JP2019516105A - 透明または部分的に透明な容器における液位を検出するための装置及び方法 - Google Patents
透明または部分的に透明な容器における液位を検出するための装置及び方法 Download PDFInfo
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- G01F23/2927—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means for several discrete levels, e.g. with more than one light-conducting sensing element
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Abstract
Description
本出願は、米国特許出願第62/331,117号(2016年5月3日に出願)、発明の名称「APPARATUS AND METHOD FOR DETECTING LIQUID LEVEL IN A CLEAR OR PARTIALLY CLEAR CONTAINER」に対して優先権を主張する。なおこの文献の内容は、本明細書において参照によりその全体において取り入れられている。
Claims (20)
- フィルタトラップ装置であって、
フィルタからの液滴を液体内容物として蓄積するように構成されたトラップボウルであって、透明な円周プリズムを含み、前記円周プリズムは、前記トラップボウルの円周内面を形成する面を有し、前記面は、ガスが前記円周内面に接触するときに第1の全反射角を有し、前記液体内容物が前記円周内面に接触するときに第2の全反射角を有する、前記トラップボウルと、
前記面に入射角で入射する光ビームを放出するように構成された光源と、
受光器であって、前記入射角によって、前記面が前記第1の全反射角を有するときに前記光ビームの反射が生じて前記受光器に当たり、前記面が前記第2の全反射角を有するときに前記光ビームの屈折が生じて前記受光器を外す、前記受光器と、を含む前記フィルタトラップ装置。 - さらに前記フィルタを含み、
前記フィルタは進入通路、退出通路、及び中間通路を含み、
前記フィルタは、前記進入通路において治療ガスのサンプルを受け取り、前記治療ガスから前記液滴を除去して、フィルタリング済み治療ガスを形成し、前記中間通路を通して前記液滴を送出し、前記フィルタリング済み治療ガスを前記ガス退出通路から出力するように構成されている、請求項1に記載のフィルタトラップ装置。 - 前記面は上面であり、
前記トラップボウルの前記円周内面は上部円周内面であり、
前記透明な円周プリズムはさらに下面を含み、
前記下面は前記トラップボウルの下部円周内面を形成し、
前記上面と前記下面とは、前記トラップボウルの周りで円周に外側に開く夾角を形成する、請求項1に記載のフィルタトラップ装置。 - 前記上面と前記下面とは頂点で交差し、前記頂点は前記トラップボウルの周りに円周であり、
前記夾角は、前記頂点から外側に延びる基準二等分線の周りに対称的に配置される、請求項3に記載のフィルタトラップ装置。 - 前記光源は、前記光ビームをコリメート光ビームとして放出し、前記コリメート光ビームを前記基準二等分線にほぼ平行な方向に放出するように構成されている、請求項4に記載のフィルタトラップ装置。
- 前記トラップボウルの回転配向とは関係なく、前記入射角によって、前記面が前記第1の全反射角を有するときに前記光ビームの反射が生じて前記受光器に当たり、前記面が前記第2の全反射角を有するときに前記光ビームの屈折が生じて前記受光器を外す、請求項5に記載のフィルタトラップ装置。
- 前記基準二等分線は、前記トラップボウルの周りに円周で前記頂点を含む基準円錐内で延びる、請求項5に記載のフィルタトラップ装置。
- 前記夾角は約90度である請求項5に記載のフィルタトラップ装置。
- 前記入射角は約45度である請求項8に記載のフィルタトラップ装置。
- 前記透明な円周プリズムはさらに光ビーム受光面を含み、
前記コリメート光ビームは前記光ビーム受光面に入射点で入射し、
前記光ビーム受光面に対して前記入射点において接線方向にある基準面が、前記コリメート光ビームに垂直である、請求項5に記載の基準トラップ装置。 - 前記夾角は約90度であり、前記入射角は約45度であり、
前記光ビーム受光面は、前記トラップボウルの外面の周りで円周に延びる斜面である、請求項10に記載のフィルタトラップ装置。 - さらに前記フィルタを含み、
前記フィルタは、進入通路、退出通路、及び中間通路を含み、
前記フィルタは、前記進入通路において治療ガスのサンプルを受け取り、前記治療ガスから前記液滴を除去して、フィルタリング済み治療ガスを形成し、前記中間通路を通して前記液滴を送出し、前記フィルタリング済み治療ガスを前記ガス退出通路から出力するように構成されている、請求項1に記載のフィルタトラップ装置。 - フィルタトラップ装置であって、
フィルタからの液滴を液体内容物として蓄積するように構成されたトラップボウルであって、前記トラップボウルは、垂直に延びる部分と、透明な垂直プリズムとを含み、前記透明な垂直プリズムは、前記部分の内容物に対して面する垂直透明表面を形成する面を含み、前記面は、前記部分の内容物がガスであるときに第1の全反射角を有し、前記前記部分の内容物が前記液体内容物であるときに第2の全反射角を有する、前記トラップボウルと、
前記面に入射角で入射する光ビームを放出するように構成された光源と、
受光器であって、前記入射角によって、前記面が前記第1の全反射角を有するときに前記光ビームの反射が生じて前記受光器に当たり、前記面が前記第2の全反射角を有するときに前記光ビームの屈折が生じて前記受光器を外す、前記受光器と、を含む前記フィルタトラップ装置。 - 前記受光器は光放出器/受信器の受信器要素であり、前記光源は前記光放出器/受信器の放出器要素である、請求項13に記載のフィルタトラップ装置。
- 調整可能な放出器/受信器支持部をさらに含み、前記調整可能な放出器/受信器支持部は、前記光放出器/受信器に取り付けられるように構成された支持部要素と、前記光放出器/受信器を前記垂直方向の選択的高さに支持する選択的に駆動される上昇支持部と、を含む請求項14に記載のフィルタトラップ装置。
- 前記面は第1の面であり、前記垂直透明表面は第1の垂直透明表面であり、
前記透明な垂直プリズムはさらに第2の面を含み、
前記第2の面は、前記部分の前記内容物に対して面する第2の垂直透明表面を形成し、前記第2の面は、前記部分の前記内容物が前記ガスであるときに前記第1の全反射角を有し、前記部分の前記内容物が前記液体内容物であるときに前記第2の全反射角を有する、請求項13に記載のフィルタトラップ装置。 - 前記第1の面と前記第2の面とは頂点で交差し、前記頂点は垂直であり、
前記夾角は、前記頂点から外側に半径方向に延びる基準二等分線の周りに対称的に配置される、請求項16に記載のフィルタトラップ装置。 - 前記光源は、前記光ビームをコリメート光ビームとして放出し、前記コリメート光ビームを前記基準二等分線にほぼ平行な方向に放出するように構成されている、請求項17に記載のフィルタトラップ装置。
- フィルタトラップ装置であって、
フィルタからの液滴を液体内容物として蓄積するように構成されたトラップボウルであって、前記トラップボウルは、垂直に延びる透明な円形部分を含み、前記透明な円形部分は、光学屈折率を有する材料で形成されている、前記トラップボウルと、
前記透明な円形部分の外面に入射点で入射する光ビームを放出するように構成されたオフセット光源であって、前記光ビームは、前記入射点において接線方向にある基準線に平行なベクトル成分を有し、前記入射点における前記基準線に垂直なベクトル成分を有する、前記オフセット光源と、
オフセット受光器であって、
前記光学屈折率の選択は、ガス内容物が前記透明な部分に接触するときに前記光ビームは第1の経路に沿って屈折され、前記液体内容物が前記透明な部分に接触するときに前記光ビームは第2の経路に沿って屈折されるように行われ、
前記第1の経路は前記受光器に入射し、前記第2の経路は前記受光器を外す、前記オフセット受光器と、を含む前記フィルタトラップ装置。 - 治療ガス吸入治療のための方法であって、
治療ガス送達システムを電源オンにし、それに応じて、トラップボウルが適切に取り付けられているか否かを、第1の光学センサ出力に基づいて判定することと、
前記トラップボウルが適切に取り付けられていると判定したら、前記トラップボウルに残存容量があるか否かを、少なくとも部分的に第2の光学センサ出力に基づいて判定することと、
前記トラップボウルが適切に取り付けられていると判定し、それととともに、前記トラップボウルに残存容量があると判定したら、サンプルガスを受け取り、前記サンプルガスから液体をフィルタリングし、前記フィルタリングの結果を前記フィルタリングの出力によって送出することと、を含む前記方法。
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