In his essay *Chibi Fu*, Su Shi once said, "The river breeze and the bright moon between the mountains—what is heard by the ear and seen by the eye is a moment of beauty." This poetic reflection highlights how our senses, particularly sight and hearing, are essential tools for experiencing the world. Similarly, in product development and manufacturing, the "eyes" and "ears" of the system—such as sensors and monitoring devices—are crucial for ensuring performance and quality.
In daily life, we perceive environmental factors like temperature, humidity, brightness, and color both emotionally and quantitatively. With the help of appropriate tools, these sensory inputs can be measured and analyzed, which is essentially the process of signal sampling. Real-world signals are continuous and ever-changing, often represented as analog waveforms that fluctuate over time.
To better capture or record such dynamic signals, we often convert them into digital form. For instance, temperature is commonly expressed in degrees Celsius, while color is defined using the RGB color model. These methods allow us to translate real-world analog signals into quantifiable data. This transformation from analog to digital is known as analog-to-digital conversion (ADC), a fundamental step in many electronic systems.
There are various techniques for ADC. In electrical engineering, ADC circuits are used to sample signals. The basic principle involves capturing the signal through a sample-and-hold circuit, then converting it using an ADC chip. The more bits the ADC has, the higher the resolution and the faster the sampling rate, resulting in a more accurate representation of the original signal. The figure below illustrates this process.
ADC plays a critical role in most electronic measuring instruments, such as oscilloscopes, multimeters, power analyzers, and data acquisition recorders. Each device has different requirements for accuracy, speed, and the number of channels. For example, an oscilloscope demands a very high sampling rate to accurately reconstruct waveforms, while a multimeter focuses on precision. Data acquisition recorders, on the other hand, often require multiple input channels to collect various types of signals simultaneously.
Data acquisition recorders are widely used to measure and record parameters like temperature, humidity, voltage, current, and alarm signals. Different signals require different sampling approaches. For DC voltage and current, direct measurement is possible. However, for temperature, a sensor like a thermocouple or resistance temperature detector (RTD) must first convert the temperature into an electrical signal before it can be measured. Once collected, the data is processed to display temperature readings.
Many applications demand simultaneous acquisition of multiple signals, which requires data acquisition recorders with multiple channels and expandable capabilities. ZLG Zhiyuan Electronics' DM100/DP100 series is a high-precision, multi-channel data acquisition system designed for industrial environments. It supports the collection of DC voltage, DC current, digital signals, temperature, and humidity. The system provides real-time display of measurements and allows users to perform custom calculations, such as linear operations, square root functions, or user-defined expressions. Results can be stored in memory, with support for up to 8GB of storage capacity, enabling continuous data recording for over 60 days. Additionally, it can generate reports based on selected channels and export data in text or binary format for further analysis.
After collecting the signals, the DM100 module enables users to process the data using mathematical operations and store the results for future reference. This makes it an ideal solution for complex industrial monitoring and testing scenarios.
Coin Battery Holder
coin battery holder,cr2032 battery holder,cr2032 holder,cr2032 socket,cr2450 battery holder,cr2450 holder,2450 battery holder
Dongguan Yiyou Electronic Technology Co., Ltd. , https://www.dsubminiature.com