Oscilloscope Digital Voltmeter Signal Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In oscilloscope operations, users lose control of measurements when the trigger condition is not met, especially in auto-trigger mode, and in norm-trigger mode, they lack information about incoming signals, making it difficult to adjust settings effectively.
Innovation Solution
An oscilloscope with a digital voltmeter that processes untriggered signal values to determine characteristic values like peak-to-peak, root mean square, and mean values within a predefined interval, providing output values and graphical representations to help users adjust trigger conditions without automatic changes, allowing for real-time indication of signal properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If auto-trigger mode is used to automatically adapt trigger conditions, then data acquisition is maintained, but the user loses control of the measurement
Solution Approach 1:
The digital voltmeter provides continuous feedback about the incoming signal's voltage level to the user interface. This feedback mechanism allows users to see the actual signal characteristics without automatic trigger condition changes, enabling informed manual adjustment while maintaining measurement control.
Solution Approach 2:
The digital voltmeter acts as an intermediary between the incoming signal and the trigger unit. It measures and displays signal characteristics independently, providing users with information about the signal state without directly controlling the trigger condition, thus mediating between automatic operation and user control.
2Ease of operation
If norm-trigger mode is used to maintain user control, then user control is preserved, but the user lacks information about incoming signals making adjustment difficult
Solution Approach 1:
The digital voltmeter continuously monitors and displays the voltage level of incoming signals in real-time. This feedback provides users with essential signal information without automatically changing trigger conditions, enabling informed manual adjustment while preserving user control.
Solution Approach 2:
The digital voltmeter independently measures and displays signal characteristics without requiring user intervention or automatic trigger adaptation. It serves itself by continuously providing signal information, enabling users to make informed decisions about trigger condition adjustment.
3Productivity
If trigger time-out is set to prevent no-trigger situations, then data acquisition continuity is improved, but automatic changes cause loss of user control
Solution Approach 1:
The digital voltmeter provides continuous feedback about signal voltage levels, allowing users to see why trigger conditions are not met. This feedback enables users to understand measurement continuity issues and adjust trigger conditions manually rather than relying on automatic time-out triggered changes.
Solution Approach 2:
The digital voltmeter mediates between the trigger time-out mechanism and user control by providing independent signal information. It allows users to understand signal characteristics during time-out periods and make informed decisions about whether to adjust trigger conditions or wait for signal changes.
Data Source
AI summary
An oscilloscope has a measurement channel comprising an analog-to-digital converter providing digitized measurement input signal values, a triggering unit, an acquisition memory, and a digital voltmeter connected to said analog-to-digital converter. The digital voltmeter is configured for receiving untriggered values, determining a characteristic value of said untriggered values in a predefined interval, determining an output value based on said characteristic value, and storing said output value in an output memory of the oscilloscope. Further, a method for analyzing a measured signal using an oscilloscope is provided.