The composition, load-bearing and force transmission parts of electronic car scales: all devices that transmit the weight of objects to the weighing sensor, including the weighing platform, hanging connection unit, safety limit device, etc,
The composition and working principle of a truck scale
1、 The working principle of a truck scale
A heavy object or truck is parked on a weighing platform, and under the action of gravity, the weighing platform transmits gravity to the sensor, causing deformation of the elastic body attached to the sensor. As a result, the strain resistor and bridge on the elastic body strain beam lose balance, and an electrical signal proportional to the weight value is output. The signal is amplified by a linear amplifier and then converted into a digital signal through A/D. The weight signal is processed by the microprocessor in the instrument and directly displayed as the weight number After configuring the printer, the weighing data can be printed. If configuring the computer, the measured data can be directly input into the weighing management system for comprehensive management
2、 Composition of electronic automotive scales
Load bearing and force transmission components: All devices that transmit the weight of an object to a weighing sensor, including weighing platforms, hanging connection units, safety limit devices, ground fixtures, and infrastructure
Weighing sensor: Located between the weighing platform and the foundation, it converts the weight of the object being weighed into a corresponding electrical signal, which is output to the weighing display instrument through a signal cable for weighing testing
Display instrument: used to measure the electrical signal output by the weighing sensor, and after processing the electrical signal, output the data in digital form
Power supply: mainly refers to the bridge excitation power supply provided by the weighing sensor and the power supply for the operation of the instrument circuit
The SCS series electronic truck scale is mainly composed of components such as scale platform, sensors, connectors, limit devices, display instruments, and junction boxes. It can also be equipped with external devices such as printers, large screen displays, computers, and voltage regulators The main function of a limiter is to ensure accurate weighing results with small errors (even in the presence of strong impacts or lateral forces such as hurricanes, it can ensure safe operation of the scale) The limiter is mainly used to prevent the lateral movement and left and right shaking amplitude of the weighing platform
3、 Characteristics and main uses of electronic automotive scales
Compared with traditional mechanical scales and other above ground scales, SCS automotive scales have many significant advantages, such as fast and accurate weighing, high sensitivity, digital display, intuitive and easy to read, stability, strong reliability, and long service life. Especially in dangerous and harsh environments, they can better reflect the role of electronic scales The entire automotive weighing system has stable and reliable high-precision sensors and intelligent instrument displays. The instruments have the advantages of high sensitivity, high resolution, stability and reliability, and are easy to print. If combined with computers and weighing software to form a weighing management system, it can also achieve long-distance transmission of weighing and centralized automation management
The scale system of SCS truck scale has many advantages, such as light weight (platform made of ultra-thin steel structure), easy placement, transportation, installation, commissioning and maintenance, and can be installed in two forms: shallow foundation pit and no foundation pit. The investment cost of foundation construction is low
SCS truck scales are generally used for weighing and calculating bulk cargo vehicles in ports, airports, mines, metallurgy, factories, and enterprises
4、 Model specifications
Electronic car scales are commonly represented by SCS - XXX, where * S represents the above ground scale; C represents the transmission structure - sensor; The second S represents numerical display; The 'XXX' at the end represents the maximum weight For example, SCS-80 stands for an 80 ton electronic truck scale
5、 Introduction to the functions of a truck scale
(1) Display function
Generally, it can display the following contents: gross weight, net weight, tare weight, overload alarm or display. Some weighing instruments can also display the following contents: weighing times, date, time, vehicle number, category, etc
(2) Has processing function
Including: division value, division degree setting, range setting; Printing records, some car scales can also have tare weight memory, net weight classification and accumulation, daily report printing documents, monthly report printing documents, amount calculation, volume calculation and other processing functions according to user requirements
6、 The Development Trend of Modern Electronic Weighing Instruments
Weighing sensors are developing towards high accuracy, high stability, and stronger environmental adaptability. At the same time, they are easy to use and cost-effective The application of microelectronics technology continuously enhances data processing capabilities, improves the reliability of single scales, and forms a distributed weighing centralized data management system. Electronic scales with adaptive self diagnosis and warning functions for imminent faults will also appear