Electronic scales have become an integral part of various industries, providing precise weight measurements in both kilograms (kg) and pounds (lbs, pound). This article delves into the working principles of electronic scales, particularly focusing on electronic crane scales, and offers insights into their components, features, and functionality.
Components and Characteristics of Electronic Crane Scales
Electronic crane scales are composed of three main parts: the sensor, the scale frame, and the weight display controller. The scale frame transfers the weight of the items on the conveyor belt to the weighing sensor, playing a critical role in the accuracy and stability of the electronic crane scale. This stability is crucial as it determines the overall performance of the scale. Additionally, it’s important to avoid overloading the crane scale sensor during use.
Structure and Features of Electronic Crane Scales:
- Dynamic Weighing Performance:
- High stability ensures that the weight measurement is not affected by the swinging of the heavy object.
- Utilizes a 24-bit high-precision AD converter with an internal resolution of 1,000,000, providing high accuracy and stability.
- Operational Temperature:
- Suitable for high-temperature working environments.
- Battery Features:
- Automatic shutdown function at low voltage with low battery warnings.
- Battery voltage display and excellent compatibility, ideal for harsh environments.
- Wireless Remote Control:
- Equipped with a remote control that operates within a 20-meter range, allowing zeroing, querying weight records, and shutting down the crane scale.
- Advanced Filtering Algorithm:
- Uses the latest dynamic filtering algorithm to resist swinging and stabilize quickly.
- Includes functions like single weight management, remote startup, weight locking, and intelligent charging protection.
Working Principle of Electronic Scales
Electronic scales operate based on components such as sensors, amplifying circuits, AD conversion circuits, microcontroller circuits, display circuits, keyboard circuits, communication interface circuits, and regulated power supply circuits. Here’s a breakdown of their working principle:
- Weight Measurement:
- When an object is placed on the scale pan, the pressure is applied to the sensor, causing deformation and changing impedance.
- The excitation voltage changes, outputting a varying analog signal.
- Signal Processing:
- The analog signal is amplified and converted to a digital signal by the AD converter.
- This digital signal is processed by the CPU according to keyboard commands and programmed instructions, displaying the weight on the screen in either kilograms (kg) or pounds (lbs, pound).
Functions and Advantages of Electronic Scales
Modern electronic scales integrate sensor technology, electronic technology, and computer technology to provide fast, accurate, continuous, and automatic weighing. This integration eliminates human errors, making them ideal for legal metrology management and industrial process control.
History of Electronic Scales
The history of weighing scales dates back to 2400-1800 BCE in the Indus Valley (now Pakistan). Early scales in Egypt appeared around 1878 BCE. Leonardo da Vinci significantly improved and invented modern scales. In the 1940s, electronic devices connected to these designs enhanced measurement accuracy, leading to the development of true electronic scales.
Today’s electronic body scales can measure weight accurately to 0.1 kg, offering instant measurements and user-friendly operation, which is why they are widely preferred.
Understanding the working principle of electronic scales, particularly crane scales, helps in appreciating their functionality and reliability. Whether measuring weight in kilograms (kg) or pounds (lbs, pound), these scales are essential tools in various fields, ensuring precision and efficiency. Converting weight between kg to lbs and lbs to kg has never been easier, thanks to the advancements in electronic scale technology.