schliessen

Filtern

 

Bibliotheken

Apparatus and method for efficient sampling of critical parameters demonstrated by monitoring an Overhauser geomagnetic sensor

The polarization frequency of free radical solution in Overhauser geomagnetic sensor determines the quality of the Larmor precession signal generated by the sensor. To obtain the polarization frequency accurately, a test apparatus was designed in this paper, which can overcome existing problems in t... Full description

Journal Title: Review of Scientific Instruments December 2018, Vol.89(12)
Main Author: Liu, Huan
Other Authors: Dong, Haobin , Ge, Jian , Liu, Zheng , Yuan, Zhiwen , Zhu, Jun , Zhang, Haiyang
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0034-6748 ; E-ISSN: 1089-7623 ; DOI: 10.1063/1.5054749
Link: http://dx.doi.org/10.1063/1.5054749
Zum Text:
SendSend as email Add to Book BagAdd to Book Bag
Staff View
recordid: aip_complete10.1063/1.5054749
title: Apparatus and method for efficient sampling of critical parameters demonstrated by monitoring an Overhauser geomagnetic sensor
format: Article
creator:
  • Liu, Huan
  • Dong, Haobin
  • Ge, Jian
  • Liu, Zheng
  • Yuan, Zhiwen
  • Zhu, Jun
  • Zhang, Haiyang
subjects:
  • Articles
ispartof: Review of Scientific Instruments, December 2018, Vol.89(12)
description: The polarization frequency of free radical solution in Overhauser geomagnetic sensor determines the quality of the Larmor precession signal generated by the sensor. To obtain the polarization frequency accurately, a test apparatus was designed in this paper, which can overcome existing problems in the presently used apparatuses, such as lower resolution, complex operation, etc. The proposed apparatus adopts a high-resolution direct digital synthesis as the controllable radio frequency (RF) signal source. Meanwhile, an analog-to-digital converter synchronization acquisition technology combined with a normalization approach is proposed, which effectively solves the problem of the uneven amplitude-frequency characteristic in the range of 50 MHz–100 MHz. Moreover, the apparatus is integrated by adopting the RF power and applying the weak signal amplifier as an auxiliary measurement channel. The equivalent circuit of the sensors resonant cavity was simulated, and the efficiency curve of the adjustable capacitors to the resonant frequency and the quality factor were obtained. The simulated results were further verified by testing the resonance cavity characteristics of a commercial Overhauser geomagnetic sensor under different conditions. Furthermore, the relationship between the polarization degree of the free radical solution and RF excitation power and time were also obtained. The testing methods and results were given, and the experimental data were analyzed. Finally, the experimental results demonstrate that the proposed apparatus can measure the polarization frequency of the free radical solution, the bandwidth, and the quality factor, accurately. Furthermore, it can be used for the determination of the polarization power and time during the design process for an Overhauser magnetometer.
language: eng
source:
identifier: ISSN: 0034-6748 ; E-ISSN: 1089-7623 ; DOI: 10.1063/1.5054749
fulltext: fulltext
issn:
  • 0034-6748
  • 1089-7623
  • 00346748
  • 10897623
url: Link


@attributes
ID1485280555
RANK0.07
NO1
SEARCH_ENGINEprimo_central_multiple_fe
SEARCH_ENGINE_TYPEPrimo Central Search Engine
LOCALfalse
PrimoNMBib
record
control
sourcerecordid10.1063/1.5054749
sourceidaip_complete
recordidTN_aip_complete10.1063/1.5054749
sourcesystemPC
pqid2154862653
display
typearticle
titleApparatus and method for efficient sampling of critical parameters demonstrated by monitoring an Overhauser geomagnetic sensor
creatorLiu, Huan ; Dong, Haobin ; Ge, Jian ; Liu, Zheng ; Yuan, Zhiwen ; Zhu, Jun ; Zhang, Haiyang
ispartofReview of Scientific Instruments, December 2018, Vol.89(12)
subjectArticles
descriptionThe polarization frequency of free radical solution in Overhauser geomagnetic sensor determines the quality of the Larmor precession signal generated by the sensor. To obtain the polarization frequency accurately, a test apparatus was designed in this paper, which can overcome existing problems in the presently used apparatuses, such as lower resolution, complex operation, etc. The proposed apparatus adopts a high-resolution direct digital synthesis as the controllable radio frequency (RF) signal source. Meanwhile, an analog-to-digital converter synchronization acquisition technology combined with a normalization approach is proposed, which effectively solves the problem of the uneven amplitude-frequency characteristic in the range of 50 MHz–100 MHz. Moreover, the apparatus is integrated by adopting the RF power and applying the weak signal amplifier as an auxiliary measurement channel. The equivalent circuit of the sensors resonant cavity was simulated, and the efficiency curve of the adjustable capacitors to the resonant frequency and the quality factor were obtained. The simulated results were further verified by testing the resonance cavity characteristics of a commercial Overhauser geomagnetic sensor under different conditions. Furthermore, the relationship between the polarization degree of the free radical solution and RF excitation power and time were also obtained. The testing methods and results were given, and the experimental data were analyzed. Finally, the experimental results demonstrate that the proposed apparatus can measure the polarization frequency of the free radical solution, the bandwidth, and the quality factor, accurately. Furthermore, it can be used for the determination of the polarization power and time during the design process for an Overhauser magnetometer.
languageeng
source
identifier
version5
lds50peer_reviewed
links
openurl$$Topenurl_article
backlink$$Uhttp://dx.doi.org/10.1063/1.5054749$$EView_source_record
openurlfulltext$$Topenurlfull_article
search
creatorcontrib
0Liu, Huan
1Dong, Haobin
2Ge, Jian
3Liu, Zheng
4Yuan, Zhiwen
5Zhu, Jun
6Zhang, Haiyang
titleApparatus and method for efficient sampling of critical parameters demonstrated by monitoring an Overhauser geomagnetic sensor
subjectArticles
general
0English
1© 2018 Author(s) (AIP)
2AIP Publishing LLC
3AIP Journals
410.1063/1.5054749
sourceidaip_complete
recordidaip_complete10.1063/1.5054749
issn
00034-6748
11089-7623
200346748
310897623
rsrctypearticle
searchscopeaip_journals
scopeaip_journals
descriptionThe polarization frequency of free radical solution in Overhauser geomagnetic sensor determines the quality of the Larmor precession signal generated by the sensor. To obtain the polarization frequency accurately, a test apparatus was designed in this paper, which can overcome existing problems in the presently used apparatuses, such as lower resolution, complex operation, etc. The proposed apparatus adopts a high-resolution direct digital synthesis as the controllable radio frequency (RF) signal source. Meanwhile, an analog-to-digital converter synchronization acquisition technology combined with a normalization approach is proposed, which effectively solves the problem of the uneven amplitude-frequency characteristic in the range of 50 MHz–100 MHz. Moreover, the apparatus is integrated by adopting the RF power and applying the weak signal amplifier as an auxiliary measurement channel. The equivalent circuit of the sensors resonant cavity was simulated, and the efficiency curve of the adjustable capacitors to the resonant frequency and the quality factor were obtained. The simulated results were further verified by testing the resonance cavity characteristics of a commercial Overhauser geomagnetic sensor under different conditions. Furthermore, the relationship between the polarization degree of the free radical solution and RF excitation power and time were also obtained. The testing methods and results were given, and the experimental data were analyzed. Finally, the experimental results demonstrate that the proposed apparatus can measure the polarization frequency of the free radical solution, the bandwidth, and the quality factor, accurately. Furthermore, it can be used for the determination of the polarization power and time during the design process for an Overhauser magnetometer.
creationdate2018
startdate20181201
enddate20181231
addtitleReview of Scientific Instruments
lsr40Review of Scientific Instruments, December 2018, Vol.89 (12)
citationvol 89 issue 12
lsr30VSR-Enriched:[pqid, pages, orcidid]
sort
titleApparatus and method for efficient sampling of critical parameters demonstrated by monitoring an Overhauser geomagnetic sensor
authorLiu, Huan ; Dong, Haobin ; Ge, Jian ; Liu, Zheng ; Yuan, Zhiwen ; Zhu, Jun ; Zhang, Haiyang
creationdate20181200
lso0120181200
facets
frbrgroupid9221877832961950146
frbrtype5
newrecords20181219
languageeng
creationdate2018
topicArticles
collectionAIP Journals
prefilterarticles
rsrctypearticles
creatorcontrib
0Liu, Huan
1Dong, Haobin
2Ge, Jian
3Liu, Zheng
4Yuan, Zhiwen
5Zhu, Jun
6Zhang, Haiyang
jtitleReview of Scientific Instruments
toplevelpeer_reviewed
delivery
delcategoryRemote Search Resource
fulltextfulltext
addata
aulast
0Liu
1Dong
2Ge
3Yuan
4Zhu
5Zhang
aufirstHuan ; Haobin ; Jian ; Zheng ; Zhiwen ; Jun ; Haiyang
auinitH
au
0Liu, Huan
1Dong, Haobin
2Ge, Jian
3Liu, Zheng
4Yuan, Zhiwen
5Zhu, Jun
6Zhang, Haiyang
atitleApparatus and method for efficient sampling of critical parameters demonstrated by monitoring an Overhauser geomagnetic sensor
jtitleReview of Scientific Instruments
stitleRev. Sci. Instrum.
risdate201812
volume89
issue12
issn0034-6748
eissn1089-7623
formatjournal
genrearticle
ristypeJOUR
abstractThe polarization frequency of free radical solution in Overhauser geomagnetic sensor determines the quality of the Larmor precession signal generated by the sensor. To obtain the polarization frequency accurately, a test apparatus was designed in this paper, which can overcome existing problems in the presently used apparatuses, such as lower resolution, complex operation, etc. The proposed apparatus adopts a high-resolution direct digital synthesis as the controllable radio frequency (RF) signal source. Meanwhile, an analog-to-digital converter synchronization acquisition technology combined with a normalization approach is proposed, which effectively solves the problem of the uneven amplitude-frequency characteristic in the range of 50 MHz–100 MHz. Moreover, the apparatus is integrated by adopting the RF power and applying the weak signal amplifier as an auxiliary measurement channel. The equivalent circuit of the sensors resonant cavity was simulated, and the efficiency curve of the adjustable capacitors to the resonant frequency and the quality factor were obtained. The simulated results were further verified by testing the resonance cavity characteristics of a commercial Overhauser geomagnetic sensor under different conditions. Furthermore, the relationship between the polarization degree of the free radical solution and RF excitation power and time were also obtained. The testing methods and results were given, and the experimental data were analyzed. Finally, the experimental results demonstrate that the proposed apparatus can measure the polarization frequency of the free radical solution, the bandwidth, and the quality factor, accurately. Furthermore, it can be used for the determination of the polarization power and time during the design process for an Overhauser magnetometer.
pubAIP Publishing LLC
doi10.1063/1.5054749
pages125109
orcidid0000-0001-9316-4749
date2018-12