Product principleMEMS gas mass flowmeter uses a MEMS chip with independent intellectual property rights as the core component of the sensor. When no gas medium flows through the sensor chip, a stable temperature field (temperature distribution) is maintained around the sensor. When the gas medium flows through the sensor chip, the temperature field is redistributed locally because the fluid medium takes away heat. The variation of the local temperature field depends on the mass and velocity of the fluid medium.
On the road of automobile intelligence, Lidar is like a pair of sharp eyes, which gives a real-time three-dimensional vision for automatic driving with high-precision information acquisition and processing. How it worksIt is not simple, but is constructed by four key links: transmission, reception, scanning and information processing.
A large number of sensors on a spacecraft are needed to constantly send temperature, position, speed and attitude data to processors on the ground or on board, and even a large computer is difficult to process such a large amount of data at the same time. Moreover, the spacecraft limits the size and weight of the computer, so it is hoped that the sensor itself has information processing functions, so the sensor is combined with the microprocessor, and there is a smart sensor.MEMS MEMS stands for Micro-Electromechanical System. MEMS mainIncluding micro-mechanism, micro-sensor, micro-actuator and corresponding processing circuit and other parts, it is a high-tech frontier subject developed on the basis of integrating a variety of micro-machining technology and applying the latest achievements of modern information technology.
kx023 is an acceleration sensor chip, and the acceleration sensor is a sensor that can measure the acceleration domestic acceleration sensor chip . Usually consists of mass blocks, dampers, elastic elements, and sensitivitiesComponents and adaptive circuit, etc. In the process of acceleration, the sensor obtains the acceleration value by measuring the inertia force of the mass block and using Newton's second law.
Become the ideal substitute for many brands such as Minxin Micro MSA30 new MXC series, Minghao DA series, KX023 series, etc. This digital three-axis acceleration sensor stands out for its high accuracy/and low power consumption, and its compact size ensures accurate measurements on devices such as mobile phones, tablets, wristbands, motion-sensing remote controls and even navigators.
Example: ECG AFE sensor: GH32 optical teletypeSensor: OSram PD SFH220G-sensor Sensor: ROM KX023-1057, etc. Many highly sensitive sensors are supplemented by 6 intelligent monitoring algorithms developed by dido in 8 years, and the numerical accuracy is guaranteed. The 200mAh polymer battery can bring about 15 days of standby time, the normal use time is about 5-7 days, of course, the final battery life depends on personal use habits.
The KX driver can support innovative built-in 1 or 1 sound cards. Some older models of 1 sound cards are also supported. It is mainly a sound card with a 10K10K2 sound chip.p>
Most of the current three-axis acceleration sensors are piezoresistive, piezoelectric and capacitiveAs a principle, the resulting acceleration is proportional to the change in resistance, voltage and capacitance, and is collected through the corresponding amplification and filtering circuits. This and the ordinary acceleration sensor is based on the same principle, so in a certain technology three single axis can be turned into a three axis. For most sensor applications, the two-axis acceleration sensor has been able to meet most applications.
Three-axis acceleration sensor: principle Most of the current three-axis acceleration sensors use piezoresistive, piezoelectric and capacitive working principles, the generated acceleration is proportional to the change of resistance, voltage and capacitance, and is collected by the corresponding amplification and filtering circuit. This is based on the same principle as a normal acceleration sensor, so technically, three single axes can become a three axis.
The working principle of the acceleration sensor is that a medium is deformed due to acceleration, and its deformation is measured and converted into a voltage output by the relevant circuit. An acceleration sensor is a sensor that measures acceleration. It is usually composed of mass block, damper, elastic element, sensitive element and adaptive circuit.
Acceleration sensor is a device that can measure the acceleration of an object, and its working principle depends on the acceleration causing a certain medium to take shapeChange, and then output by measuring the degree of deformation and converting it into a voltage signal through a specific circuit. The sensor is generally composed of a mass block, a damper, an elastic element, a sensitive element and an adaptive circuit.
MMA7260, Freescale, sensitivity 6g (200mV/g), 4g (300mV/g), 2g (600mV/g), 5g (800mV/g) adjustable, the mostCommonly used 3-axis accelerometer. The noise is terrible. Use with caution. 20RMB a piece of ADXL335, AD, sensitivity 3g (300mV/g), but the noise is very small, 12-bit sampling noise is plus or minus 1LSB. Also about 20RMB one of the above two accelerometers I have used.
G-sensor (Gravity sensor), also known as accelerometer, is a MEMS sensor that can sense acceleration. As shown in the figure, a mass block endsIt is secured by a spring. In the absence of acceleration, the spring does not deform and the mass is at rest. When acceleration occurs, the spring deforms and the position of the mass block changes. For example, silicon microphones, the acoustic sensors integrated into AirPods Pro and smartphones, have a precision structure made up of MEMS chips, ASIC chips and metal housings that convert sound pressure into electrical signals, demonstrating the power of microelectronics. Precise measurement: Pressure and acceleration sensors Pressure sensors, whether capacitive or resistive, play a key role in the accurate measurement of atmospheric pressureThe key action provides a reliable guarantee for three-dimensional positioning. The 3399 and 3395 sensors are manufactured by Infineon, an American information technology company, and both use MEMS technology. 3399 sensor launched earlier, is an acceleration sensor, mainly used in the Internet of things, military, robotics and other fields. The 3395 sensor is a pressure sensor that is widely used in automotive manufacturing and other fields.
Automotive MEMS pressure sensor and tire pressure automatic monitoring system, MEMS pressure sensor suitable for any type of tire, inA small pressure-sensitive chip embedded in the tire wall automatically measures the tire's air pressure, temperature, speed and other data, and sends it out with a specific code. Honeywell's piezoresistive pressure sensor, the HSC Honeywell, provides a digital output for reading pressure in specified full-scale pressure ranges and temperature ranges.
Mobile devices: MEMS chips play an important role in mobile devices. Accelerometers and gyroscopes are among the most common MEMS sensors, and they are used to detect changes in the acceleration and direction of devices, enabling functions such as automatic screen rotation, gesture recognition, and game controlI can. In addition, MEMS microphones are also used to achieve noise suppression and speech recognition. Automotive: MEMS chips have a variety of applications in automobiles.