1.3A,-2V Tolerant Solenoid Drivers for Pedestrian Protection in Active Hood Lift Systems

Easwaran, Sri Navaneeth; Weigel, Robert

doi:10.1109/iscas.2018.8351529

Cited by 2 publications

(1 citation statement)

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“…Figure 4 shows the control circuit for the actuation. A 1N4003 diode was added in parallel to the solenoid; this flyback diode prevents voltage spike that results from turning off the solenoid from damaging the metal-oxide-semiconductor field-effect transistor (MOSFET), which would, in turn, shorten the life of the overall system [55]. The MOSFET itself acts as an open circuit if the GPIO pin is off, and acts as a closed circuit if the GPIO pin is on, allowing for the control of the current through the solenoid via software.…”

Section: Actuation: Wireless Configurationmentioning

confidence: 99%

Wireless Module for Nondestructive Testing/Structural Health Monitoring Applications Based on Solitary Waves

Misra

Jalali

Dickerson

et al. 2020

Sensors

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In recent years, there has been an increasing interest in the use of highly nonlinear solitary waves (HNSWs) for nondestructive evaluation and structural health monitoring applications. HNSWs are mechanical waves that can form and travel in highly nonlinear systems, such as granular particles in Hertzian contact. The easiest setup consists of a built-in transducer in drypoint contact with the structure or material to be inspected/monitored. The transducer is made of a monoperiodic array of spherical particles that enables the excitation and detection of the solitary waves. The transducer is wired to a data acquisition system that controls the functionality of the transducer and stores the time series for post-processing. In this paper, the design and testing of a wireless unit that enables the remote control of a transducer without the need to connect it to sophisticated test equipment are presented. Comparative tests and analyses between the measurements obtained with the newly designed wireless unit and the conventional wired configuration are provided. The results are corroborated by an analytical model that predicts the dynamic interaction between solitary waves and materials with different modulus. The advantages and limitations of the proposed wireless platform are given along with some suggestions for future developments.

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Section: Actuation: Wireless Configurationmentioning

confidence: 99%