KR102017300B1 - 압력 센서 - Google Patents
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- KR102017300B1 KR102017300B1 KR1020180025626A KR20180025626A KR102017300B1 KR 102017300 B1 KR102017300 B1 KR 102017300B1 KR 1020180025626 A KR1020180025626 A KR 1020180025626A KR 20180025626 A KR20180025626 A KR 20180025626A KR 102017300 B1 KR102017300 B1 KR 102017300B1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
- G01L9/04—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges
- G01L9/045—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges with electric temperature compensating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
- G01L9/125—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor with temperature compensating means
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- 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
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2268—Arrangements for correcting or for compensating unwanted effects
- G01L1/2281—Arrangements for correcting or for compensating unwanted effects for temperature variations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a diaphragm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
제1 온도 측정 기구(103)로 측정되는 온도와, 제2 온도 측정 기구(106)로 측정되는 온도와의 온도차를, 온도차 산출부(107)로 구한다. 제1 온도 측정 기구(103)는, 내측 용기(201)의 소자 배치측(201b)의 외측 벽면에 설치되어 있다. 제2 온도 측정 기구(106)는, 내측 용기(201)를 수용하는 외측 용기(202)의 외측 벽면에 설치되어 있는 히터(104)의 외측 둘레면에 설치되어 있다.
Description
도 2는 본 발명의 실시형태에 있어서의 압력 센서의 구성을 모식적으로 나타낸 단면도이다.
도 3은 압력 도입관(204)의 온도 변화에 대한 제1 온도 측정 기구(103) 및 제2 온도 측정 기구(106)의 측정 결과를 나타낸 특성도이다.
도 4는 압력 도입관(204)의 온도 변화에 대한 온도차 산출부(107)에 의한 온도차의 측정 결과를 나타낸 특성도이다.
도 5는 실시형태에 있어서의 압력 센서의 온도 변화에 따른 제로점 변동을 설명하기 위한 특성도이다.
도 6은 격막 진공계의 검출 디바이스의 일부 구성을 일부 파단하여 나타낸 사시도이다.
103: 제1 온도 측정 기구 104: 히터(가열 기구)
105: 온도 제어부 106: 제2 온도 측정 기구
107: 온도차 산출부 108: 경보 출력부
109: 기억부 110: 보정부
111: 베이스 111a: 지지부
112: 다이어프램 112a: 가동 영역
113: 용량실 114: 가동 전극(제1 전극)
115: 고정 전극(제2 전극) 116: 가동 참조 전극
117: 고정 참조 전극 201: 내측 용기
201a: 압력 검출측 201b: 소자 배치측
202: 외측 용기 203: 격벽
203a: 받침대판 203b: 지지 격벽
203c: 압력 도입 구멍 204: 압력 도입관
205: 배플판 206: 단열 부재
Claims (3)
- 측정 대상으로부터의 압력을 받아 변위하는 다이어프램을 구비하고, 상기 다이어프램의 변위를 다른 물리량의 변화로 변환하는 검출 디바이스와,
상기 다이어프램의 변위에 의한 상기 다른 물리량의 변화를 압력값으로 변환하여 출력하도록 구성된 압력값 출력부와,
상기 검출 디바이스를 수용하는 내측 용기와,
상기 내측 용기를 수용하는 외측 용기와,
상기 내측 용기에 접속되어 상기 내측 용기의 내부에 측정 대상의 압력을 도입하기 위한 압력 도입관과,
상기 내측 용기의 내부에 설치되고, 상기 내측 용기의 내부 공간을 상기 압력 도입관을 통해 상기 측정 대상의 압력이 도입되는 압력 검출측의 공간과, 상기 압력 검출측의 공간과 반대측의 공간에서 상기 검출 디바이스가 배치되는 소자 배치측의 공간으로 분리시키고, 상기 소자 배치측의 면에 상기 검출 디바이스가 접합되어, 상기 압력 검출측의 압력을 상기 검출 디바이스의 상기 다이어프램으로 유도하는 압력 도입 구멍을 갖는 격벽과,
상기 내측 용기의 상기 소자 배치측의 외측 벽면에 설치된 제1 온도 측정 기구와,
상기 외측 용기의 외측 벽면에 설치되어 상기 외측 용기의 내부를 가열하기 위한 가열 기구와,
상기 가열 기구의 동작을 제어하여, 상기 제1 온도 측정 기구로 측정되는 제1 온도값을 설정 온도에 가깝게 하도록 구성된 온도 제어부와,
상기 가열 기구의 온도를 측정하는 제2 온도 측정 기구와,
상기 제1 온도 측정 기구가 측정한 제1 온도값과 제2 온도 측정 기구가 측정한 제2 온도값과의 온도차를 구하도록 구성된 온도차 산출부와,
상기 온도차 산출부가 산출한 온도차가 설정 범위를 벗어난 경우에 경보를 발령하도록 구성된 경보 출력부
를 구비하고,
상기 내측 용기와 상기 외측 용기의 사이에 기체의 층이 형성되어 있는 것을 특징으로 하는 압력 센서. - 제1항에 있어서,
상기 검출 디바이스는, 상기 다이어프램과 이격되어 상기 다이어프램을 지지하는 베이스와, 상기 다이어프램에 설치된 제1 전극과, 상기 베이스에 설치되어 상기 제1 전극과 대향하는 제2 전극을 가지며,
상기 압력값 출력부는, 상기 다이어프램의 변위에 의한 상기 제1 전극과 상기 제2 전극 사이의 용량 변화를 상기 압력값으로 변환하여 출력하는 것을 특징으로 하는 압력 센서. - 제1항 또는 제2항에 있어서,
상기 다이어프램은, 측정 대상으로부터의 압력을 받는 수압부와 반대측에 진공으로 된 용량실을 구비하는 것을 특징으로 하는 압력 센서.
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JPJP-P-2017-044554 | 2017-03-09 | ||
JP2017044554A JP6748006B2 (ja) | 2017-03-09 | 2017-03-09 | 圧力センサ |
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KR20180103706A KR20180103706A (ko) | 2018-09-19 |
KR102017300B1 true KR102017300B1 (ko) | 2019-09-03 |
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US (1) | US10585010B2 (ko) |
JP (1) | JP6748006B2 (ko) |
KR (1) | KR102017300B1 (ko) |
CN (1) | CN108572046B (ko) |
Families Citing this family (11)
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JP6564358B2 (ja) * | 2016-12-08 | 2019-08-21 | 長野計器株式会社 | 物理量測定装置 |
JP6815221B2 (ja) * | 2017-02-17 | 2021-01-20 | アズビル株式会社 | 静電容量型圧力センサ |
IT201700073763A1 (it) * | 2017-07-05 | 2019-01-05 | St Microelectronics Srl | Sensore capacitivo di pressione per il monitoraggio di strutture edilizie, in particolare di calcestruzzo |
JP7092603B2 (ja) * | 2018-08-03 | 2022-06-28 | 株式会社ユニバーサルエンターテインメント | 遊技機 |
FR3092167B1 (fr) * | 2019-01-29 | 2021-10-22 | Arianegroup Sas | Capteur pour la mesure d’une première grandeur physique dont la mesure est influencée par une deuxième grandeur physique |
JP7372062B2 (ja) * | 2019-07-02 | 2023-10-31 | アズビル株式会社 | 圧力センサ |
JP7553261B2 (ja) * | 2020-04-01 | 2024-09-18 | アズビル株式会社 | 圧力センサ用筐体およびこれを備える圧力センサ |
JP7690277B2 (ja) | 2020-11-27 | 2025-06-10 | アズビル株式会社 | 隔膜真空計 |
JP7534198B2 (ja) | 2020-11-27 | 2024-08-14 | アズビル株式会社 | 隔膜真空計 |
KR102695739B1 (ko) * | 2021-05-10 | 2024-08-14 | 아즈빌주식회사 | 격막 진공계 |
CN116007841A (zh) * | 2022-12-30 | 2023-04-25 | 苏州科米隆机电有限公司 | 压力传感器芯片的标定设备和标定方法 |
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US10585010B2 (en) | 2020-03-10 |
CN108572046B (zh) | 2020-04-24 |
US20180259409A1 (en) | 2018-09-13 |
JP6748006B2 (ja) | 2020-08-26 |
CN108572046A (zh) | 2018-09-25 |
JP2018146530A (ja) | 2018-09-20 |
KR20180103706A (ko) | 2018-09-19 |
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