Research on the Frequency Response and Dynamic Range of the Quadrature Fiber Optic Fabry-Perot Cavity Microphone Based on the Differential Cross Multiplication Demodulation Algorithm.

Baokai Ren, Jin Cheng, Longjiang Zhao, Zhenghou Zhu, Xiaoping Zou, Lei Qin, Yifei Wang

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Baokai RenResearch Center for Sensor Technology, School of Applied Sciences, Mechanical Electrical Engineering School, Jianxiangqiao Campus, Beijing Information Science and Technology University, Beijing 100101, China.

Jin ChengResearch Center for Sensor Technology, School of Applied Sciences, Mechanical Electrical Engineering School, Jianxiangqiao Campus, Beijing Information Science and Technology University, Beijing 100101, China.

Longjiang ZhaoCollege of Engineering, Qufu Normal University, Rizhao 276826, China.

Zhenghou ZhuSchool of Materials Science & Engineering, Nanchang University, Nanchang 330031, China.

Xiaoping ZouResearch Center for Sensor Technology, School of Applied Sciences, Mechanical Electrical Engineering School, Jianxiangqiao Campus, Beijing Information Science and Technology University, Beijing 100101, China.

Lei QinResearch Center for Sensor Technology, School of Applied Sciences, Mechanical Electrical Engineering School, Jianxiangqiao Campus, Beijing Information Science and Technology University, Beijing 100101, China.

Yifei WangResearch Center for Sensor Technology, School of Applied Sciences, Mechanical Electrical Engineering School, Jianxiangqiao Campus, Beijing Information Science and Technology University, Beijing 100101, China.ORCID 0000-0001-6025-8407

Funding

Beijing Key Laboratory for Sensors of BISTU 2019CGKF007Beijing Key Laboratory for Sensors of BISTU 2020CGKF004Concept Verification Project of Zhongguancun Open Laboratory 202005201-(07)Key Research Projects of BISTU 2018-22Key Research Projects of BISTU 2019-22Key Research Projects of BISTU 2019-23Key Research Projects of BISTU 2019-27Natural Science Foundation of Beijing 4212036Natural Science Foundation of Beijing Z160002Natural Science Foundation of China 61401432Natural Science Foundation of China 61671068Natural Science Foundation of China 61875186Natural Science Foundation of China U2006218Qin Xin Talents Cultivation Program QXTCP A202103

6 · The paper itself

Abstract

A quadrature fiber optic Fabry-Perot cavity microphone based on a differential cross multiplication algorithm consists of a pair of fibers and a membrane. It has many advantages such as high sensitivity, a simple structure, and resistance to electromagnetic interference. However, there are no systematic studies on its key performance, for example, its frequency response and dynamic range. In this paper, a comprehensive study of these two key parameters is carried out using simulation analysis and experimental verification. The upper limit of the frequency response range and the upper limit of the dynamic range influence each other, and they are both affected by the data sampling rate. At a certain data sampling rate, the higher the upper limit of the frequency response range is the lower the upper limit of the dynamic range. The quantitative relationship between them is revealed. In addition, these two key parameters also are affected by the quadrature phase deviation. The quadrature phase deviation should not exceed 0.25π under the condition that the demodulated signal intensity is not attenuated by more than 3 dB. Subsequently, a short-step quadrature Fabry-Perot cavity method is proposed, which can suppress the quadrature phase deviation of the quadrature fiber optic Fabry-Perot cavity microphone based on the differential cross multiplication algorithm.

Indexed as

differential cross multiplicationdynamic rangefrequency responsequadrature Fabry–Perot cavityquadrature phase deviation

Identifiers

PMID34577359

DOI10.3390/s21186152

PMCPMC8470968

What OpenQuestion holds

Textmetadata

LicenceCC BY

Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.