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Laser technology has revolutionized the sensor manufacturing industry, offering advanced solutions that traditional methods could not match. According to the national standard GB7665-87, a sensor is defined as a device capable of detecting and converting physical or chemical information into an available output signal according to a specific law. As a critical testing tool, sensors must operate in harsh environments while maintaining high stability and reliability. This demands precise and stable processing techniques, which traditional methods struggle to achieve, leading to challenges within the sensor industry.
Now, laser technology has emerged as a game-changer. It provides efficient and accurate solutions for marking, welding, and trimming sensors. Laser marking, for instance, uses a high-energy continuous laser beam generated by a laser source. When this beam interacts with the material's surface, it excites atoms from their ground state to a higher energy level. These excited atoms quickly return to their original state, releasing excess energy in the form of photons or quanta. This energy is then converted into heat, causing the material to melt or vaporize, resulting in a permanent and highly visible mark. Laser marking offers high precision, low cost, and excellent traceability, making it ideal for industrial applications.
Laser welding, on the other hand, utilizes a pulsed laser at a wavelength of 1064nm. After being expanded, reflected, and focused, the laser beam heats the workpiece’s surface through conduction. Digital control allows precise adjustment of pulse width, energy, peak power, and repetition frequency, ensuring accurate melting and forming a strong weld. This method is particularly effective for sealing sensor casings, offering advantages such as minimal heat-affected zones, strong joints, and cost-effective production.
In addition, laser trimming enables precise modification of resistive materials. A computer controls the laser’s movement, directing high-energy pulses onto the resistor. The material absorbs the light energy, rapidly heating and vaporizing to create a circular spot. Multiple overlapping pulses can form slits, allowing the resistance value to be adjusted precisely. This process is fast, repeatable, and easily automated, making it a preferred choice in modern sensor manufacturing.
Overall, laser technology brings significant improvements to sensor processing, enhancing performance, reliability, and efficiency in the industry.
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all the candle made of high quality of Candle Wax ,then that ensure quality during the prayer, to show the devout heart and get the best wishes !
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