条码扫描仪用微型微动开关
微型微动开关应用于条码扫描枪及日常生活生产. 例如, they are widely used in home appliance control and industrial control, such as telephones, 空调, 电脑, 警报, welding guns, 欢迎来电咨询！.
Today we will mainly introduce the barcode scanner on the application. It is estimated that many people are not very familiar with barcodes, but they are widespread in life.
Barcodes appeared in the early 1950s and later developed into a complete set of item identification systems and are widely used in various industries such as commerce, postal services, book management, and storage.
Types of barcode scanner
- Platform type barcode scanner
- Hand-held barcode scanner
When you are making a payment in the supermarket, you can see the cashier use the barcode scanner to scan the product’s barcode or the QR code of the mobile phone.
The principle of barcode scanner
It uses photoelectric elements to convert the detected light into electrical signals. It then converts the electrical signal into a digital signal through an analog-digital converter and transmits it to the computer for processing. 例如, when scanning an image, the light source shines, and the reflected light passes through the lens to converge on the scanning module.
The scanning module converts the light signal into an analog-digital signal (IE。, voltage related to the received light intensity). 相关), and simultaneously point out the degree of darkness of the image number.
Classification of barcode scanner
The principle of light emission, can be divided into two categories:
- Infrared/laser (IE。, 激光)
- Short-distance/long-distance/offline according to the reading distance
- Fixed and hand-held and wireless scanning transmission
Barcode scanner interface mode
USB interface mode, keyboard interface mode, serial port mode USB interface mode: The data obtained by scanning the barcode is directly input to the computer through the keyboard interface. The advantage of this method is that no driver is required, the operating system is independent, and it can be used directly on various operating systems without an external power supply.
The keyboard interface is the same as the USB interface.
Serial port mode: The data obtained by scanning the barcode is input through the serial port. The serial port data needs to be directly driven or read and powered by an external power supply.
The structure of the barcode scanner
The barcode scanner mainly includes:
- The upper shell.
- The motherboard.
- The Ethernet interface cable.
- The gun body.
- The front cover.
- The buttons.
- The bottom buckle.
他们之中, the functions are integrated on a motherboard with high integration. 当动作簧片位移达到临界点时, the fuselage handle is marked with stripes, which increases the slip resistance, and the user better protects the barcode scanner during use. One of the essential parts of the barcode scanner is the microswitch.
为此原因, we will share the miniature micro switch on the barcode scanner. This G605 series miniature micro switch has a standard straight handle, PCB terminals on the right side, spring structure, and silver contacts up to 5A 125VAC load. It is characterized by small size, 结构紧凑, 长寿, 高可靠性, strong sensitivity, and UL, ENEC, 和CQC认证.
A G605 miniature micro switch is used on a scanning gun.
The micro switch is welded on the PCB board and installed in the plastic protective cover. It forms a linkage with the external button of the scanning gun. After an external force triggers the microswitch, a signal is given to start the scanning gun and scan the barcode information—feedback to the computer.
惠州市优力纬尔微控 & 控制电子有限公司
惠州市优力纬尔微控 & 控制电子有限公司, a large-scale electronic component manufacturing service provider in China, 已在行业内率先通过国家高新技术企业认证.
专业业务范围包括精密微动开关, 汽车开关, waterproof micro switch （air press switch and mechanical keyboard switch）, 欢迎来电咨询！. 各种产品’ 设计, 制造业, 销售量, 与服务一体化，完成中高端市场供应.
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https://www.unionwellswitch.com/
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