Hydraulic Force Comparison for Precise Large-Load Calibration
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Solution Overview
Problem
Existing technologies face challenges in precisely measuring large force values, as devices become excessively large and expensive when verifying sensors with tens of thousands of tons, and there is a need for a more efficient method to detect precision in force standard machines.
Innovation Solution
A precision detection device comprising a first hydraulic cylinder, a pipeline, and a force loading device, where a liquid medium is used to measure pressure increments, with measurement devices to calculate the pressure values on the liquid level and acting forces on pistons, utilizing the Pascal isobaric principle to determine the measurement precision of a force standard machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a force value comparison machine is used to verify force standards, then measurement capability is provided, but the device is large in size and cannot be easily transported
Solution Approach 1:
The force value comparison machine is divided into a main body and a portable measurement unit. The measurement unit can be separated and transported independently to different measurement locations, while the main body remains at a fixed location. This segmentation allows the measurement functionality to be mobile without requiring the entire system to be transported.
Solution Approach 2:
A communication unit is introduced as an intermediary between the main body and the portable measurement unit. This communication unit transmits measurement data and control signals between the two parts, enabling the portable unit to function independently while maintaining connection to the main system for data processing and analysis.
2Measurement precision
If conventional measurement devices are used, then force values can be measured, but measurement errors occur due to factors like gravity, magnetic force, and vibration
Solution Approach 1:
The patent replaces conventional mechanical measurement mechanisms with a sensor-based measurement system. Sensors are used to detect force values, and signal processing techniques are employed to filter out interference from gravity, magnetic forces, and vibrations. This substitution of mechanical systems with sensor-based systems improves measurement accuracy by reducing sensitivity to external disturbances.
3Reliability
If multiple verification steps are performed to ensure accuracy, then measurement reliability improves, but the process becomes time-consuming
Solution Approach 1:
The system performs preliminary calibration and verification procedures automatically during initial setup and before measurement sessions. By pre-configuring measurement parameters and performing baseline verifications in advance, the system reduces the time required for repeated verification during actual measurements while maintaining measurement reliability.
Solution Approach 2:
The system implements automated feedback mechanisms that continuously monitor measurement quality and adjust measurement parameters in real-time. When measurement conditions are verified to be within acceptable ranges, the system can proceed with measurements without requiring manual verification steps, thereby reducing verification time while maintaining reliability through continuous automated monitoring.
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
The solution enables precise detection of large force values with a simpler structure, allowing for accurate measurement precision calculation, reducing the complexity and cost associated with existing methods, and effectively determining the measurement precision of force standard machines.
Implementation Method 1
utilizing the Pascal isobaric principle to determine the measurement precision of a force standard machine
Data Source
Figure 1
AI summary
A precision detection device for a force standard machine includes a first hydraulic cylinder, a pipeline and a force loading device. A liquid medium is disposed in the first hydraulic cylinder, and a liquid level area of the liquid medium is a known value. The pipeline is a hollow tubular structure, and a first end of the pipeline is communicated with the liquid medium in the first hydraulic cylinder. The force loading device acts on the liquid medium in the first hydraulic cylinder to produce a pressure increment or a pressure intensity increment on the liquid medium. A force value comparison machine and a precision detection method for a force standard machine are also provided.