Pump Signal Calibration Using Input and Output Feedback
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Solution Overview
Problem
Pump calibration in systems with connected devices is challenging due to signal changes by the time they reach the pump, leading to unnecessary adjustments if not properly calibrated.
Innovation Solution
A method and system for calibrating pump input and output signals using a processor to set nominative values based on measured signal values, allowing for precise control of pump speed through input and output meters, with specific signal values ranging from 2-6 mA and 18-22 mA for minimum and maximum control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pump calibration is performed without proper signal measurement, then system adjustments are made, but the adjustments are unnecessary and reduce system efficiency
Solution Approach 1:
The patent implements feedback by measuring the actual received signal value at the pump and comparing it with the transmitted signal value. This feedback loop allows the system to determine whether calibration is actually needed, preventing unnecessary adjustments and improving calibration efficiency.
Solution Approach 2:
The patent replaces manual trial-and-adjustment calibration methods with an automated electronic measurement and comparison system. The processor automatically measures signal values, compares them, and determines calibration needs, substituting mechanical adjustment processes with electronic detection and control.
2Measurement precision
If signal values are measured at different locations in the system, then signal changes can be detected, but measurement precision is required to distinguish actual changes from noise
Solution Approach 1:
The patent introduces an intermediary measurement system consisting of meters and a processor that objectively measure and compare signal values. This intermediary layer provides precise measurement without requiring complex manual interpretation, bridging the gap between simple measurement and accurate calibration determination.
3Reliability
If pump input and output are calibrated with connected devices, then accurate pump operation is achieved, but the calibration process becomes more complex
Solution Approach 1:
The patent merges the calibration of pump input and output into a unified process. By measuring both transmitted and received signal values through a single integrated measurement system and processor, the patent simplifies what would otherwise be separate calibration procedures, reducing overall process complexity while maintaining comprehensive calibration accuracy.
Data Source
AI summary
A method of calibrating a pump system can include providing a pump, calibrating a pump input with an input device connected to the pump, and calibrating a pump output with an output device connected to the pump. Calibrating the pump input can include selecting a first input signal value, generating a transmitted input signal corresponding to the first input signal value, and setting a nominative pump input value to the first input signal value. Calibrating the pump output can include receiving a received output signal outputted from the pump, and setting a nominative pump output value to the first input signal value.