Epson XV7011BB Gyroscope Sensor for High Precision Equipment Industry

Jun 13,2024
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Gyroscope sensors include MEMS (Micro Electro Mechanical Systems) gyroscopes and QMEMS gyroscopes. Currently, MEMS is commonly used, so what is a QMEMS gyroscope? QMEMS is a patented technology of Epson. Place the gyroscope and quartz in an AC variable electric field, and when the AC variable electric field matches the natural frequency of quartz, resonance will occur. Using this technology as the core and targeting market demand, Epson has developed a new XV7011BB gyroscope sensor for the high-precision equipment industry.

The output of the gyroscope sensor is angular velocity, which can only be obtained through integration. However, even in a zero input state, the gyroscope sensor is still affected by temperature and other factors. Its output is a combination of white noise and slowly changing random functions. Therefore, due to the excellent temperature stability of quartz crystals, the QMEMS gyroscope sensor combined with MEMS has excellent temperature drift performance, greatly improving the dispersion and achieving stable temperature characteristics of angular velocity output in a stationary state.

The XV7011BB gyroscope sensor supports single axis digital SPI and I2C serial interfaces, providing 16 bit or 24 bit angular velocity output and excellent zero bias stability for temperature. Its working temperature range is -20 ° C to+80 ° C (optional -40 ° C to+85 ° C), with a built-in temperature sensor and an optional digital filter. In addition, the output deviation of the sensor at rest is as low as+1 °/s (typical value 0 LSB), the output temperature deviation is only+1 °/s, and the linearity is+0.5% FS. Unlike the silicon material used in gyroscopes using MEMS technology, XV7011BB uses quartz material. When the product rotates, XV7011BB detects angular velocity by applying Coriolis force to the vibrating element, greatly improving the deviation and achieving stable temperature characteristics of angular velocity output in a stationary state.

The XV7011BB gyroscope plays a crucial role in motion detection of human-machine interfaces. In virtual reality (VR) and augmented reality (AR) devices, gyroscopes can be used to track the movement of the user's head, achieving a more immersive virtual experience; In smartphones and smart bracelets, gyroscopes can be used to recognize user gesture operations, improving the convenience and smoothness of user interaction.

With the development of technology, more and more instruments will have a higher demand for the XV7011BB gyroscope, and the artificial intelligence mentioned in the previous paragraph is a good example. As the XV7011BB with Epson's core patented technology, it is inevitably in a leading position in competition with similar products.