公开(公告)号：US20210263062A1

公开(公告)日：2021-08-26

申请号：US17253649

申请日：2020-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Zhenhao XU ,  Dongdong PAN ,  Yichi ZHANG ,  Peng LIN ,  Huihui XIE ,  Yuchao DU ,  Zehua BU ,  Xiaote WANG

IPC: G01P5/02 ,  G01P13/04

Abstract: An underwater detector includes a sealed enclosure, inside an infrared sensor module is disposed. The module rotates around a spindle at a fixed angular velocity along a horizontal plane. An electronic compass disposed on the module. A bottom of the sealed enclosure connected to an indicator through a rotary shaft, and the indicator rotates around the rotary shaft on the horizontal plane. The indicator includes a head and tail fin. A light source emits a light beam vertically upwards on the tail fin. The module is configured to trigger, when receiving the light beam, the electronic compass records a real-time direction relative to the spindle, which is processed by a processor module to obtain a direction of the water flow. A spring connects between the head and tail fin. The infrared sensor module transmits a moment of receiving the light beam to the processor module to calculate the water flow.

公开(公告)号：US20220334035A1

公开(公告)日：2022-10-20

申请号：US17640915

申请日：2020-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Peng LIN ,  Heng SHI ,  Zhenhao XU ,  Youbo LIU ,  Tengfei YU ,  Zehua BU ,  Xiaote WANG

IPC: G01N3/08 ,  G01N29/07 ,  G01N3/42

Abstract: A predicting system and method for the uniaxial compressive strength of rock include a point loading strength test module, a longitudinal wave velocity test module, a rock rebound value test module and a strength prediction module, wherein the longitudinal wave velocity test module performs longitudinal wave velocity tests on the rock, and transfers the longitudinal wave velocity of the rock to the strength prediction module; the rock rebound test module performs rebound test on the rock, and transfers the rebound value of the rock to the strength prediction module; the point loading strength test module performs image acquisition on a fracture surface of the rock after being loaded and fractured by the point loading test, and calculates the area of the fracture surface; and the strength prediction module outputs a uniaxial compressive strength prediction result of the rock according to the received information and a preset prediction model.