Sensitivity of Frequency Change of Piezoelectric Vibratory Tactile Sensor Using Longitudinal-Bar-Type Resonator

Kudo, Subaru

doi:10.1143/jjap.46.4704

Cited by 9 publications

(10 citation statements)

References 12 publications

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“…260,277,278) As described in the previous section, piezoelectric devices can be modulator-type sensors, in which the target phenomena affect the signals from the devices. In this way, piezoelectric devices can be used as mechanical sensors such as force sensors, [279][280][281][282][283][284][285] object detection sensors, [286][287][288] acceleration sensors, [289][290][291][292][293] and gyro sensors. [294][295][296][297][298][299] In these sensors, direct forces or inertial forces are applied to a vibrating resonator, so that the output signal is modulated such as its resonance frequency.…”

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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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: 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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“…This problem can be solved by an idea of active sensing. In the field of a tactile sensor, the vibration of a resonator is used to detect the characteristic of an object [10]. The tactile sensor is operated in a longitudinal mode and detects the softness and hardness of an object as changes in resonance frequencies.…”

Section: A Application Of Dither For Contact Detectionmentioning

confidence: 99%

Contact detection using dither in force sensorless motion control

Mizuochi

Ohnishi

2013

2013 IEEE International Conference on Mechatronics (ICM)

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Demand for using robots in unstructured environments has been increasing. When operating robots in unstructured environments, the robots often come into contact with objects intentionally or unintentionally. Since it is necessary to make contact with an object in order to execute complicated tasks, not only contact avoidance but also contact detection and stabilization of contact are required. This paper focuses on detecting contact during operation. A real-time force sensorless contact detection method based on applying dither and timefrequency analysis is proposed. Since the influence of dither on acceleration is attenuated when contact occurs, the proposed method judges the state of contact by monitoring the decrease in the dither frequency component of acceleration. The validity of the proposed method was shown by the improvement in contact detection performance verified through experiments.

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“…A strain sensor is used for bending detection. Conventional strain sensing techniques include pressure resistance, [1][2][3][4] capacitance, [4][5][6][7][8] optics, [9][10][11][12][13][14] and piezoelectric [15][16][17][18][19] methods. Shikida and Hasegawa et al attached a piezoresistive bridge to a diaphragm to measure the contact pressure 1) and stiffness of an object.…”

Section: Introductionmentioning

confidence: 99%

Frequency response analysis of piezoelectric resonance of poly-lactic acid film for bending angle detection

Takarada

Nakanishi

Wang

et al. 2022

Jpn. J. Appl. Phys.

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The relationship between the output voltage from a poly-lactic acid piezoelectric film sensor and the bending angle of it can be derived by analyzing the resonance frequency of the sensor changes with the bending angle using the finite element method. The proposed sensor was excited and its oscillation was observed using the piezoelectricity of poly-lactic acid. The output voltage was amplified by resonating a brass plate with a slit. The frequency changes significantly with bending because the change in frequency of resonance of the metal substrate with high mechanical Q was measured. The resonance frequency increased linearly when the bending angle ranged from 0 ° to 5 °. It was also confirmed that the correspondence between the frequency and the bending angle is uniquely determined because there was only one peak of the output voltage amplitude for inputs of multiple frequencies.

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Sensitivity of Frequency Change of Piezoelectric Vibratory Tactile Sensor Using Longitudinal-Bar-Type Resonator

Cited by 9 publications

References 12 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

Contact detection using dither in force sensorless motion control

Frequency response analysis of piezoelectric resonance of poly-lactic acid film for bending angle detection

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