Piezoelectric Circuitry Discharge Failure Detection via Time Comparison
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Solution Overview
Problem
Conventional methods only identify failure conditions of piezoelectric elements but fail to specifically detect discharge failure in piezoelectric valves and circuitry, which is critical in precise applications like medical devices.
Innovation Solution
A method and apparatus using a microcontroller to determine charging and discharging times in piezoelectric circuitry, comparing these times across cycles to identify discharge failure by detecting differences greater than a predefined threshold, thereby pinpointing issues in the discharging circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional failure identification methods are used for piezoelectric elements, then general failure conditions can be detected, but discharge failure in piezoelectric valves and circuitry cannot be specifically detected
Solution Approach 1:
The failure detection method is segmented into distinct phases: charging phase time measurement and discharging phase time measurement. By dividing the operational cycle into separate measurable segments, the patent enables specific detection of discharge failures that conventional unified methods cannot identify.
Solution Approach 2:
The patent monitors changes in charging time and discharging time parameters across multiple operational cycles. By detecting parameter variations (time differences) beyond threshold values, the system identifies discharge failures through quantitative parameter analysis rather than qualitative assessment.
2Reliability
If piezoelectric valves are used in precise applications like medical devices, then precise control and functionality are achieved, but the critical importance of detecting discharge failure increases
Solution Approach 1:
The patent implements a feedback mechanism where charging time and discharging time are continuously measured and compared against threshold values. This feedback loop enables real-time detection of discharge failures, ensuring reliable operation of critical medical devices by identifying anomalies before they compromise device functionality.
3Measurement precision
If a microcontroller measures charging and discharging times across multiple cycles, then discharge failure can be identified through time comparison, but the complexity of the monitoring system increases
Solution Approach 1:
The microcontroller performs multiple functions: it measures charging time, measures discharging time, stores these values, compares them against thresholds, and identifies failures. By consolidating these functions into a single multi-functional component, the patent achieves precise discharge failure identification without proportionally increasing overall system complexity.
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
Effectively identifies discharge failure in piezoelectric circuitry, ensuring precise control and functionality in medical and other applications by accurately determining time discrepancies, thus preventing incomplete discharge and maintaining device performance.
Implementation Method 1
Piezoelectric effect is generally known as generation of electric charge in certain non-conducting material when subjected to mechanical stress such as pressure or vibration
Implementation Method 2
Piezoelectric elements are capacitive consumers, which, contract or expand, depending on the charge state in each case, i.e., depending on the emerging or applied voltage
Data Source
AI summary
The present disclosure discloses a method and apparatus for identifying discharge failure of a piezoelectric circuitry. The apparatus comprises a piezoelectric circuitry consisting of charging and discharging circuit with a microcontroller to compute the time required to charge and discharge the piezoelectric element respectively. Based on the first charging time and the second charging time corresponding to the first and second charging-discharging cycle respectively, the difference between the first and the second charging time is determined. The discharge failure in the piezoelectric circuit is identified where the first charging time is greater than the second charging time.