The elevator is a common carrying facility in modern building construction, which can quickly and conveniently bring the carrier to the designated floor, saving time and effort. With the popularity of elevators in life, people began to pay more attention to the safety and comfort of the ride. Since the elevator is usually accompanied by an acceleration or deceleration process during starting or braking, the rider may feel overweight or lose weight. If the change is too fast in this process, it will cause discomfort to the human body. To solve this problem, an acceleration sensor is needed to control the starting and braking process of the elevator.
The elevator generates an acceleration when it is raised or lowered. If the acceleration is within a certain range, the human body will not have any discomfort. In order to prevent the human body from being uncomfortable due to the excessive acceleration of the process, the acceleration sensor may be used to detect the acceleration or deceleration of the elevator. When the acceleration or deceleration is too fast, the elevator control system can adjust the speed and output power of the traction motor to slow down the acceleration or deceleration process. In addition, the acceleration sensor can also provide a certain degree of safety protection. According to the knowledge of mechanics, we know that the tension experienced by the cable during the acceleration process will increase with the increase of the acceleration. Therefore, the measurement of the acceleration can make the cable of the elevator not carry excessive force due to excessive acceleration. Effectively protect the cable for safe use.
The Murata SCA820-D03 is a uniaxial acceleration sensor based on VTI (acquired by Murata) 3D-MEMS capacitive sensor technology. It consists primarily of a high precision MEMS accelerometer component and a flexible SPI digital interface. The sensor is required for high stability, high reliability and high quality throughout the design, production and testing phases, so the single-axis accelerometer has an extremely stable output over the operating range (including full temperature zone, humidity and mechanical). In a noisy environment). The SCA820-D03 single-axis accelerometer's DFL package is suitable for SMD processes and features a variety of advanced self-testing features.
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