Former Oculus researcher and professor at the University of Illinois at Urbana-Champaign Steve Lavalle revealed on Facebook that he will join Huawei as the chief scientist of VR/AR/MR and be fully responsible for Huawei's research and development in this field. On the evening of December 29, He Gang, president of Huawei's mobile phone product line, confirmed the participation of Steve Lavalle to the journalist. In June of this year, He Gang said in an interview with a journalist that there is a shortage of talents in China's VR/AR. Huawei plans to recruit top-notch technical talents on a global scale. Oculus is a well-known VR device manufacturer and was acquired by Facebook in 2014. Steve Lavalle is a big cattle expert in this field. Public information shows that he started working at Oculus VR in September 2012 and until January 2015 he was a major scientist at Oculus. During this time, he developed the IMU-based head tracking method for core software, and led the team of perceived psychologists to provide a major solution for virtual reality calibration systems and user experience comfort design. He is also a co-developer of the Oculus SDK and has helped Oculus develop two core technologies, including predictive tracking sensing technology that reduces VR device lag, reduces dizziness, and sensor correction technology. Lavalle said that he and Huawei are in agreement on the prospects of VR/AR. They believe that it is necessary to take a holistic view of technology research and development in this field, and must closely integrate hardware, software, human perception and neuroscience. He also mentioned that Huawei has a global business, and China is also a rising VR/AR market. Lavalle also attached a photo of wearing Huawei's work clothes in a statement announcing its participation in Huawei. Huawei terminal CEO Yu Chengdong also confirmed the participation of Lavalle to the media. Yu Chengdong said that he personally interviewed Lavalle, and Huawei hopes to become one of the leading companies in the field of VR/AR. Piezoelectric Discs For Flowmeter Sensor
Piezoelectric ceramic disc
Quick delivery
High performance
Application: flow meter measurement
There are many kinds of USF used in closed pipeline according to the measuring principle, and the most commonly used are propagation time method and Doppler method. Among them, time difference ultrasonic flowmeter is used to measure fluid flow by the principle that the time difference of sound wave propagating downstream and countercurrent is proportional to the velocity of fluid flow. It is widely used in raw water measurement of rivers, rivers and reservoirs, process flow detection of petrochemical products, water consumption measurement of production process and other fields. According to practical application, time-difference ultrasonic flowmeter can be divided into portable time-difference ultrasonic flowmeter, fixed time-difference ultrasonic flowmeter and time-difference gas ultrasonic flowmeter.
Ultrasonic flow-meters use at least two transducers aligned so that ultrasonic pulses travel across the flow of liquid or gas in a pipe at a known angle to the flow.
Technical data:
Electromechanical coupling coefficient Kp: > 0.62
Dielectric Loss tg δ: <2%
Nominal Piezo discs for ultrasonic flowmeter:
OD14.2*1MHz PZT-51
OD14.6*1MHz PZT-51
OD15*1MHz PSnN-5
OD15*2MHz PSnN-5
OD20*2MHz PSnN-5
OD15*1MHz PZT-51
OD15*2MHz PZT-51
OD20*2MHz PZT-51
Size, Frequency and Electrode on request.
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