JP7390976B2 - スマートセンサ適用のためのデバイスおよび方法 - Google Patents
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- 230000005284 excitation Effects 0.000 claims description 122
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- 101001078093 Homo sapiens Reticulocalbin-1 Proteins 0.000 description 19
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- 239000000126 substance Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000002847 impedance measurement Methods 0.000 description 2
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- 229910052760 oxygen Inorganic materials 0.000 description 2
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- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2829—Testing of circuits in sensor or actuator systems
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
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- G01N27/416—Systems
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- G01N27/416—Systems
- G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0057—Warfare agents or explosives
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
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Description
本出願は、2017年1月9日に出願されたPCT出願第PCT/CN2017/070608号に対する優先権を主張する、2017年2月15日に出願された米国特許出願第15/433,862号に対する優先権の利益を主張し、これらの出願は、参照によりそれらの全体が本明細書に組み込まれる。
本明細書は、概して、電子センサのためのインターフェース回路に関する。いくつかの実施形態は、電子センサのための試験回路に関する。
Rx=(Rcal)(Ical/Ib1)(Ib2/Ix)
として決定され、式中、励起がVexc1である場合、Ib1はブリッジ抵抗における電流であり、励起がVexc2である場合、Ib2はブリッジ抵抗における電流である。測定励起電圧および利得は、各対の電流測定について同じであり、測定システムにおける測定電圧および利得の精度は、重要ではない。
Rx=(Rcal)(Ical/Ib11)(Ib12/Ib22)(Ib23/Ix)
によって決定され得る。
上記の詳細な説明は、添付の図面への参照を含み、図面は、詳細な説明の一部を形成する。図面は、例証として、本発明を実践することができる特定の実施形態を示す。これらの実施形態は、本明細書において「例」とも呼ばれる。本明細書で参照される全ての公報、特許、および特許文書は、参照により個別に組み込まれるように、参照によりその全体が本明細書に組み込まれる。本明細書とこのように参照により組み込まれたこれらの文書との間に一貫性のない使用がある場合、組み込まれた参照における使用は、本明細書の使用の補足と考えられるべきであり、相反する不一致については、本明細書における使用が統制する。
106,206 センサ回路
Rload 負荷抵抗
208 励起回路
210 測定回路
Claims (5)
- 電子センサのための試験回路であって、
所定の電圧を前記電子センサに印加するように構成された励起回路と、
前記電子センサの電流を測定し、測定した前記電流を用いて前記電子センサの内部インピーダンスを計算して、計算された内部インピーダンスをユーザまたはプロセスに提供するように構成され、前記プロセスは計算された内部インピーダンスをメモリに格納するプロセスである測定回路と、を備え、
前記励起回路は、励起信号を前記電子センサに印加するように構成されており、前記励起回路は、第1の回路利得段および第2の回路利得段であって、電圧利得を設定可能な第1の回路利得段および第2の回路利得段を含み、第1の利得モードで、前記励起回路は、前記第1の利得モードにおいて第1の電圧利得を印加する前記第1の回路利得段および前記第1の利得モードにおいて第2の電圧利得を印加する前記第2の回路利得段を使用して試験信号から前記所定の電圧として第1の電圧を有する第1の励起信号を生成し、第2の利得モードで、前記励起回路は、前記第2の利得モードにおいて第3の電圧利得を印加する前記第1の回路利得段および前記第2の利得モードにおいて第4の電圧利得を印加する前記第2の回路利得段を使用して前記試験信号から前記所定の電圧として第2の電圧であって、前記第1の電圧とは異なる電圧を有する第2の励起信号を生成し、
前記測定回路は、前記第1の励起信号または前記第2の励起信号の前記電子センサへの印加を前記励起回路が選択的に開始するように設定し、かつ前記電子センサの内部インピーダンスを計算するように構成され、開始される前記印加が前記第1の励起信号の印加であるか、または前記第2の励起信号の印加であるかは、前記電子センサの種類に基づき決定され、
前記第1の回路利得段は、プログラマブル利得増幅器を含み、前記第2の回路利得段は、第1の抵抗、第2の抵抗、オペアンプおよび交差連結されたスイッチ回路を含み、
前記第1の抵抗と前記第2の抵抗各々の一方の端は、前記オペアンプに接続され、
前記第1の利得モードにおいては、前記交差連結されたスイッチ回路は、前記第1の回路利得段を前記第1の抵抗の他端に接続し、前記オペアンプのフィードバックを前記第2の抵抗の他端に接続し、
前記第2の利得モードにおいては、前記交差連結されたスイッチ回路は、前記第1の回路利得段を前記第2の抵抗の前記他端に接続し、前記オペアンプの前記フィードバックを前記第1の抵抗の前記他端に接続する、試験回路。 - 前記測定回路は、前記電子センサの前記内部インピーダンスが第1の内部インピーダンス範囲を有するときに、前記第1の励起信号の前記電子センサへの印加を開始するように前記励起回路を設定し、前記電子センサの前記内部インピーダンスが第2の内部インピーダンス範囲を有するときに、前記第2の励起信号の前記電子センサへの印加を開始するように前記励起回路を設定するように構成されており、前記第1の内部インピーダンス範囲は、前記第2の内部インピーダンス範囲よりも大きなインピーダンスのための範囲である、請求項1に記載の試験回路。
- 前記第2の回路利得段の前記信号利得は、前記第1の利得モードでは1であり、前記第2の利得モードでは1未満かつ0を上回る、請求項2に記載の試験回路。
- 前記第1の回路利得段の前記信号利得は、前記第1の利得モードでは1を上回り、前記第2の利得モードでは1未満かつ0を上回る、請求項2に記載の試験回路。
- 前記試験信号を生成するように構成されたデジタル/アナログ変換器(DAC)回路を含む、請求項1に記載の試験回路。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNPCT/CN2017/070608 | 2017-01-09 | ||
CNPCT/CN2017/070608 | 2017-01-09 | ||
US15/433,862 US10466296B2 (en) | 2017-01-09 | 2017-02-15 | Devices and methods for smart sensor application |
US15/433,862 | 2017-02-15 | ||
JP2018569191A JP2020507054A (ja) | 2017-01-09 | 2018-01-08 | スマートセンサ適用のためのデバイスおよび方法 |
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JP7390976B2 true JP7390976B2 (ja) | 2023-12-04 |
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JP (2) | JP2020507054A (ja) |
CN (3) | CN113970693A (ja) |
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JP2020507054A (ja) | 2020-03-05 |
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CN109791178A (zh) | 2019-05-21 |
US20210405110A1 (en) | 2021-12-30 |
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WO2018127793A1 (en) | 2018-07-12 |
US20200033398A1 (en) | 2020-01-30 |
US10466296B2 (en) | 2019-11-05 |
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US20180196101A1 (en) | 2018-07-12 |
US11656269B2 (en) | 2023-05-23 |
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US20230251302A1 (en) | 2023-08-10 |
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