Measurement Device Calculation Unit for Oscilloscope Parameter Configuration

Solution Overview

Problem

Users of modern oscilloscopes face difficulties in determining the correct parameter values for measuring complex electrical circuits due to the need to manually calculate and input values for multiple parameters, which can be cumbersome and error-prone, especially in circuits with voltage amplifiers and dividers.

Innovation Solution

A measurement device with a calculation unit that allows users to input parameter values and select calculation functions via function keys, enabling automatic calculation and replacement of parameter values, thereby simplifying the configuration of measurement devices for complex electrical circuits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users manually calculate and input parameter values for multiple parameters, then measurement device can be configured, but user burden increases and errors occur

Engineering Contradiction:

Improveease of configurationVSAvoidtime for parameter input

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The measurement device automatically determines parameter values by performing calculations based on circuit topology and previously measured values. The device serves itself by using its own measurement capabilities and internal calculation unit to generate configuration parameters without requiring manual user calculation and input for each parameter.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The device performs preliminary calculations to determine parameter values before actual measurement operations. By pre-calculating parameter values based on circuit analysis and previous measurements, the system prepares configuration data in advance, eliminating the need for users to manually input parameters during the measurement process.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If users manually calculate parameter values for complex circuits, then measurement can be performed, but error rate increases

Engineering Contradiction:

Improveaccuracy of parameter valuesVSAvoidcomplexity of parameter determination

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The measurement device automatically determines parameter values by performing calculations based on circuit topology and previously measured values. The device serves itself by using its own measurement capabilities and internal calculation unit to generate configuration parameters without requiring manual user calculation and input for each parameter.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system uses feedback from previous measurement operations and circuit analysis to automatically determine subsequent parameter values. By continuously using measurement results and circuit topology information to inform parameter calculations, the system maintains high accuracy while handling complex circuit configurations.

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If multiple parameter fields are provided for each parameter, then configuration flexibility increases, but operation complexity increases

Engineering Contradiction:

Improveconfiguration flexibilityVSAvoidsimplicity of parameter input

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The measurement device automatically determines parameter values by performing calculations based on circuit topology and previously measured values. The device serves itself by using its own measurement capabilities and internal calculation unit to generate configuration parameters without requiring manual user calculation and input for each parameter.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The calculation unit serves multiple functions: it performs circuit topology analysis, calculates parameter values, validates configurations, and adapts to different circuit types. This multi-functional approach allows the device to maintain configuration flexibility across various measurement scenarios while keeping the user interface simple.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3301459B1Measurement device and configuration method

Publication Date: 2021.03.31 ROHDE & SCHWARZ GMBH & CO KG

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AI summary

The present invention provides a measurement device for measuring a number of physical variables, the measurement device comprising a number of parameter inputs, wherein the parameter inputs are configured to receive parameter values, which configure at least one function of the measurement device, a calculation unit, which controllably performs calculation functions with at least one parameter value provided in a respective parameter input and replaces the parameter value in the respective parameter input with the result of the calculation, and a number of function keys, wherein every function key controls the calculation unit to perform a predetermined one of the calculation functions.