Temperature compensation of ball surface acoustic wave sensor by two-frequency measurement using undersampling

Tsuji, Toshihiro; Oizumi, Toru; Takeda, Nobuo; Akao, Shingo; Tsukahara, Yusuke; Yamanaka, Kazushi

doi:10.7567/jjap.54.07hd13

Cited by 12 publications

(13 citation statements)

References 36 publications

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“…Force sensors [279][280][281][282][283][284][285] Object detection [286][287][288] Acceleration [289][290][291][292][293] Gyro sensors [294][295][296][297][298][299] Bio sensors 234,256,257,[300][301][302] Gas=chemical sensors 186,233,240,243,[246][247][248]250,251,253,254,261,303,304) Application of piezoelectric thin films 214,215,218,305) Microfluidic control 306) Continued on next page:…”

Section: Transmittermentioning

confidence: 99%

“…Such sensors are also applied to biosensors 234,256,257,[300][301][302] and gas=chemical sensors. 186,233,240,243,[246][247][248]250,251,253,254,261,303,304) Most of these sensors have films that undergo a chemical reaction with target substances, which cause mass loading of the piezoelectric resonators. Therefore, such a sensor is also a type of mass sensor.…”

Section: Theorymentioning

confidence: 99%

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Introduction of measurement techniques in ultrasonic electronics: Basic principles and recent trends

Mizutani¹,

Wakatsuki²,

Ebihara³

2016

Jpn. J. Appl. Phys.

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Measurementthe act of measuring physical properties that we performhas the potential to contribute to the successful advancement of sciences and society. To open doors in physics and other sciences, various measurement methods and related applications have been developed, and ultrasound has remained a useful probe, power source, and interesting measurement object for the past two centuries. In this paper, we first summarize the basic principles of ultrasound from the viewpoint of measurement techniques for readers who just have started studying or are interested in the field of ultrasonic electronics. Moreover, we also introduce recent studiesultrasonic properties of materials, measurement techniques, piezoelectric devices, nonlinear acoustics, biomedical ultrasound, and ocean acousticsand their trends related to measurement techniques in ultrasonic electronics to provide some ideas for related applications.

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Section: Transmittermentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Introduction of measurement techniques in ultrasonic electronics: Basic principles and recent trends

Mizutani¹,

Wakatsuki²,

Ebihara³

2016

Jpn. J. Appl. Phys.

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“…Recently, the present authors developed a new technology called ball surface acoustic wave (SAW) moisture sensors [ 5 ]. It covers a wide range of moisture level, from a few ppbV to hundreds ppmV, and the most prominent characteristic is its quick response to a sudden variation in the moisture level [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Method and an Equipment for Generating the Standard Moisture in Gas Flowing through a Pipe

Tsukahara¹,

Hirayama²,

Takeda³

et al. 2018

Sensors

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When inert gas containing water molecules flows into a metal pipe, the water molecules cannot exit instantaneously from the outlet of the pipe but are captured at adsorption sites on the inner surface of the pipe until most of the sites are occupied. A theoretical model and a subsequent experiment in this article show that the delay time depends on the amount of moisture level; the higher the moisture-level, the shorter the delay time. Based on the result, we propose a new method and its implementation to the validation of a standard moisture generation to be used in the field measurement such as in factories and pipe lines.

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“…Research and development of SAW devices have been widely carried out in recent years for applications in filters, sensors and duplexers. [18][19][20] Although gate drive circuits with optical isolation, 21) a resonant circuit, 22) and a piezoelectric transformer 23) have been studied, the gate drive circuit using SAW filters has not been reported. In this system, the control signals for the switching devices are multiplexed and transmitted through a single coaxial line as RF signals.…”

Section: Introductionmentioning

confidence: 99%

Multiplex transmission system for gate drive signals of inverter circuit using surface acoustic wave filters

Suzuki

Ueda

Goka

et al. 2016

Jpn. J. Appl. Phys.

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We propose and fabricate a multiplexed transmission system based on frequency-division multiple access (FDMA) with surface acoustic wave (SAW) filters. SAW filters are suitable for use in wide-gap switching devices and multilevel inverters because of their capability to operate at high temperatures, good electrical isolation, low cost, and high reliability. Our proposed system reduces the number of electrical signal wires needed to control each switching device and eliminates the need for isolation circuits, simplifying the transmission system and gate drive circuits. We successfully controlled two switching devices with a single coaxial line and confirmed the operation of a single-phase half-bridge inverter at a supply voltage of 100 V, and the total delay time to control the switching devices was less than 2.5 µs. Our experimental results validated our proposed system.

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Temperature compensation of ball surface acoustic wave sensor by two-frequency measurement using undersampling

Cited by 12 publications

References 36 publications

Introduction of measurement techniques in ultrasonic electronics: Basic principles and recent trends

Introduction of measurement techniques in ultrasonic electronics: Basic principles and recent trends

A Novel Method and an Equipment for Generating the Standard Moisture in Gas Flowing through a Pipe

Multiplex transmission system for gate drive signals of inverter circuit using surface acoustic wave filters

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