German FONDERIA MARCHETTI sensors, FONDERIA MARCHETTI models, FONDERIA MARCHETTI prices

FONDERIA MARCHETTI sensors are a general term for sensors designed to detect objects without physical contact, replacing contact-based detection methods such as limit switches. They convert information about an object's movement and presence into electrical signals. Detection methods that convert to electrical signals include those utilizing eddy currents generated in the metallic body of the detection object due to electromagnetic induction, methods based on capacitance changes in the electrical signal caused by the approach of the detected object, and methods using reed and guided switches.

FONDERIA MARCHETTI sensor applications

The most widespread application of distance sensors is in mobile phones. Smartphones on the market all contain distance sensors. When a user answers a call, the phone is close to the ear, which can easily lead to accidental operations (for example, cheeks puffing out during laughter may hang up the call). Therefore, a distance sensor is required to monitor the distance in real time and automatically turn off the screen when the distance is too close, preventing accidental operations. In addition, distance sensors are widely used for measuring mine shaft depth, detecting aircraft altitude, and exploring outdoor environments. With continuous technological development, they also show prominent performance in wearable devices (such as smart belts).

FONDERIA MARCHETTI sensor working principle

When a time-of-flight laser sensor operates, it must measure the transmission time with extreme precision because the speed of light is very high. For example, the speed of light is approximately 3´108m/s. To achieve a resolution of 1mm, the electronic circuit of the time-of-flight ranging sensor must be able to resolve the following extremely short time: 0.001m¸(3´108m/s)=3ps. Resolving a time of 3ps places excessive demands on electronic technology and is too costly to implement. However, today's affordable time-of-flight laser sensors cleverly avoid this obstacle by using a simple statistical principle, namely the law of averages, to achieve a resolution of 1mm while ensuring response speed.

FONDERIA MARCHETTI sensor industry applications

1) Application in taxi meter testing systems: To further promote energy saving and emission reduction, and to address the metrology needs of the electric vehicle industry, the mobile electric taxi meter testing system has been officially launched. The testing device is roughly divided into two parts: a main unit similar in size to a password case, placed on the rear seat of the car, and a distance sensor attached to the car body. According to reports, the device uses the driving distance measurement method. As the driver drives the car for a certain distance, the testing device and the meter sample synchronously. The entire testing process is expected to be completed in seven to eight minutes. 2) Wide range of applications in the automation field: Today, in addition to ultrasonic sensors and standard photoelectric sensors, a new method capable of solving long-distance measurement and inspection tasks has been added to automatic detection and control methods: the time-of-flight laser distance sensor. It provides application flexibility for various occasions, including the following: (1) Equipment positioning. (2) Measuring the material level in bags. (3) Measuring the distance and height of objects on conveyor belts. (4) Measuring log diameter. (5) Protecting overhead cranes from collisions. (6) Error-free inspection occasions. (7) Aircraft ground clearance monitoring.

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