Operating principles and technical characteristics of a small-sized molecular-electronic seismic sensor with negative feedback

Agafonov, Vadim M.; Егоров, И. В.; Shabalina, Anna

doi:10.3103/s0747923914010022

Cited by 20 publications

(14 citation statements)

References 2 publications

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“…The main advantages of MET-based seismic geophones and accelerometers with negative feedback lie in their extremely high coefficient of conversion of mechanical motion into an electrical signal, the possibility of a significant (compared to a traditional geophone) expansion of the frequency range both in the low-and high-frequency directions, and the simplicity and reliability of the design (Agafonov Agafonov et al 2014). Until recently, the instruments of this kind were used almost exclusively for measurements in the low-frequency domain.…”

Section: Met-based High-sensitive Geophones and Seismic Accelerometersmentioning

confidence: 99%

“…The latter convert mechanical motion of the inertial mass into the electrical signal. An alternative approach based on employment of liquid inertial mass and four-electrode electrochemical transducer with potential difference applied between the electrodes as a converter of the liquid motion into electrical signal was developed in recent years (Huang et al 2013;Agafonov et al 2014). Such devices are known as MET (molecular electronic transfer) or electrochemical sensors.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical Seismometers of Linear and Angular Motion

Agafonov

Neeshpapa

Shabalina

2015

Encyclopedia of Earthquake Engineering

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Section: Met-based High-sensitive Geophones and Seismic Accelerometersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemical Seismometers of Linear and Angular Motion

Agafonov

Neeshpapa

Shabalina

2015

Encyclopedia of Earthquake Engineering

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“…In the literature, one can find information on the current state of developments based on the MET, development vectors and key achievements of scientific groups. As for the operational principles of the devices based on the MET, they are analysed in detail in Agafonov et al (2013).…”

Section: What Is the Met Hydrophone?mentioning

confidence: 99%

Frequency response and self-noise of the MET hydrophone

Zaitsev

Avdyukhina

Рыжков

et al. 2018

J. Sens. Sens. Syst.

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An electrochemical hydrophone based on the principles of molecular electronic transfer (MET) has been described. The paper presents theoretical and experimental results for the sensitivity and the level of selfnoise determination for the MET hydrophone (METH) in the frequency range of 0.02-200 Hz, which determines the fields of acceptance of the devices being developed. An experimental model has been developed by using a force-balancing feedback. Different methods and techniques for its calibration have been developed. The experimental device with 0.75 mV Pa −1 sensitivity flat in the frequency band 0.02-200 Hz has been presented. It has been demonstrated that in the ultra-low-frequency range METH noise could be much lower than the standard Wenz noise model. Easy to produce, cheap and suitable for mass production, the MET hydrophone could be in demand in marine and land acoustic research.Published by Copernicus Publications on behalf of the AMA Association for Sensor Technology.

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“…The main advantages of MET-based seismic geophones and accelerometers with negative feedback lie in their extremely high coefficient of conversion of mechanical motion into an electrical signal, the possibility of a significant (compared to a traditional geophone) expansion of the frequency range both in the low-and high-frequency bands, and the simplicity and reliability of the design [17], [18]. Until recently, the instruments of this kind were used almost exclusively for measurements in the low-frequency domain.…”

Section: Met-based Linear Sensors With Negative Feedbackmentioning

confidence: 99%

Low noise Linear and Angular Motion Sensors for Vibration Monitoring

Shabalina¹,

Neeshpapa²,

Zaitsev³

et al. 2015

Third International Conference on Advances in Civil, Structural and Construction Engineering - CSCE 2015

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This article reviews on the development of a new category motion sensors for vibration monitoring including linear and angular accelerometers based on molecular electronic transducer (MET) technology. This technology utilizes liquid not only as an inertial mass but also as one of the main elements in the conversion of mechanical motion into electric current. It is possible to achieve signal amplification close to 10 8. Motion sensors demonstrate wide frequency and dynamic range and sensitivity that are one to two orders of magnitude better than MEMS devices of the same size. They can provide an alternative paradigm in development of motion sensors in wide variety of applications including monitoring systems of complex engineering structures, seismic analysis of bridges and buildings, remote sensing devices, structural behavior and structure wind excitation measurement.

show abstract

Operating principles and technical characteristics of a small-sized molecular-electronic seismic sensor with negative feedback

Cited by 20 publications

References 2 publications

Electrochemical Seismometers of Linear and Angular Motion

Electrochemical Seismometers of Linear and Angular Motion

Frequency response and self-noise of the MET hydrophone

Low noise Linear and Angular Motion Sensors for Vibration Monitoring

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