Flow Meter Signal Circuit With Compensation Pulses for Residual Vibration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Transducers often produce residual vibrations after being triggered, leading to increased hardware costs and processing time due to prolonged additional vibration periods, which negatively impact signal processing and delay the input of subsequent signal strings.
Innovation Solution
A signal generation circuit that includes a signal generation unit and a transmitter, generating a transmission signal with a data signal and a compensation signal, where the compensation signal has opposite phases and different waveform parameters to reduce the duration and amplitude of additional vibrations in the transducer output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a transducer is triggered by an input signal, then the transducer generates signal waves, but the transducer produces residual vibrations that extend the output signal duration and adversely affect signal processing
Solution Approach 1:
The patent applies preliminary anti-action by introducing a compensation signal with opposite phase to the residual vibration before the transducer completes its natural decay. This compensation signal is generated in advance based on predicted residual vibration characteristics, and it actively counteracts the harmful vibrations before they can significantly impact subsequent signal processing operations.
Solution Approach 2:
The patent converts the harmful residual vibrations into a beneficial effect by using them as a reference to generate a compensation signal. The residual vibration characteristics (frequency, amplitude, phase) are analyzed and used to create an opposing signal that, when combined with the original output, cancels out the unwanted vibrations and leaves only the desired signal components.
2Duration of action of moving object
If the additional vibration continues for too long, then the transducer output contains extended signal duration, but the hardware cost and processing time increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the compensation signal parameters (amplitude, phase, frequency) based on the actual residual vibration characteristics observed in the transducer output. The system monitors the vibration decay and modifies the compensation signal parameters in real-time to achieve optimal cancellation with minimal hardware resources.
3Measurement precision
If the waiting time for the additional vibration to complete is longer, then the signal processing can be completed accurately, but the input of the next string of signals is delayed
Solution Approach 1:
The patent applies preliminary action by pre-calculating and preparing the compensation signal before the residual vibrations significantly interfere with the next signal string. The system anticipates the vibration decay pattern and initiates the compensation process in advance, allowing the transducer to be ready for the next signal input without waiting for complete natural decay.
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 effectively minimizes additional vibrations in transducers, enhancing operation frequency, performance, and accuracy by reducing the time and amplitude of residual vibrations, thereby improving overall signal processing efficiency.
Implementation Method 1
the transmitter is configured to convert the output signal into the transmission signal; wherein the transmission signal includes a data signal and a compensation signal
Implementation Method 2
generate a transmission signal to trigger a first transducer to generate a first transducer output signal
Implementation Method 3
the compensation signal includes at least one second pulse wave, wherein the first pulse wave and the second pulse wave have opposite phases
Data Source
AI summary
The application discloses a signal generation circuit (100), configured to generate a transmission signal to trigger a first transducer to generate a first transducer output signal; the signal generation circuit includes: a signal generation unit (106), configured to generate an output signal; and a transmitter (104), coupled to the signal generation unit, wherein the transmitter is configured to convert the output signal into the transmission signal; wherein the transmission signal includes a data signal and a compensation signal, the data signal includes at least one first pulse wave, the compensation signal includes at least one second pulse wave, the first pulse wave and the second pulse wave have opposite phases, and the first pulse wave has an other waveform parameter different from an other waveform parameter of the second pulse wave. The present application further provides a related chip, a flow meter and a method.