Results 31 to 40 of about 26,639 (252)
Elektrika, 2023 The tool used to carry goods is a trolley. To simplify the process of carrying goods using a trolley, the trolley can be combined with robot technology.
Abdul Azis +2 more
doaj +1 more source
Journal of Fundamental and Applied Sciences, 2015 Ultrasonic waves are used extensively in nondestructive testing both for characterization of material properties, in this paper, we describe a fiber optic sensor suitable for detection of ultrasonic waves. This sensor is based on an extrinsic fiber optic
S. Benhamida, F. Rehouma
doaj +1 more source
Partial discharge pattern recognition in GIS based on EFPI sensor
电力工程技术, 2022 The extrinsic Fabry-Perot interferometer (EFPI) optical fiber ultrasonic sensor can be used for the detection and pattern recognition of the partial discharge ultrasonic signal inside the gas-insulated switchgear (GIS).
HAN Shijie +5 more
doaj +1 more source
Design of ultrasonic liquid level sensor for sealed container
Gong-kuang zidonghua, 2013 In view of problem that existing ultrasonic liquid level detection methods need to open door of container in process of installing, so as to damage the container structure and affect sound wave because of volatile medium, a non-contact ultrasonic liquid ...
LU Gui-rong, NI Peng-hao, CHEN Shu-yue
doaj +1 more source
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2021 Hama burung pipit merupakan musuh petani dan sulit dikendalikan populasinya. Selama ini pengusirannya menggunakan cara mekanis dengan peralatan tertentu dan tenaga manusia.
Ali Khumaidi, Nur Hikmah
doaj +1 more source
Securing Ultrasonic Sensors Against Signal Injection Attacks Based on a Mathematical Model
IEEE Access, 2019 Ultrasonic sensors are used across a variety of industrial areas, as they measure distance simply via calculating the difference of time between transmission and reception of signals. However, recently, attackers have been targeting ultrasonic sensors to
Sunwoo Lee, Wonsuk Choi, Dong Hoon Lee
doaj +1 more source
Degradation of acephate using combined ultrasonic and ozonation method
Water Science and Engineering, 2015 The degradation of acephate in aqueous solutions was investigated with the ultrasonic and ozonation methods, as well as a combination of both. An experimental facility was designed and operation parameters such as the ultrasonic power, temperature, and ...
Bin Wang +8 more
doaj +1 more source
MODELLING OF EXTRINSIC FIBER OPTIC SAGNAC ULTRASOUND INTERFEROMETER USED FOR DISPLACEMENT MEASUREMENTS [PDF]
Journal of Fundamental and Applied Sciences, 2012 Ultrasonic waves are used extensively in nondestructive testing both for characterization of material properties, in this paper, we describe a fiber optic sensor suitable for detection of ultrasonic waves. This sensor is based on an extrinsic fiber optic
S. BENHAMIDA, F. Rehouma
doaj
Towards Human Motion Tracking Enhanced by Semi-Continuous Ultrasonic Time-of-Flight Measurements
Sensors, 2021 Human motion analysis is a valuable tool for assessing disease progression in persons with conditions such as multiple sclerosis or Parkinson’s disease.
Silje Ekroll Jahren +5 more
doaj +1 more source
ULTRASONIC BASED HEADING ESTIMATION FOR AIDING LAND VEHICLE NAVIGATION IN GNSS DENIED ENVIRONMENT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 This paper introduces a novel approach for land vehicles navigation in GNSS denied environment by aiding the Inertial Navigation System (INS) with a very low-cost ultrasonic sensor using Extended Kalman Filter (EKF) to bound its drift during GNSS ...
M. Moussa +3 more
doaj +1 more source