JP7416337B2 - センサ処理装置 - Google Patents
センサ処理装置 Download PDFInfo
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- JP7416337B2 JP7416337B2 JP2023529622A JP2023529622A JP7416337B2 JP 7416337 B2 JP7416337 B2 JP 7416337B2 JP 2023529622 A JP2023529622 A JP 2023529622A JP 2023529622 A JP2023529622 A JP 2023529622A JP 7416337 B2 JP7416337 B2 JP 7416337B2
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- Prior art keywords
- circuit
- sensor
- resistor
- processing device
- main surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 claims description 21
- 239000012212 insulator Substances 0.000 claims description 9
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- 239000004626 polylactic acid Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 14
- 230000003068 static effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 7
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- 230000004048 modification Effects 0.000 description 3
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- 239000002033 PVDF binder Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
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- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
2…検出対象物
5…粘着剤
30…電気抵抗体
40…圧電体
50…振動検知電極
60…絶縁体
70…シールド電極
90…抵抗分圧回路
90A…抵抗分圧回路
91…帰還処理回路
91B…帰還処理回路
95…マイコン
Claims (8)
- 圧電体と、
前記圧電体の第1主面に配置された電気抵抗体と、
前記圧電体の第2主面に配置された振動検知電極と、
第1入力端子および分圧点を有する抵抗分圧回路と、
第2入力端子を有する帰還処理回路と、
を備えるセンサと、
前記抵抗分圧回路の出力に基づいて前記帰還処理回路の出力を調整する処理部と、
を備え、
前記電気抵抗体は、前記分圧点および前記第1入力端子に接続され、
前記振動検知電極は、前記第2入力端子に接続され、
前記圧電体は、単一の部材で構成され、
前記処理部は、
前記抵抗分圧回路の出力に基づいてひずみ量を検出し、
前記帰還処理回路の出力に基づいて脈動を検出し、
前記抵抗分圧回路で検出される前記ひずみ量が一定の値を超える場合、前記帰還処理回路で検出される脈動を無効にする、
センサ処理装置。 - 前記帰還処理回路はボルテージフォロワを含む、
請求項1に記載のセンサ処理装置。 - 前記帰還処理回路は非反転増幅回路を含む、
請求項1に記載のセンサ処理装置。 - 前記電気抵抗体は、前記非反転増幅回路のリファレンス入力端子に接続される、
請求項3に記載のセンサ処理装置。 - 前記抵抗分圧回路はブリッジ回路である、
請求項1乃至請求項4のいずれか1項に記載のセンサ処理装置。 - 前記ブリッジ回路に接続される差動増幅回路をさらに備える、
請求項5に記載のセンサ処理装置。 - 第3主面および第4主面を有し、前記第3主面が前記第2主面に対向して配置される絶縁体と、
前記絶縁体の前記第4主面に配置されるシールド電極と、を備えた、
請求項1乃至請求項6のいずれか1項に記載のセンサ処理装置。 - 前記圧電体は、ポリ乳酸からなる、
請求項1乃至請求項7のいずれか1項に記載のセンサ処理装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021100589 | 2021-06-17 | ||
JP2021100589 | 2021-06-17 | ||
PCT/JP2022/016232 WO2022264641A1 (ja) | 2021-06-17 | 2022-03-30 | センサおよびセンサ処理装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JPWO2022264641A1 JPWO2022264641A1 (ja) | 2022-12-22 |
JPWO2022264641A5 JPWO2022264641A5 (ja) | 2023-09-13 |
JP7416337B2 true JP7416337B2 (ja) | 2024-01-17 |
Family
ID=84527070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023529622A Active JP7416337B2 (ja) | 2021-06-17 | 2022-03-30 | センサ処理装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230123365A1 (ja) |
JP (1) | JP7416337B2 (ja) |
CN (1) | CN115769044A (ja) |
WO (1) | WO2022264641A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002022560A (ja) | 2000-07-06 | 2002-01-23 | Matsushita Electric Ind Co Ltd | 可撓性圧電素子 |
JP2007170942A (ja) | 2005-12-21 | 2007-07-05 | National Institute Of Advanced Industrial & Technology | 部材の弾性波・静的ひずみの計測方法 |
WO2019021981A1 (ja) | 2017-07-26 | 2019-01-31 | 株式会社村田製作所 | 押圧センサ及び電子機器 |
JP2019087886A (ja) | 2017-11-07 | 2019-06-06 | ヤマハ株式会社 | センサー出力装置、音響出力装置および楽器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6329203A (ja) * | 1986-07-23 | 1988-02-06 | Yokogawa Electric Corp | ひずみ増幅器 |
JPS646831A (en) * | 1987-06-30 | 1989-01-11 | Tokyo Sokuhan Kk | Sensor |
-
2022
- 2022-03-30 JP JP2023529622A patent/JP7416337B2/ja active Active
- 2022-03-30 CN CN202280005183.9A patent/CN115769044A/zh active Pending
- 2022-03-30 WO PCT/JP2022/016232 patent/WO2022264641A1/ja unknown
- 2022-12-20 US US18/068,793 patent/US20230123365A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002022560A (ja) | 2000-07-06 | 2002-01-23 | Matsushita Electric Ind Co Ltd | 可撓性圧電素子 |
JP2007170942A (ja) | 2005-12-21 | 2007-07-05 | National Institute Of Advanced Industrial & Technology | 部材の弾性波・静的ひずみの計測方法 |
WO2019021981A1 (ja) | 2017-07-26 | 2019-01-31 | 株式会社村田製作所 | 押圧センサ及び電子機器 |
JP2019087886A (ja) | 2017-11-07 | 2019-06-06 | ヤマハ株式会社 | センサー出力装置、音響出力装置および楽器 |
Also Published As
Publication number | Publication date |
---|---|
CN115769044A (zh) | 2023-03-07 |
WO2022264641A1 (ja) | 2022-12-22 |
JPWO2022264641A1 (ja) | 2022-12-22 |
US20230123365A1 (en) | 2023-04-20 |
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