Germany BLUE CHIPS SRL sensor BLUE CHIPS SRL model BLUE CHIPS SRL price

BLUE CHIPS SRL sensors are components that convert changes in non-electrical quantities (such as speed and pressure) into changes in electrical quantities. Depending on the non-electrical quantity converted, they can be classified as pressure sensors, speed sensors, temperature sensors, etc., and serve as parts and accessories for measurement, control instruments, and equipment.

BLUE CHIPS SRL sensor classification

Lasers can be divided into 4 types based on the working medium. (1) Solid-state lasers: The working medium is solid. Common types include ruby lasers, neodymium-doped yttrium aluminum garnet lasers (i.e., YAG lasers), and neodymium glass lasers. Their structures are roughly similar, characterized by compactness, robustness, and high power. Neodymium glass lasers are devices with the highest pulsed output power, reaching tens of megawatts. (2) Gas lasers: The working medium is gas. Various gas atomic, ion, metal vapor, and gas molecular lasers are now available. Common types include carbon dioxide lasers, helium-neon lasers, and carbon monoxide lasers. Shaped like ordinary discharge tubes, they feature stable output, good monochromaticity, and long service life, but have lower power and conversion efficiency. (3) Liquid lasers: These can be further divided into chelate lasers, inorganic liquid lasers, and organic dye lasers, with organic dye lasers being the most important. Their main feature is continuously tunable wavelength. (4) Semiconductor lasers: A relatively newer type of laser, with gallium arsenide lasers being the more mature variant. Features include high efficiency, small size, light weight, and simple structure, making them suitable for carriage on aircraft, warships, tanks, and by infantry. They can be made into rangefinders and sights. However, they have lower output power, poorer directionality, and are significantly affected by ambient temperature.

BLUE CHIPS SRL sensor principle

When a laser sensor operates, the laser emitting diode first emits laser pulses toward the target. After reflection from the target, the laser scatters in various directions. Part of the scattered light returns to the sensor receiver, where it is received by the optical system and imaged onto an avalanche photodiode. An avalanche photodiode is an optical sensor with internal amplification capability, enabling it to detect extremely weak light signals and convert them into corresponding electrical signals. Commonly used are laser distance sensors, which determine the target distance by recording and processing the time elapsed from the emission of the light pulse to its reception. Laser sensors must measure transmission time with extreme precision due to the high speed of light.

BLUE CHIPS SRL sensor applications

Over-width and over-height vehicle detection: Laser sensors are used for rapid measurement. An PC industrial PC and the network kernel of visualization programming software VB are utilized for real-time data transmission and processing with the sensors. User-friendly upper-computer control software has also been designed. Field test data indicate that the system offers good real-time performance and high measurement accuracy, demonstrating practical value. Highway toll stations: Used at highway toll stations for vehicle counting and safety protection. Malaysia's Teras company has already deployed hundreds of BEA laser sensors in its manual and automatic toll collection systems. The laser sensors employ the Time-of-Flight (TOF) measurement principle, forming 4 planes within the detection zone to monitor vehicles. Additionally, the product features anti-rear-end collision and vehicle safety protection functions. Compared to traditional light curtains, laser sensors offer advantages such as high sensitivity, high accuracy, easy installation, cost-effectiveness, and strong stability. Google's second-generation driverless car: Equipped with laser sensors. In Google's second-generation autonomous vehicle prototype, while the top-mounted laser sensor remains quite prominent, other sensors are configured to be very discreet. Distinctive Google driverless car logos are affixed to the front, rear, and sides of the vehicle. The control and driving principle of the Google driverless car involves numerous sensors installed around the vehicle continuously collecting precise data about the vehicle itself and its surroundings. This data is analyzed and computed by the onboard processor, which then controls the vehicle's movement based on the results. The driverless car utilizes GPS devices and sensors to accurately determine the vehicle's position and forward speed, identifying surrounding pedestrians, vehicles, bicycles, traffic lights, and many other objects. The roof of this Lexus vehicle features a 360° rotating laser holographic sensor, capable of almost simultaneously sensing conditions in front of, beside, and behind the vehicle. Data collected by the sensor is transmitted via green data cables to the processor located at the rear right side of the vehicle. This laser sensor also enables global precise positioning for the driverless car. The original L emblem on the front of the Lexus has been removed and replaced with a radar sensor, used to measure forward distance and vehicle speed to assess traffic conditions ahead and control safe acceleration and deceleration. Position sensors are also installed on the tire hubs to detect wheel rotation, aiding in vehicle localization. The heart of the Google driverless car—the processor—is located at the rear right side of the vehicle. Data information from all sensors is transmitted here via data cables for software-based analysis and processing, enabling precise sensing and judgment of different objects near the driverless car. In addition to analyzing and judging the current positions of objects around the driverless car, the vehicle requires software calculations to accurately predict the potential next position of each object. Finally, the driverless car makes safe driving decisions based on all collected data, including controlling vehicle speed and maintaining distance from surrounding vehicles.

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