Feixun Tutorial: Detailed introduction to the development principles of the vibrating wire acquisition and reading module
The vibrating wire acquisition and reading module is a module used to collect string vibration information. Its principle is to sense the vibration of the string through a sensor, convert it into an electrical signal, and then undergo analog processing and digital processing, and finally output it as a signal for subsequent processing. Digital signal.
The vibrating wire acquisition and reading module consists of three main parts: sensor, analog processing circuit and digital signal processing circuit. Among them, the sensor is responsible for converting the string vibration into an electrical signal. The analog processing circuit amplifies and filters the signal output by the sensor to improve the accuracy and stability of the signal. The digital signal processing circuit digitizes the analog signal. Perform tasks such as noise suppression, data processing and storage, and output as digital signals.
The sensor is the core component of the vibrating wire acquisition and reading module. Its main function is to convert the vibration of the string into an electrical signal. Common sensors include piezoelectric sensors and resistive sensors. Piezoelectric sensors output electrical signals by converting vibrations of strings into electric charges and measuring the amount of electric charges. The resistive sensor uses the principle that the deformation caused by the vibration of the string causes the resistance to change, and converts the signal into an electrical signal output.
The analog processing circuit is the part that amplifies and filters the signal output by the sensor. During the amplification process, the analog circuit improves the signal-to-noise ratio and enhances the stability and accuracy of the signal by increasing the amplitude of the signal. During the filtering process, the analog circuit improves the accuracy and reliability of the signal by removing high-frequency interference signals such as noise.
The digital signal processing circuit is the part that digitizes analog signals and performs tasks such as noise suppression, data processing, and storage. Its main task is to convert analog signals into digital signals, perform digital filtering and digital signal processing, etc., to make the output digital signals more accurate and reliable. At the same time, the digital signal processing circuit can also store and process the collected data to facilitate subsequent data analysis and processing.
In summary, the vibrating wire acquisition and reading module is a key component for collecting string vibration signals. It senses string vibration through a sensor and converts it into an electrical signal. After analog processing and digital processing, it is finally output as a digital signal. In the process of collecting string vibration information, the use of the vibrating wire collection and reading module is of great significance to improving the accuracy and stability of data collection.