JPH11501123A - 圧力センサおよび圧力トランスミッタ - Google Patents
圧力センサおよび圧力トランスミッタInfo
- Publication number
- JPH11501123A JPH11501123A JP8526354A JP52635496A JPH11501123A JP H11501123 A JPH11501123 A JP H11501123A JP 8526354 A JP8526354 A JP 8526354A JP 52635496 A JP52635496 A JP 52635496A JP H11501123 A JPH11501123 A JP H11501123A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- transmitter
- sensor
- pressure responsive
- responsive
- 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.)
- Granted
Links
Classifications
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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
- G01L9/0075—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance using a ceramic diaphragm, e.g. alumina, fused quartz, glass
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
- Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
- Y10T29/4914—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture with deforming of lead or terminal
- Y10T29/49142—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture with deforming of lead or terminal including metal fusion
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.プロセス制御ループに圧力を送信するための、プロセス制御システム内の 圧力トランスミッタであって、 情報をループに送信するためにループに接続されるインターフェース回路(I /O)と、 圧力に関する信号を受信し、これに応答して圧力情報を前記ループに送信する ように前記インターフェース回路を制御する補償回路と、 前記インターフェース回路および補償回路を収容するトランスミッタハウジン グと、 取り付け部材料で作られたハウジング内の取り付け部と、 前記インターフェース回路および補償回路を取り付け部から絶縁する、ハウジ ング内のプロセス障壁と、 前記取り付け部の材料とは異なる脆性の耐腐蝕性材料で事実上作られ、近い方 の端部で取り付け部に結合され、そこを貫通する通路を有する長手方向部材と、 前記長手方向部材の遠い方の端部にあってプロセス流体に浸され、プロセス流 体圧力に応答して変形する圧力応答部分と、 前記圧力応答部分に結合され、前記長手方向部材の通路およびプロセス障壁の フィードスルーを通して前記補償回路に電気的に接続されたセンサとを具備し、 前記センサおよび電気的接続は前記長手方向部材によってプロセ ス流体から隔離されたトランスミッタ。 2.前記長手方向部材が、そこを通して基準圧を圧力応答構造へ供給するため の空洞を規定する請求項1に記載の圧力トランスミッタ。 3.前記取り付け部に結合された第2の長手方向部材を含むと共に、前記補償 回路に接続された第2のセンサを有する第2の圧力応答部分を支持し、前記圧力 情報は差圧に関連する請求項1に記載の圧力トランスミッタ。 4.前記長手方向部材および圧力応答部分は、実質上異物を含まない接合を有 する請求項1に記載の圧力トランスミッタ。 5.前記長手方向部材および圧力応答部分は、幅をw、厚みをTとするとき、 w/Tが約4.0よりも小さい請求項1に記載の圧力トランスミッタ。 6.前記長手方向部材および圧力応答部分は、幅をw、厚みをTとするとき、 w/Tが約2.3よりも小さい請求項5に記載の圧力トランスミッタ。 7.前記長手方向部材および圧力応答部分は、幅をw、厚みをTとするとき、 w/Tが約1.0よりも小さい請求項6に記載の圧力トランスミッタ。 8.前記長手方向部材にインプラントされた電気的導体を含み、前記センサお よび補償回路の間を電気的に接続する請求項1に記載の圧力トランスミッタ。 9.前記長手方向部材のプロセス流体にさらされる長さがL、最大幅がwであ り、L/wが約3.0よりも大きい請求項1に記載の圧力トランスミッタ。 10.脆性で耐腐蝕性材料から作られ、単結晶材製の少なくとも第2の基板に 接合された1以上の単結晶材製の基板よりなる圧力応答構造と、 前記圧力応答構造に結合され、印加圧力に起因する圧力応答構造の変形に応答 して容量性出力を発生する容量性センサとを具備し、 前記基板間の接合は、単結晶材の強度に事実上等しい結晶接合強度を有する溶 融接合であり、前記材料の融点の絶対温度の約65〜95%の温度で形成される 圧力トランスミッタの圧力センサ。 11.前記圧力応答構造は、空洞の幅をw、厚みをTとするとき、w/Tが約 4.0よりも小さい請求項10に記載の圧力センサ。 12.前記圧力応答構造が、前記容量性センサの近くに基準圧を与えるための 貫通通路を含む請求項10に記載の圧力センサ。 13.前記圧力応答構造が、そこを通して延在し、接合形成のための温度に耐 え得る電気的導体を含む請求項10に記載の圧力センサ。 14.前記電気的導体は前記圧力応答構造にインプラントされた請求項13に 記載の圧力センサ。 15.その材料はサファイアである請求項13に記載の圧力センサ。 16.単結晶および耐腐蝕性材で構成され、幅がwで厚みがTの圧力センサを 有する細長い圧力応答構造体と、 前記圧力応答構造体に結合され、印加圧力に起因する前記圧力応答構造体の変 形に応答して容量性出力を発生する容量性センサとを具備し、 前記幅と厚みの比w/Tが4.0よりも小さい圧力トランスミッタの圧力セン サ。 17.前記圧力応答構造体は1より多い基板を含み、基板間の接合は溶融接合 であり、単結晶材の強度に実質的に等しい強度を有し、材料の融点に相当する絶 対温度の約65〜95%の接合温度で形成される請求項16に記載の圧力センサ 。 18.前記の細長い圧力応答構造体が、そこを通して延びる空洞を含み、前記 容量性センサの近くに基準圧を供給する請求項16に記載の圧力センサ。 19.前記圧力応答構造体にインプラントされた電気的導体を含む請求項16 に記載の圧力センサ。 20.前記圧力応答構造体内の電気的導体が接合温度よりも高い融点を有する 請求項17に記載の圧力センサ。 21.前記圧力応答構造体は、同じ耐腐蝕性材の単結晶よりなる応力分離構造 によって圧力トランスミッタハウジングに結合された請求項16に記載の圧力セ ンサ。 22.圧力感知構造体および圧力トランスミッタハウジングの間 の結合が溶融接合である請求項21に記載の圧力センサ。 23.容量性センサは空洞の間隙の対向面上の導電体ストリップで形成された 導電電極を含む請求項16に記載の圧力センサ。 24.前記導電ストリップは空洞間隙の間隔に実質上等しいか、それよりも小 さい幅と間隔を有する請求項23に記載の圧力センサ。 25.前記圧力応答構造体およびは応力分離構造はプロセス圧力流体によって 取り囲まれ、かつそれに直接さらされている請求項21に記載の圧力センサ。 26.前記材料はサファイアである請求項16に記載の圧力センサ。 27.圧力応答構造体と、 前記圧力応答構造体に固着された背面、および前面を有する第1のコンデンサ 電極と、 前記圧力応答構造体に固着された背面、および前面を有する第2のコンデンサ 電極とを具備し、 前記第1および第2コンデンサ電極は、前記圧力応答構造体に印加される圧力 に応答してそれらの間で相対的な偏向を生ずるように位置決めされ、前記第1お よび第2コンデンサ電極間の電界が実質上前記第1および第2コンデンサ電極の 背面の間から出る圧力トランスミッタの圧力センサ。 28.前記圧力応答構造体は空洞を含み、コンデンサ電極が空洞の互いに反対 側に配置された請求項27に記載の圧力センサ。 29.第1のコンデンサ電極に近い空洞の第1の側にある複数の第1コンデン サ電極および第2のコンデンサ電極に近い空洞の第2の側にある複数の第2コン デンサ電極を含む請求項28に記載の圧力センサ。 30.前記第1のコンデンサ電極は第2のコンデンサ電極に対して相対的に横 方向にずれている請求項29に記載の圧力センサ。 31.圧力応答材料がサファイアからなる請求項27に記載の圧力センサ。 32.前記圧力応答構造体が互いに溶融接合された第1および第2の部分より なり、それらの間に、第1および第2のコンデンサ電極を支持する間隙が形成さ れた請求項27に記載の圧力センサ。 33.前記圧力応答構造体の取り付け部および感知部間の長さは、所望の応力 分離が達成されるように設定された請求項27に記載の圧力センサ。 34.トランスミッタ本体と、 第1のプロセス圧力に結合され、実質上単結晶材料で構成された第1の圧力応 答構造体と、 前記第1の圧力応答構造体に結合され、第1のプロセス圧力に対する前記第1 圧力応答構造体の応答に関連する出力を発生する第1の感知手段と、 実質上単結晶材料で作られ、前記第1の圧力応答構造体をトランスミッタ本体 に結合する第1の応力分離部材と、 第2のプロセス圧力に結合され、実質上単結晶材料で構成された第2の圧力応 答構造体と、 前記第2の圧力応答構造体に結合され、第2のプロセス圧力に対する前記第2 圧力応答構造体の応答に関連する出力を発生する第2の感知手段と、 実質上単結晶材料で作られ、前記第2の圧力応答構造体をトランスミッタ本体 に結合する第2の応力分離部材と、 前記第1および第2のセンサに結合され、第1および第2の圧力差を決定し、 両者間の差圧に関する出力を発生するトランスミッタの出力手段とを具備した差 圧出力用トランスミッタ。 35.前記第1および第2の圧力応答部材は前記プロセス流体に直接露出され 、前記単結晶材料は前記プロセス流体に対して実質上耐腐蝕性を有する請求項3 4に記載のトランスミッタ。 36.感知手段はコンデンサ電極を有し、出力は圧力に関係した容量である請 求項34に記載のトランスミッタ。 37.前記第1および第2の圧力感知構造体は第1および第2の基準圧に結合 され、これらの圧力感知構造体は基準圧とプロセス圧との差に応答する請求項3 4に記載のトランスミッタ。 38.基準圧は一緒に結合され、互いに等しい請求項37に記載のトランスミ ッタ。 39.基準圧はプロセス圧から実質上独立である請求項38に記載のトランス ミッタ。 40.基準圧は事実上真空である請求項37に記載のトランスミッタ。 41.基準圧が気体を介して伝達される請求項37に記載のトランスミッタ。 42.前記単結晶材料はサファイアである請求項34に記載のトランスミッタ 。 43.前記第1および第2の圧力応答構造体は、トランスミッタハウジングに よって実質上同じ温度に保たれる請求項34に記載のトランスミッタ。 44.これらの圧力応答構造体は、トランスミッタハウジング内の予定の温度 勾配の範囲では、予定のレンジ内の温度差に保たれるように隔離されている請求 項34に記載のトランスミッタ。 45.プロセス圧のレンジは1000 psiより大きく、差圧レンジは30 psi よりも小さい請求項34に記載のトランスミッタ。 46.各圧力応答構造体は、その全体にわたって事実上同じ温度に保たれる請 求項34に記載のトランスミッタ。 47.前記圧力応答構造体と応力分離手段との間には接合部があり、前記接合 部は事実上異物を含まない請求項34に記載のトランスミッタ。 48.前記接合部は溶融接合である請求項37に記載のトランスミッタ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/395,778 US5637802A (en) | 1995-02-28 | 1995-02-28 | Capacitive pressure sensor for a pressure transmitted where electric field emanates substantially from back sides of plates |
US08/395,778 | 1995-02-28 | ||
PCT/US1996/002522 WO1996027123A1 (en) | 1995-02-28 | 1996-02-22 | Pressure sensors and pressure transmitters |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11501123A true JPH11501123A (ja) | 1999-01-26 |
JP3723217B2 JP3723217B2 (ja) | 2005-12-07 |
Family
ID=23564468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52635496A Expired - Fee Related JP3723217B2 (ja) | 1995-02-28 | 1996-02-22 | 圧力トランスミッタおよび容量性圧力センサの製造方法 |
Country Status (7)
Country | Link |
---|---|
US (4) | US5637802A (ja) |
EP (1) | EP0812413A1 (ja) |
JP (1) | JP3723217B2 (ja) |
CN (1) | CN1176693A (ja) |
BR (1) | BR9607134A (ja) |
CA (1) | CA2212384A1 (ja) |
WO (1) | WO1996027123A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000506261A (ja) * | 1996-02-27 | 2000-05-23 | ニフォテク・アーエス | 圧力センサ |
JP2003507702A (ja) * | 1999-08-13 | 2003-02-25 | ローズマウント インコーポレイテッド | 差分および/または絶対圧力を測定するための圧力送信機 |
JP2003519377A (ja) * | 2000-01-06 | 2003-06-17 | ローズマウント インコーポレイテッド | 直接接合隔離圧力センサの製造方法および装置 |
JP2003534529A (ja) * | 2000-01-06 | 2003-11-18 | ローズマウント インコーポレイテッド | 金ゲルマニューム隔離ろう付け結合を有するサファイヤ圧力センサ用梁 |
JP2006519997A (ja) * | 2003-03-12 | 2006-08-31 | ローズマウント インコーポレイテッド | マルチセンサを備えた流量装置 |
JP2008511831A (ja) * | 2004-08-27 | 2008-04-17 | アシュクロフト−ナガノ インコーポレーテッド | 圧力測定システムおよび方法 |
JP2013531255A (ja) * | 2010-07-12 | 2013-08-01 | ローズマウント インコーポレイテッド | 相補型デュアル絶対圧力センサを有する差圧トランスミッタ |
WO2014155926A1 (ja) * | 2013-03-26 | 2014-10-02 | 株式会社デンソー | 圧力センサ |
JP2015520400A (ja) * | 2012-06-19 | 2015-07-16 | ローズマウント インコーポレイテッド | 圧力センサを有する差圧伝送器 |
JP2016526679A (ja) * | 2013-06-28 | 2016-09-05 | ローズマウント インコーポレイテッド | 高保全性プロセス流体圧力プローブ |
JP2017509885A (ja) * | 2014-03-14 | 2017-04-06 | ローズマウント インコーポレイテッド | 腐蝕レート計測システム |
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JP2000012723A (ja) | 1998-06-23 | 2000-01-14 | Nitto Denko Corp | 回路基板の実装構造体およびそれに用いる多層回路基板 |
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- 1996-02-22 EP EP96906624A patent/EP0812413A1/en not_active Withdrawn
- 1996-02-22 JP JP52635496A patent/JP3723217B2/ja not_active Expired - Fee Related
- 1996-02-22 CN CN96192225.7A patent/CN1176693A/zh active Pending
- 1996-02-22 WO PCT/US1996/002522 patent/WO1996027123A1/en not_active Application Discontinuation
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1997
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1999
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Cited By (12)
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JP2000506261A (ja) * | 1996-02-27 | 2000-05-23 | ニフォテク・アーエス | 圧力センサ |
JP2003507702A (ja) * | 1999-08-13 | 2003-02-25 | ローズマウント インコーポレイテッド | 差分および/または絶対圧力を測定するための圧力送信機 |
JP2003519377A (ja) * | 2000-01-06 | 2003-06-17 | ローズマウント インコーポレイテッド | 直接接合隔離圧力センサの製造方法および装置 |
JP2003534529A (ja) * | 2000-01-06 | 2003-11-18 | ローズマウント インコーポレイテッド | 金ゲルマニューム隔離ろう付け結合を有するサファイヤ圧力センサ用梁 |
JP2006519997A (ja) * | 2003-03-12 | 2006-08-31 | ローズマウント インコーポレイテッド | マルチセンサを備えた流量装置 |
JP2008511831A (ja) * | 2004-08-27 | 2008-04-17 | アシュクロフト−ナガノ インコーポレーテッド | 圧力測定システムおよび方法 |
JP2013531255A (ja) * | 2010-07-12 | 2013-08-01 | ローズマウント インコーポレイテッド | 相補型デュアル絶対圧力センサを有する差圧トランスミッタ |
JP2015520400A (ja) * | 2012-06-19 | 2015-07-16 | ローズマウント インコーポレイテッド | 圧力センサを有する差圧伝送器 |
WO2014155926A1 (ja) * | 2013-03-26 | 2014-10-02 | 株式会社デンソー | 圧力センサ |
JP2014190746A (ja) * | 2013-03-26 | 2014-10-06 | Denso Corp | 圧力センサ |
JP2016526679A (ja) * | 2013-06-28 | 2016-09-05 | ローズマウント インコーポレイテッド | 高保全性プロセス流体圧力プローブ |
JP2017509885A (ja) * | 2014-03-14 | 2017-04-06 | ローズマウント インコーポレイテッド | 腐蝕レート計測システム |
Also Published As
Publication number | Publication date |
---|---|
CA2212384A1 (en) | 1996-09-06 |
US6089097A (en) | 2000-07-18 |
US6079276A (en) | 2000-06-27 |
BR9607134A (pt) | 1997-11-25 |
EP0812413A1 (en) | 1997-12-17 |
JP3723217B2 (ja) | 2005-12-07 |
US6082199A (en) | 2000-07-04 |
CN1176693A (zh) | 1998-03-18 |
US5637802A (en) | 1997-06-10 |
WO1996027123A1 (en) | 1996-09-06 |
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