows the probe to maintain optimal measurement conditions throughout the entire measurement period, eliminating the need for sequential measurements with different probes.
Solution Approach 2:
The probe dynamically adjusts its input impedance during the measurement process based on the detected signal frequency characteristics. This dynamic adaptation occurs automatically and continuously, allowing the probe to maintain measurement accuracy across varying operation modes without requiring multiple separate measurement operations.
3Adaptability or versatility
If manual switching between probes is performed, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The probe incorporates a detection unit and switching unit that automatically detect signal characteristics and switch impedance modes without user intervention. The system serves itself by continuously monitoring the input signal and autonomously adjusting its impedance characteristics to match the measurement requirements, eliminating the need for manual switching while maintaining full adaptability.
Solution Approach 2:
The detection unit continuously monitors the frequency characteristics of the input signal and provides feedback to the switching unit. Based on this feedback, the switching unit automatically adjusts the input impedance to the appropriate mode, creating a closed-loop system that adapts to changing measurement conditions without requiring manual input from the operator.
Data Source
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AI summary
A dynamic probe (16) for probing a dynamic data signal comprising a switching unit (20) configured to provide at least two different input impedances, wherein the switching unit (20) is configured to select a first input impedance in a first mode and a second input impedance in a second mode, the switching unit (20) being configured to be operated dynamically based on an event in the data signal processed. Further, a dynamic measurement system (14) and a method for probing a dynamic data signal are described.