Results 241 to 250 of about 68,824 (293)

Fibrous inductance strain sensors for passive inductance textile sensing

Materials Today Physics, 2020
Abstract Stretchable strain-sensitive textiles that can detect human motion and physiological information in real time have considerable potential for application in next-generation wearable electronic devices. However, the application of such textiles has been hindered largely by their vulnerability to magnetic and electrical interference, wear and ...
R. Wu, L. Ma, S. Liu, A.B. Patil, C. Hou, Y. Zhang, W. Zhang, R. Yu, W. Yu, W. Guo, X.Y. Liu   +10 more
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Inductive verses capacitive sensors

World Pumps, 2013
Both capacitive and inductive position sensors use a non-contact technique to measure position; both use AC electrical phenomena and both can be built using printed circuit boards. This article looks at the fundamental physics behind each technique and outlines the consequent strengths and weaknesses of each approach.
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Static induction transistor image sensors

IEEE Transactions on Electron Devices, 1979
New image sensors, based on the operational principle of static induction transistor (SIT), are described in this paper. Two operational modes of SIT image sensors are described here. One is the electron-accumulation mode in which electrons are stored in the floating-cell region and another is the electron-depletion mode in which electrons are removed ...
J. Nishizawa, T. Tamamushi, T. Ohmi
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Online Inductance Estimation of Speed Sensor less Induction Motor Drives

2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2020
Induction motor (IM) drives with field-oriented control scheme are widely used in the industry. Motor drives with speed sensors (encoders) decreases the reliability and robustness of the system in hostile environments. This increases the demand for speed sensorless motor drive schemes.
Harshith Reddy V, R. Sudharshan Kaarthik, P P Rajeevan   +2 more
openaire   +1 more source

High-Sensitivity Inductive Pressure Sensor

IEEE Transactions on Instrumentation and Measurement, 2011
A new type of pressure sensors with extremely high sensitivity is introduced. Unlike piezoresistive, capacitive, and linear-variable-differential-transformer-based pressure sensors, the new sensor is based on a technique for substantially changing the inductance of a coil. The prototype device has demonstrated a change in inductance of approximately 34.
Ezzat G. Bakhoum, Marvin H. M. Cheng
openaire   +1 more source

Induction coil sensors—a review

Measurement Science and Technology, 2007
This review describes induction coil sensors, which are also known as search coils, pickup coils or magnetic loop sensors. The design methods for coils with air and ferromagnetic cores are compared and summarized. The frequency properties of coil sensors are analysed and various methods for output signal processing are presented.
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PT-Symmetric Inductive Displacement Sensors

2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), 2018
We propose a new type of wireless displacement sensor based on the concept of parity-time (PT)-symmetry. The PT-symmetric wireless sensor consists of a -RLC tank (reader) and a RLC (tag) tank, which are inductively coupled to fulfill the PT-symmetry condition.
Mehdi Hajizadegan, Maryam Sakhdari, Pai-Yen Chen   +2 more
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Inductive powering of sensor modules

Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005., 2005
An inductively powered system, aimed at providing wireless power to sensor modules, has been built and tested. The goal of the work is to determine the limits in terms of distances, and power transferable, using a 13.56 MHz system. Powering distances of up to 10 cm were obtained for power levels up to 1 mW.
T. O'Donnell, O. Chevalerais, G. Grant, S.C. O'Mathuna, D. Power, N. O'Donnovan   +5 more
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Flow sensor fault during induction

Canadian Journal of Anesthesia/Journal canadien d'anesthésie, 2021
Yuki Kojima, Shusei Yoshimine, Mitsutaka Sugimura   +2 more
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Force measurement using an inductively coupled sensor

Review of Scientific Instruments, 1978
A low-compliance, high-bandwidth force sensor is described. The bending of a quartz plate is converted to an analog voltage by using a phase-locked loop to measure the change in frequency of two oscillators inductively coupled to the plate. The resolution of the sensor is approximately 10−5 N, with a bandwidth of approximately 1 kHz.
H A, Ashworth, J R, Milch
openaire   +2 more sources