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Measurement device

A measuring device and measuring unit technology, which is applied in the direction of measuring device, diagnostic recording/measurement, testing moving fluid/granular solid, etc., can solve problems such as inability to output measurement signals, and achieve the effect of improving convenience

Active Publication Date: 2021-05-07
YOKOGAWA ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is a problem that the part in contact with the solution in the measurement part deteriorates with use due to factors including adhesion of foreign matter, deterioration, and scraping, and it becomes impossible to output an accurate measurement signal from the measurement part.

Method used

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no. 1 approach

[0031] refer to Figure 1 to Figure 8 The configuration and functions of the measurement device 1 according to the first embodiment will be mainly described.

[0032] figure 1 It is a schematic diagram showing an example of the configuration of the measurement device 1 according to the first embodiment. The measurement device 1 of the first embodiment acquires information on the state of the solution L. FIG. In the first embodiment, the "information about the state of the solution L" includes the pH concentration, that is, the hydrogen ion concentration. The measurement device 1 of the first embodiment has a plurality of electrode units for glass electrode type pH measurement. if refer to figure 1 , the measurement device 1 has a measurement unit 10 and a protection unit 20 mounted on the measurement unit 10 .

[0033] The measurement unit 10 outputs a measurement signal related to the state of the solution L. The measurement unit 10 has: a first part P1 in a usable stat...

no. 2 approach

[0083] Figure 9 It is a schematic diagram showing an example of the configuration of the measuring device 1 of the second embodiment. refer to Figure 9 The configuration and functions of the measurement device 1 according to the second embodiment will be mainly described.

[0084] In the first embodiment, it was described that the information on the state of the solution L includes the pH concentration, and the measurement unit 10 has each electrode unit for glass electrode type pH measurement, but the present invention is not limited thereto. In the measurement device 1 of the second embodiment, for example, the information on the state of the solution L may include ion concentration, and the measurement unit 10 includes a first ISFET 71 and a second ISFET 72 . The configuration other than the measurement unit 10 of the measurement device 1 of the second embodiment is the same as that of the first embodiment, and the above description of the first embodiment is directly a...

no. 3 approach

[0090] Figure 10 It is a schematic diagram showing an example of the configuration of the measuring device 1 of the third embodiment. refer to Figure 10 The configuration and functions of the measurement device 1 according to the third embodiment will be mainly described.

[0091] In the measurement device 1 of the third embodiment, for example, information related to the state of the solution L may include ion concentration or chemical component composition, and the measurement unit 10 has a first metal thin film 81, a second metal thin film 82, a prism substrate 83 and a photodetector not shown. The configuration other than the measurement unit 10 of the measurement device 1 of the third embodiment is the same as that of the first embodiment, and the above description of the first embodiment is directly applied to this configuration. The same components as in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Diffe...

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Abstract

A measurement device 1 according to this disclosure is for measuring the state of a solution L and comprises a measurement unit 10 for outputting a measurement signal relating to the state of the solution L, a protection part 20 attached to the measurement unit 10, and a control unit 40 for acquiring information about the state of the solution L on the basis of the measurement signal output from the measurement unit 10. The measurement unit 10 comprises a first part P1 that is in a usable state in which the first part P1 contributes to the output of the measurement signal by touching the solution L and a second part P2 that is isolated from the solution L by the protection part 20 and is in a measurement standby state.

Description

[0001] Cross References to Related Applications [0002] The present invention claims the priority of Japanese Patent Application No. 2018-182466 filed on September 27, 2018 in Japan, and the entire disclosure of the application is hereby incorporated herein by reference. technical field [0003] The present invention relates to a measuring device for measuring the state of a solution. Background technique [0004] Conventionally, there is known a technique for measuring the concentration of arbitrary ions such as hydrogen ions contained in a solution. [0005] For example, Patent Document 1 discloses an ion sensor of an ion sensitive field effect transistor (Ion Sensitive Field Effect Transistor (ISFET)) type, the stability of the comparison part is excellent, and the durability of chemical and physical properties is also excellent, so The reproducibility and stability of the measurement results are good, and miniaturization and solidification can be realized. [0006] Pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/403G01N27/30G01N27/36G01N27/401G01N27/414G01N27/416
CPCG01N27/36G01N27/414G01N27/301G01N27/4167G01N21/85G01N21/553G01N21/8422A61B5/1486G01N27/4148
Inventor 村山広大田中仁章大石宪儿平濑政広伊贺柚帆
Owner YOKOGAWA ELECTRIC CORP
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