Peking University

Shanghai Zhenhua Heavy Industries Company Limited

No. 2 Engineering Co. of Cccc First Harbor Engineering Co., Ltd.

No.2 Engineering Company Ltd. of Cccc First Harbor Engineering Company Ltd

Bo Meng

Haixia Zhang

Wei Tang

Wei Xu

Jianjun Zhang

Ling Zhu

Ming Lin

Xiaoliang Cheng

Bin Xie

Haotian Chen

Hong Xiang

Zengjun Li

Mengdi Han

Zhenjie Tao

Xuejun Wang

Gang Yin

Linlin Yuan

Faqiang Su

Dejin Liu

Jinbao Liu

Xiangwei Zhang

Mayue Shi

Xiangrong Zhou

Mingxiang Wang

Jinxin Zhang

Hongbo Wei

Chunfeng Zhu

Ziyang Bi

Zongming Su

Jiangwei Song

A single-surface position sensor and a positioning method thereof are disclosed. The single-surface position sensor comprises a substrate layer () and induction electrodes (); the induction electrodes () are located on the substrate layer (); the sensor further comprises a friction layer (); the friction layer () is located on the substrate layer (); the friction layer () is located among the induction electrodes (); the individual induction electrodes () are grounded through the same load resistors, so that an object under test contacts with and is separated from the friction layer () at least one time and different voltage outputs are generated across the various load resistors; a position of the object under test is determined by analyzing a ratio of the voltages of all the electrodes (); the single-surface position sensor is an active sensor and reduce energy consumption as compared with traditional sensors; the single-surface position sensor can be manufactured into a flexible transparent thin film and can be widely applied to portable electronic devices and wearable devices; and the single-surface position sensor is simple in process and low in cost.

Single-surface position sensor and positioning method thereof

The present application discloses a dredging system for a pre-paved gravel foundation bed surface in open sea deep water, including a dredging mechanism, which includes a dredging suction head, a power component and a dredging pipeline, wherein the dredging suction head is connected with the dredging pipeline; the dredging pipeline is communicated with the power component; the dredging suction head includes at least one ridge surface suction port and at least one furrow suction port; the openings of all the furrow suction ports are lower than those of all the ridge surface suction ports; a lifting mechanism, which is connected with the dredging suction head and is used for lifting the dredging suction head to the gravel foundation bed surface; a moving mechanism, which is connected with the lifting mechanism and is used for driving the dredging suction head to move within a dredging range of the gravel foundation bed surface. By the adoption of the dredging system for the pre-paved gravel foundation bed surface in the open sea deep water of the present application, the dredging suction head includes the ridge surface suction ports and the furrow suction ports, and may suck mud on the top surfaces of gravel ridges and the mud in furrows between two gravel ridges at the same time, thereby guaranteeing the dredging quality of the gravel foundation bed surface and improving the working efficiency. The dredging system is simple in structure, convenient to use and good in dredging effect.

Dredging system and dredger for pre-paved gravel foundation bed surface in open sea deepwater

A single friction surface microgenerator and a method of manufacturing the same are described. The microgenerator comprises an insulating substrate with a surface-friction-structured layer on its upper surface and a first induction electrode and a second induction electrode on its lower surface. The first induction electrode is located to correspond to the surface-friction-structured layer that is used as a friction surface while the second induction electrode is located periphery of the first induction electrode and insulatedly spaced from the first induction electrode. The single friction surface microgenerator according to the present disclosure has a wide usage and the method of manufacturing the same may be performed through a simply and high-effective production process, processed at low cost, and may achieve high yield.

Single friction surface triboelectric microgenerator and method of manufacturing the same

The disclosure discloses a vibration generator and a stacked-structure generator. The vibration generator includes an arched friction unitand an arched friction unit. An concave inner surface of the arched friction unitand an concave inner surface of the arched friction unitare located opposite to each other as friction surfaces; and, the arched friction unitsandare provided with electrodes at convex outer surfaces thereof, which are concurrently served as supporting layers. The stacked-structure generator includes a plurality of the vibration generators, and several sets of a first geometrically complementary-shaped friction unit, which matches the electrode of the vibration generator that is concurrently served as the supporting layer, and a second geometrically complementary-shaped friction unit. The first geometrically complementary-shaped friction unit and the electrode concurrently served as the supporting layer that is coupled thereto and the second geometrically complementary-shaped friction unit and the electrode concurrently served as the supporting layer that is coupled thereto are attached to form a vibration generator that is complementary to the vibration generator. The present disclosure greatly increases output voltage of the generator and effectively increases collection and usage of environment energy.

Vibration generator and stacked-structure generator

The present invention discloses a folding vibration microgenerator and a method of manufacturing the same. The microgenerator comprises a foldable sandwiched substrate, wherein the foldable substrate comprising two flexible insulating substrates and an induction electrode located between the two flexible insulating substrates, in which the induction electrode is constructed by two complementary comb-shaped electrodes. The foldable substrate has upper and lower surfaces, on which the first friction structure units and the second friction structure units are respectively periodically distributed, and the first friction structure units corresponds to the odd-numbered comb teeth of the induction electrode and the second friction structure units corresponds to the even-numbered comb teeth of the induction electrode. The foldable substrate is folding at gaps between two adjacent comb teeth of the induction electrode as a serrate shape, thereby forming a folding vibration microgenerator. The microgenerator is easy to be produced and largely increases output power per unit area. Due to inflexibility of the folding structure itself, the energy conversion efficiency of the microgenerator is effectively increased while output power being maintained.

Foldable miniature vibration generator and manufacturing method thereof

Growing community of inventors

Beijing, China

Bo Meng