Panasonic Intellectual Property Management Co., Ltd.

Suzhou Phaserise Technology Co., Ltd.

Beijing Goldwind Smart Energy Technology Co., Ltd.

Bo Cao

Yang Zhao

Feng Tian

Yuping Shen

Xuxiang Zhu

Long Yang

Kun Li

Xiaohui Di

Fubin Gu

A rapid ultrasonic dual-wave calibrated detection method includes: numbering a plurality of high strength bolts; searching, in a database in equipment, a calibrated empirical value Rof initial ratios Rof ultrasonic transverse wave transit time to ultrasonic longitudinal wave transit time for bolts with entirely or partially same specification data, or a calibrated empirical value kof a slope k of variation of a bolt tension with a ratio of transverse wave transit time to longitudinal wave transit time; measuring ratios Rof the ultrasonic transverse wave transit time to the longitudinal wave transit time for the plurality of high strength bolts; acquiring a pretightening axial force value, and using the pretightening axial force value in place of an average value of tensions of the plurality of high strength bolts, calculating calibrated another parameter kor R; and calculating axial forces of the high strength bolts.

Rapid ultrasonic dual-wave calibrated detection method for axial force of high strength bolt

A farming light control system includes: one or more rows of lighting devices provided in a sealed farming environment; and an interface module. One or more lighting devices in each of the one or more rows of lighting devices connect to a first end of the interface module via a communication line. Each of the one or more rows of lighting devices includes the one or more lighting devices. Each of the one or more lighting devices includes a green light emitting diode (LED), a blue LED, and a white LED. A second end of the interface module connects to a control module. The control module connects to the one or more rows of lighting devices via the interface module. Each of the lighting devices has different-color LED particles. The light emission states of the lighting devices are automatically controlled by the control module.

Animals-and-plants-farming light control system

Growing community of inventors

Beijing, China

Bo Cao