Oil State Detection Using Periodic Oscillation Frequency
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Solution Overview
Problem
Existing sensors for detecting degradation substances in oil lack accuracy due to non-uniform dispersion of these substances, leading to inconsistent output values and inaccurate measurements.
Innovation Solution
An oil state detection apparatus utilizing an oscillation circuit with a coil and capacitor, where one of the components is immersed in the oil, detects the amount of degradation substances by measuring changes in oscillatory frequency over a predetermined period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is provided in the oil to detect degradation substance, then the detection function is achieved, but the measurement accuracy deteriorates due to non-uniform dispersion of degradation substance
Solution Approach 1:
The patent applies periodic action by measuring the oscillation frequency at multiple different time points and using the range (difference) of these frequency values as the detection result. This periodic measurement approach captures the variability caused by non-uniform dispersion of degradation substances, transforming the reliability issue into a useful measurement parameter that reflects the true state of oil degradation.
2Device complexity
If a sensor is merely provided in the oil, then the device complexity is reduced, but the measurement precision deteriorates because degradation substance is not uniformly dispersed
Solution Approach 1:
The patent maintains simple sensor structure while improving measurement precision by implementing periodic measurements at multiple time points. The oscillation frequency is measured repeatedly, and the range of these measurements is used as the detection result, thereby capturing the dispersion characteristics of degradation substances without complicating the sensor design.
Solution Approach 2:
The patent changes the measurement parameter from a single instantaneous frequency value to the range (difference) of frequency values obtained at multiple time points. This parameter transformation allows the simple sensor to accurately reflect the non-uniform dispersion state of degradation substances, converting a limitation into a measurement advantage.
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
Accurately measures the amount of degradation substances, such as magnetic or dielectric substances, in oil by accounting for variations in oscillatory frequency, enhancing detection precision.
Implementation Method 1
the detection device detects the amount of degradation substance contained in the oil based on the value of change in the oscillatory frequency of the oscillation circuit in a predetermined period
Data Source
AI summary
To detect the amount of degradation substance contained in oil.The present oil state detection apparatus includes an oscillation circuit having a coil and a capacitor and a detection device. Any one of the coil or the capacitor is immersed in oil. The detection device detects the amount of degradation substance contained in the oil based on the value of change in the oscillatory frequency of the oscillation circuit in a predetermined period.