JP6836786B2 - 信号受信回路及び測定装置 - Google Patents
信号受信回路及び測定装置 Download PDFInfo
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- JP6836786B2 JP6836786B2 JP2017130590A JP2017130590A JP6836786B2 JP 6836786 B2 JP6836786 B2 JP 6836786B2 JP 2017130590 A JP2017130590 A JP 2017130590A JP 2017130590 A JP2017130590 A JP 2017130590A JP 6836786 B2 JP6836786 B2 JP 6836786B2
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- circuit
- signal receiving
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- receiving circuit
- amplifier
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- 239000003990 capacitor Substances 0.000 claims description 33
- 230000005672 electromagnetic field Effects 0.000 claims description 3
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- 230000003321 amplification Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
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- 238000010586 diagram Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
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- 230000008859 change Effects 0.000 description 3
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- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
10 LC並列共振回路
11 インダクタ
12 キャパシタ
13、14、22、23、24、25 抵抗素子
20、20X 増幅回路
21 差動増幅器
100、100X 信号受信回路
200 測定装置
210 パルサ
220 超音波振動子
230 デジタルオシロスコープ
300 測定対象物
310 遅延材
Claims (7)
- 非反転入力端子、反転入力端子及び出力端子を備えた差動増幅器を含み、前記反転入力端子と前記出力端子との間に第1の抵抗素子が設けられた増幅回路と、
インダクタ及びキャパシタを含むLC並列共振回路と、
前記LC並列共振回路と前記反転入力端子との間に設けられた第2の抵抗素子と、
を含み、
前記インダクタ及び前記キャパシタは、一端が前記非反転入力端子の電位と同じ電位とされており、他端が前記第2の抵抗素子の一端に接続されており、
前記LC並列共振回路に信号源が直接接続されている
信号受信回路。 - 前記非反転入力端子が所定の定電位ラインに接続されている、
請求項1に記載の信号受信回路。 - 前記インダクタ及び前記キャパシタの少なくとも一方が、外部電磁場を捕捉するアンテナを構成している
請求項1または請求項2に記載の信号受信回路。 - 前記第2の抵抗素子の抵抗値は可変である
請求項1から請求項3のいずれか1項に記載の信号受信回路。 - 前記インダクタのインダクタンス及び前記キャパシタのキャパシタンスの少なくとも一方が可変である
請求項1から請求項4のいずれか1項に記載の信号受信回路。 - 前記増幅回路は、オペアンプを含んで構成されている
請求項1から請求項5のいずれか1項に記載の信号受信回路。 - 請求項1から請求項6のいずれか1項に記載の信号受信回路と、
前記LC並列共振回路の共振周波数の帯域に含まれる周波数帯域の音波を発生させる音波発生部と、
を含み、
前記音波発生部から発せられる音波を受けて測定対象物から放射される電磁波を前記信号受信回路で受信する
測定装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2017130590A JP6836786B2 (ja) | 2017-07-03 | 2017-07-03 | 信号受信回路及び測定装置 |
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JP2017130590A JP6836786B2 (ja) | 2017-07-03 | 2017-07-03 | 信号受信回路及び測定装置 |
Publications (2)
Publication Number | Publication Date |
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JP2019015519A JP2019015519A (ja) | 2019-01-31 |
JP6836786B2 true JP6836786B2 (ja) | 2021-03-03 |
Family
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JP2017130590A Active JP6836786B2 (ja) | 2017-07-03 | 2017-07-03 | 信号受信回路及び測定装置 |
Country Status (1)
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JP (1) | JP6836786B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023218725A1 (ja) * | 2022-05-13 | 2023-11-16 | 国立研究開発法人科学技術振興機構 | 測定装置及び測定方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5273610A (en) * | 1975-12-17 | 1977-06-20 | Oki Electric Ind Co Ltd | Automatic training circuit |
JP4667231B2 (ja) * | 2005-12-22 | 2011-04-06 | Okiセミコンダクタ株式会社 | 信号検出回路 |
WO2013011869A1 (ja) * | 2011-07-20 | 2013-01-24 | 国立大学法人東京農工大学 | 被測定対象の特性測定装置及び被測定対象の特性測定方法 |
US9685996B1 (en) * | 2016-06-23 | 2017-06-20 | Nxp B.V. | Antenna coil tuning mechanism |
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- 2017-07-03 JP JP2017130590A patent/JP6836786B2/ja active Active
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