Electronic Balance Real-Time Disturbance Display
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Solution Overview
Problem
Existing electronic balances face challenges in accurately determining the magnitude of disturbances such as vibrations and wind, which cause weighing errors, as users need to repeatedly weigh the same weight to confirm disturbances, hindering real-time recognition and specimen weighing.
Innovation Solution
An electronic balance with a load measurement mechanism and arithmetic processing unit that extracts and displays the vibration component of the natural frequency from weighing data, allowing users to recognize disturbance magnitude in real time through correlation with weighing values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users repeatedly weigh the same weight to confirm the presence or absence of disturbance, then weighing accuracy can be verified, but weighing of specimen cannot be performed during this process
Solution Approach 1:
The system performs preliminary detection of disturbance magnitude using vibration component analysis before actual specimen weighing begins. The arithmetic processing unit continuously monitors vibration components at the natural frequency, allowing users to assess disturbance levels in advance and proceed with specimen weighing only when conditions are suitable, eliminating the need for repeated test weighings.
Solution Approach 2:
The patent replaces the mechanical approach of repeatedly placing and removing weights for disturbance verification with an automated signal processing system. The load detection unit and arithmetic processing unit automatically analyze vibration components in the weighing data, substituting manual repeated weighing with automated computational analysis that provides real-time disturbance assessment without interfering with specimen weighing operations.
2Loss of information
If environmental measurement data such as atmospheric pressure and temperature are displayed in correlation with weighing values, then users can visually recognize environmental conditions, but users cannot simply know the magnitude of disturbance in real time
Solution Approach 1:
The system extracts the specific vibration component at the natural frequency from the complex weighing data using filtering and signal processing techniques. By isolating this particular frequency component, the system directly quantifies disturbance magnitude without requiring users to interpret multiple environmental parameters or perform complex analysis, providing immediate and intuitive disturbance information.
Solution Approach 2:
The system visually represents disturbance magnitude through color-coded indicators or graphical displays that change based on the amplitude of the extracted vibration component. This allows users to instantly grasp disturbance levels through intuitive visual cues rather than analyzing numerical environmental data, significantly improving ease of operation while maintaining full information availability.
3Measurement precision
If the vibration component of the natural frequency is displayed as a numerical value, then precise disturbance data is provided, but the value fluctuates and is difficult for users to recognize
Solution Approach 1:
The system performs preliminary processing of the fluctuating vibration component data by applying filtering, averaging, or envelope detection techniques before display. This preprocessing stabilizes the numerical values while preserving the essential disturbance information, making the data both precise and easily recognizable without requiring users to interpret rapidly fluctuating raw signals.
Solution Approach 2:
The system complements or replaces fluctuating numerical displays with visual indicators such as color-coded bars, LED segments, or graphical representations that reflect the magnitude of disturbance. These visual elements provide stable, intuitive feedback that is easy to recognize at a glance while maintaining the precision of the underlying vibration component measurements.
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
Enables users to instantly identify disturbance magnitude, facilitating real-time disturbance recognition and reducing the need for repeated weighing, thereby improving weighing accuracy and efficiency.
Implementation Method 1
In electronic balances such as electromagnetic force type electronic balances, disturbances such as vibration and wind are detected as load fluctuations by a load detection unit
Implementation Method 2
the arithmetic processing unit is configured to extract a vibration component of the natural frequency from the weighing data detected by the load measurement mechanism
Data Source
AI summary
Provided is an electronic balance that enables a user to recognize the magnitude of disturbances in real time. An electronic balance (1) whose natural frequency is known, includes a load measurement mechanism (4) configured to detect weighing data (Zn), and an arithmetic processing unit (8) configured to perform arithmetic processing by using the weighing data (Zn), wherein the arithmetic processing unit (8) extracts a vibration component (Fr) of the natural frequency from the weighing data (Zn) detected by the load measurement mechanism (4) and displays the vibration component (Fr) of the natural frequency. By using the vibration component (Fr) of the natural frequency as an index of disturbances, it becomes possible to recognize in real time the magnitude of the disturbances during weighing.