Wireless Vibrating Wire Acquisition Instrument for Low-Temperature Data Reading
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Solution Overview
Problem
Conventional vibrating wire acquisition instruments are not suitable for extremely cold environments and cannot read data from vibrating wire sensors with different excitation voltages, requiring professional intervention and reducing engineering project efficiency.
Innovation Solution
An intelligent frequency reading method that dynamically adjusts excitation voltages through frequency pre-sweeping, primary voltage regulation, secondary voltage regulation, low-voltage full sweeping, and mixed sweeping modes to successfully read data from vibrating wire sensors, and a wireless vibrating wire acquisition instrument with a processor and memory to implement this method, capable of operating from -40°C to 80°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional vibrating wire acquisition instrument is used, then it can read data from vibrating wire sensors with standard excitation voltages, but it cannot operate in extremely cold environments (below -20°C)
Solution Approach 1:
The patent changes the working temperature parameter of the acquisition instrument from -20°C to 80°C by selecting cold-resistant components and optimizing the internal heating circuit, enabling operation in extremely cold environments while maintaining reading capability for standard vibrating wire sensors
2Adaptability or versatility
If fixed excitation voltage settings are used in acquisition instrument, then it can read data from sensors with matching voltages, but it cannot read data from sensors with different excitation voltages (2V, 5V, 12V, 24V, 36V)
Solution Approach 1:
The patent implements dynamic excitation voltage adjustment by introducing a voltage regulation module that automatically detects the sensor type and adjusts the excitation voltage in real-time, allowing the same instrument to read data from sensors with different excitation voltages without manual intervention
Solution Approach 2:
The patent uses feedback mechanisms where the instrument detects the sensor's response to excitation signals and automatically adjusts the voltage level based on the received signal strength, enabling adaptive matching with different sensor types
3Measurement precision
If professional technical personnel intervention is required for setting different excitation voltages, then accurate reading can be achieved, but working efficiency of engineering project implementation is reduced
Solution Approach 1:
The patent implements self-service functionality where the acquisition instrument automatically detects sensor parameters and configures appropriate excitation voltages without requiring professional technical personnel intervention, thereby maintaining measurement precision while significantly improving working efficiency
4Adaptability or versatility
If high excitation voltages (12V, 24V, 36V) are used for low-end sensors, then data can be acquired, but the instrument cannot read data from high-end sensors requiring low excitation voltages (2V, 5V)
Solution Approach 1:
The patent uses dynamic voltage adjustment to match the excitation voltage to the specific sensor type being measured, automatically selecting low voltage for high-end sensors and high voltage for low-end sensors, thereby achieving universal compatibility while optimizing energy consumption
Data Source
AI summary
The present application discloses an intelligent frequency reading method applicable to a low-temperature environment and a wireless vibrating wire acquisition instrument. The intelligent frequency reading method includes the following steps: frequency pre-sweeping excitation: performing frequency pre-sweeping on a vibrating wire sensor by using the wireless vibrating wire acquisition instrument, if acquisition is successful, recording an acquisition frequency, and if the acquisition is not successful, entering frequency re-sweeping excitation, wherein the frequency re-sweeping excitation includes the following steps: primary voltage regulation: if the acquisition is not successful by the frequency pre-sweeping excitation, performing primary voltage regulation, increasing an excitation voltage until excitation is successful, and recording an excitation success voltage value; if the excitation is not successful by the primary voltage regulation, performing secondary voltage regulation, increasing the excitation voltage until the excitation is successful, and recording the excitation success voltage value.