Enhanced Performance Love Wave Magnetic Field Sensors With Temperature Compensation

Yang, Yang; Mishra, Harshad; Mengue, Prince; Hage-Ali, Sami; Petit-Watelot, Sébastien; Lacour, Daniel; Hehn, Michel; M'Jahed, Hamid; Han, Tao; Elmazria, O.

doi:10.1109/jsen.2020.2998826

Cited by 24 publications

(7 citation statements)

References 23 publications

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“…Hydrogen production from solid oxide is still in the research and development stage because the electrolysis process requires high temperature conditions and relatively harsh application conditions. Hydrogen production by solid polymer electrolysis has attracted more and more attention because of its compact structure, small volume, and high adaptability to electrolysis conditions [16].…”

Section: Type Of Electrolyticmentioning

confidence: 99%

Effect of Rotating Magnetic Field on Hydrogen Production from Electrolytic Water

Guo

Kim

2022

Shock and Vibration

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In order to reveal the influence of magnetic field on electrochemical machining, a research method of the influence of rotating magnetic field on hydrogen production from electrolytic water is proposed in this paper. Firstly, taking pure water as electrolyte, this paper selects rigid SPCE water molecular model, constructs the molecular dynamics model under the action of magnetic field, and simulates it. In this paper, the thermodynamics, electric power principle, and electrolytic reaction of hydrogen production from electrolytic water are analyzed, and the working processes of alkaline electrolytic cell, solid oxide electrolytic cell, and solid polymer electrolytic cell are analyzed. Based on solid polymer electrolytic cell, the effects of membrane electrode performance, diffusion layer material, contact electrode plate, electrolytic temperature, and electrolyte types on hydrogen production are analyzed. The experimental results show that the heteroions in the lake electrolyte significantly affect the performance of the membrane electrode, and the number of heteroions in the electrolyte should be controlled during the experiment. The hydrogen production capacity and energy efficiency ratio of the unit are basically not affected by different water flow dispersion. When dilute sulfuric acid electrolyte is selected in the experiment, the concentration should be 0.1%–0.2%; After the proton exchange membrane enters the stable period after the activation period, with the increase of the electrolysis time of tap water, (24 h) the membrane electrode will weaken the catalyst activity and reduce the electrolysis efficiency in the electrolysis process. Furthermore, the correctness of rotating magnetic field on hydrogen production from electrolytic water is verified.

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Section: Type Of Electrolyticmentioning

confidence: 99%

Effect of Rotating Magnetic Field on Hydrogen Production from Electrolytic Water

Guo

Kim

2022

Shock and Vibration

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“…The first sensor explicitly exploiting the high sensitivity of Love waves was presented in 2018 reaching a limit of detection (LOD) of 250 pT/

at a frequency of 10 Hz [ 24 ]. Besides utilizing higher Love modes in the Gigahertz regime [ 25 ] also resonant surface acoustic Love wave magnetic field sensors have been introduced in the last three years [ 26 , 27 , 28 ]. Meanwhile, Love wave delay line sensors reach limits of detection as low as 70 pT/

at a frequency of 10 Hz [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Phase Noise of SAW Delay Line Magnetic Field Sensors

Durdaut

Müller

Kittmann

et al. 2021

Sensors

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Surface acoustic wave (SAW) sensors for the detection of magnetic fields are currently being studied scientifically in many ways, especially since both their sensitivity as well as their detectivity could be significantly improved by the utilization of shear horizontal surface acoustic waves, i.e., Love waves, instead of Rayleigh waves. By now, low-frequency limits of detection (LOD) below 100 pT/Hz can be achieved. However, the LOD can only be further improved by gaining a deep understanding of the existing sensor-intrinsic noise sources and their impact on the sensor’s overall performance. This paper reports on a comprehensive study of the inherent noise of SAW delay line magnetic field sensors. In addition to the noise, however, the sensitivity is of importance, since both quantities are equally important for the LOD. Following the necessary explanations of the electrical and magnetic sensor properties, a further focus is on the losses within the sensor, since these are closely linked to the noise. The considered parameters are in particular the ambient magnetic bias field and the input power of the sensor. Depending on the sensor’s operating point, various noise mechanisms contribute to f0 white phase noise, f−1 flicker phase noise, and f−2 random walk of phase. Flicker phase noise due to magnetic hysteresis losses, i.e. random fluctuations of the magnetization, is usually dominant under typical operating conditions. Noise characteristics are related to the overall magnetic and magnetic domain behavior. Both calculations and measurements show that the LOD cannot be further improved by increasing the sensitivity. Instead, the losses occurring in the magnetic material need to be decreased.

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“…However, the metallic nature of the Co-Fe-B layer makes it a good electrical conductor which generates leakage currents between the IDT fingers through the thin layer of ZnO thus increasing the propagation losses and noise in frequency response of the sensor. [33] The measured S 11 of the SAW resonator deposited Co-Fe-B is shown in Figure 8a. The base line of S 11 signal is around −1.7 dB and the amplitude decrease a lot due to the damping loss and parasitic capacitance after depositing the Co-Fe-B film.…”

Section: Sensor Characterization Under Temperaturesmentioning

confidence: 99%

Wireless Multifunctional Surface Acoustic Wave Sensor for Magnetic Field and Temperature Monitoring

Yang

Mengue

Mishra

et al. 2021

Adv Materials Technologies

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wireless magnetic sensors are designed to detect magnetic anomaly and are used for street installation, traffic control, and detection of the parking space availability. The sensor responds to changes in the earth's magnetic field caused by the presence of a vehicle, generally a metallic structure. Installation would be easier and cost-effective if the sensors are batteryless and could be installed into the asphalt or pavement (i.e., buried), thereby eliminating the risk of degradation and the need for regular maintenance, particularly the change of batteries. Another application example for wireless magnetic sensors concerns remote electric current sensing including transient-state electric currents on overhead power lines. Indeed, the development of smart grids requires the development of reliable and low-cost sensor networks. Monitoring electric currents at present and especially in medium and high voltage power lines is difficult and expensive when installing conventional sensors. [1,2] The indirect measurement of electric currents through the generated magnetic fields is an elegant solution. The sensor must also be insensitive to the temperature of the wire that strongly depends on the electric current flowing.Surface acoustic wave (SAW) devices are key components in communication systems and are widely used as filters, delay lines or resonators. They are still relevant for the development of 5G compatible technologies. [3,4] Because SAW devices are highly sensitive to physical parameters that affect SAW velocities, they also offer promising solutions as sensors in a wide range of applications. [5][6][7][8] SAW sensors have the advantage of being micro, passive, wireless, and even packageless in specific configurations. [9][10][11][12] SAW sensor technology allows simultaneous and independent measurement of temperatures and magnetic fields (i.e., electric current). SAW devices based on ferromagnetic films have been studied for the development of magnetic field and electric current sensors. [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] However, the environment temperature is a factor affecting the performance of SAW sensors. An unavoidable fact is that SAW magnetic field sensors without temperature compensation are sensitive to both magnetic fields and temperatures due to the negative temperature coefficients of ferromagnetic films. [26,29] It leads to a difficulty in discrimination between them or their simultaneous measurement. Therefore, a SAW sensor that measures A one-port surface acoustic wave (SAW) resonator based on Co 40 -Fe 40 -B 20 / SiO 2 /ZnO/quartz multilayer structure and exhibiting a dual mode, Rayleigh and Love wave modes, is investigated to achieve a multifunctional sensor measuring both temperatures and magnetic fields. The Rayleigh wave mode of the resonator is used for temperature measurement with a temperature sensitivity of −37.9 ppm/°C, and the Love wave mode is used for magnetic field measurement. Co 40 -Fe 40 -B 20 is the magnetic sensitive layer, and quartz crysta...

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Enhanced Performance Love Wave Magnetic Field Sensors With Temperature Compensation

Cited by 24 publications

References 23 publications

Effect of Rotating Magnetic Field on Hydrogen Production from Electrolytic Water

Effect of Rotating Magnetic Field on Hydrogen Production from Electrolytic Water

Phase Noise of SAW Delay Line Magnetic Field Sensors

Wireless Multifunctional Surface Acoustic Wave Sensor for Magnetic Field and Temperature Monitoring

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