What is a Fully Electronic Truck Scale?
3 Answers
Electronic truck scales utilize the strain gauge measurement principle for weighing. Strain gauges are attached to the elastic body of the load cell to form a Wheatstone bridge. When unloaded, the bridge remains balanced with zero output. When the elastic body bears a load, each strain gauge generates strain proportional to the load, allowing the external load to be measured via the output voltage. Below is a relevant introduction: The electronic truck scale mainly consists of components such as the load receptor, weighing display instrument (hereinafter referred to as the instrument), load cell (hereinafter referred to as the sensor), connecting parts, limit devices, and junction boxes. It can also be equipped with optional external devices such as a printer, large display screen, computer, weighing management software, and voltage stabilizer. Connecting the scale to a computer to print weight tickets is currently a new management method. The weighing management system consists of a computer, printer, instrument, and scale software. The vehicle is weighed twice on the scale, with the gross weight minus the tare weight to obtain the net weight, which is then printed on the weight ticket.
A fully electronic truck scale is essentially a device that uses electronic components to weigh vehicles, with no complex mechanical parts involved. Having worked in this field for over a decade, I've found its core mechanism relies on sensors detecting weight and transmitting signals to a computer for processing, which then displays the weight reading. Unlike old-fashioned mechanical scales that use springs, it automatically calculates errors and achieves precision down to a few kilograms. The advantages are speed and accuracy – trucks get weighed in seconds, saving time and effort. It's commonly used at toll stations or factory gates to check vehicle weight for overload prevention. Maintenance-wise, corrosion isn't a major concern, but regular sensor calibration is necessary to prevent dust accumulation. From a user experience perspective, fleet owners appreciate it as a one-time investment that saves labor costs long-term. However, moisture-proof design is crucial to avoid rainy-day malfunctions. Overall, it's an intelligent upgrade from traditional weighbridges.
I frequently service truck scales, and the all-electronic version is a purely electronic system without mechanical levers. The core components include load cells, junction boxes, and control instruments. The sensors are embedded under the platform to detect pressure and convert it into electrical signals, which are then processed by electronic boards. In principle, changes in current reflect weight changes, with accuracy up to a few thousandths. Why are they good? They install quickly, take up less space, and have strong anti-interference capabilities. However, common issues include sensor moisture-induced short circuits or loose wiring, requiring a multimeter to check circuit continuity. Users are advised not to overload to prevent burnout. From a maintenance perspective, this design reduces mechanical wear and lowers the frequency of upkeep, though regular cleaning and calibration are standard to ensure accuracy. For logistics site managers, the investment offers high returns and reduces operational costs.
