Development of a new insect pest control device using noncontact force generated by ultrasonic transducers

Urairi, Chihiro; Hoshi, Takayuki; Ohta, I.

doi:10.1007/s13355-022-00774-w

Cited by 4 publications

(1 citation statement)

References 25 publications

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“…These technologies have a wide range of applications, as evidenced by recent studies. [1][2][3][4][5] For instance, innovations such as highly directional speakers, [6][7][8] non-contact tactile feedback, [9][10][11] threedimensional acoustic levitation and manipulation, [12][13][14][15][16][17][18][19] graphics on a carpet, 20) artificial pollination, 21) insect pest control, 22) wound healing acceleration, 23) hair regrowth, 24) horizontally omnidirectional audible sound source, 25) and non-destructive testing 26) showcase the potential of high-intensity ultrasonic applications. Notably, the exploration of acoustic holography based on phased arrays has become increasingly prominent, leading to sophisticated sound field control.…”

Section: Introductionmentioning

confidence: 99%

Optical fiber-based acoustic intensity microphone for high-intensity airborne ultrasound measurement

Hoshi,

O-oka

2024

Jpn. J. Appl. Phys.

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The increasing use of airborne ultrasonic waves in daily life, driven by advances in parametric and phased arrays, has led to innovative applications like highly directional speakers, non-contact tactile feedback, 3D acoustic levitation, and medical therapies. These advancements necessitate accurate measurement of high-intensity ultrasonic waves, exceeding the capability of traditional microphones limited to around 160 dB , and highlight the growing importance of measuring the sound field not merely as scalar (sound pressure) but as vector (acoustic intensity) to accommodate future technological developments. This paper introduces an acoustic intensity microphone using optical fibers as probes to overcome these limitations. The proposed method replaces the two ordinary microphones used in the traditional acoustic intensity measurement method with thin optical fibers, minimizing sound field disturbance. Experimental validation and the structure of a practical acoustic intensity microphone are discussed, building upon foundational work presented at USE2023 with added verification and insights.

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Section: Introductionmentioning

confidence: 99%

Optical fiber-based acoustic intensity microphone for high-intensity airborne ultrasound measurement

Hoshi,

O-oka

2024

Jpn. J. Appl. Phys.

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Research on vibration characteristics of the longitudinal-radial composite piezoelectric ultrasonic transducer

Zhang

Zhou

et al. 2023

Applied Acoustics

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A new pest suction machine to control Bemisia tabaci (Hemiptera: Aleyrodidae) in tomato greenhouses

Saito,

Makita,

Yamane

et al. 2024

Journal of Economic Entomology

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The sweetpotato whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is challenging to control using chemical pesticides owing to its resistance to many insecticides. Thus, there has been an increasing demand for alternative control measures. Thus, this study evaluated the efficacy of a newly designed pest suction machine to manage whiteflies on tomato plants (Solanum lycopersicum L.) (Solanales: Solanaceae) in greenhouses over 2 seasons. The suction machine comprised a battery-powered cart with a mounted suction unit, an ultrasonic device, and green lights. Ultrasonic irradiation provided non-contact vibration, facilitating the movement of adult whiteflies away from the plants, and green lights attracted them to the suction device. This combination effectively captured whitefly adults, even with a weak suction force, saving electricity consumption. The efficacy of suction machine was further evaluated by measuring the number of whitefly adults caught by the machine and the number of adults and nymphs remaining on the tomato leaves. The whitefly population was considerably lower in the treated blocks than in the non-treated blocks in the autumn trial. The machine reduced the density of whitefly adults without using chemical pesticides. Although a lot of optimizations would be required, suction control is an additional and alternative strategy that may be incorporated in the integrated pest management of whiteflies on greenhouse tomato plants.

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Development of a new insect pest control device using noncontact force generated by ultrasonic transducers

Cited by 4 publications

References 25 publications

Optical fiber-based acoustic intensity microphone for high-intensity airborne ultrasound measurement

Optical fiber-based acoustic intensity microphone for high-intensity airborne ultrasound measurement

Research on vibration characteristics of the longitudinal-radial composite piezoelectric ultrasonic transducer

A new pest suction machine to control Bemisia tabaci (Hemiptera: Aleyrodidae) in tomato greenhouses

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