JP4699128B2 - Analysis equipment - Google Patents
Analysis equipmentInfo
- Publication number
- JP4699128B2 JP4699128B2 JP2005221956A JP2005221956A JP4699128B2 JP 4699128 B2 JP4699128 B2 JP 4699128B2 JP 2005221956 A JP2005221956 A JP 2005221956A JP 2005221956 A JP2005221956 A JP 2005221956A JP 4699128 B2 JP4699128 B2 JP 4699128B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- halogen lamp
- analyzer
- change
- rate
- 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.)
- Active
Links
- 229910052736 halogen Inorganic materials 0.000 claims description 59
- 150000002367 halogens Chemical class 0.000 claims description 57
- 238000005259 measurement Methods 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 13
- 230000031700 light absorption Effects 0.000 claims description 11
- 208000002925 dental caries Diseases 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 125000005843 halogen group Chemical group 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- -1 tungsten halide Chemical class 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
この発明は、ハロゲンランプを光源とする分析装置に関するものである。 The present invention relates to an analyzer using a halogen lamp as a light source.
ハロゲンランプと白熱電球とはいずれもタングステンフィラメントを用いているが、一般的にハロゲンランプの方が寿命が長い。これは、ハロゲンサイクルと呼ばれる現象に起因する。ハロゲンサイクルとは、ハロゲンランプのフィラメントに通電するとフィラメントを構成するタングステンが蒸発するが、蒸発したタングステンは電球内に封入されたハロゲンと反応して、ハロゲン化タングステンを形成し、再びフィラメント上で固体化し、この循環を繰り返す現象をいう。このため、ハロゲンランプは断線が起こりにくく長寿命であり、光吸収法を用いた分析装置の光源等に好適に用いられている。 Both halogen lamps and incandescent bulbs use tungsten filaments, but generally halogen lamps have a longer life. This is due to a phenomenon called a halogen cycle. In the halogen cycle, the tungsten constituting the filament evaporates when the filament of the halogen lamp is energized, but the evaporated tungsten reacts with the halogen enclosed in the bulb to form tungsten halide, and again solid on the filament This is a phenomenon that repeats this cycle. For this reason, the halogen lamp is less likely to cause disconnection and has a long life, and is suitably used as a light source of an analyzer using a light absorption method.
しかしながら、ハロゲン化タングステンはフィラメントの温度の低い部分（フィラメントの太い部分）に集まる性質があり、必ずしも元の蒸発した部分（フラメントが細く温度が高い部分）に戻らないため、フィラメントの太さは次第に不均一になり、やがて断線する。 However, tungsten halide has the property of gathering in the low temperature part of the filament (the thick part of the filament) and does not necessarily return to the original evaporated part (the part where the fragment is thin and the temperature is high), so the thickness of the filament gradually increases. It becomes uneven and eventually breaks.
白熱電球はフィラメントを構成するタングステンが蒸発すると電球の壁面内部に付着し黒化するとともに、フィラメントが徐々に細くなり電流が流れにくくなる結果光量が減少するので、その寿命は光量の減退から予測することができる。また、フィラメントを使用しないキセノンランプでも同様に光量の減退から寿命を予測することが可能である（特許文献１）。 Incandescent light bulbs are attached to the inside of the bulb wall when the tungsten that forms the filaments evaporates, and the filaments become thinner and the current does not flow easily. be able to. Similarly, a xenon lamp that does not use a filament can predict the life from the decrease in the amount of light (Patent Document 1).
これに対して、ハロゲンランプではハロゲンサイクルの作用でフィラメントが細くなりにくく、タングステンの蒸発によって起こる管壁黒化の発生も殆どなく、寿命末期まで光量が一定である。 On the other hand, in the halogen lamp, the filament is unlikely to be thinned by the action of the halogen cycle, and there is almost no occurrence of tube wall blackening caused by evaporation of tungsten, and the amount of light is constant until the end of its life.
このため、ハロゲンランプは白熱電球等の一般的なランプに比べ、光量低下度合いや光量低下率の変化で寿命を判断することが難しく、従来はハロゲンランプが切れた時点で警報を出して光源を交換することしか対処法はなかった。 For this reason, it is difficult to judge the life of halogen lamps based on changes in the amount of light reduction or the rate of reduction in light intensity compared to general lamps such as incandescent bulbs. The only solution was to replace it.
また、一定の期間が経過したハロゲンランプは断線していなくても定期的に交換するという手段も考えられるが、この方法では、個々の製品ごとに寿命に大きなバラツキのあるハロゲンランプでは、その交換時期を短寿命のものに合わせることになり、手間及びコスト面からかなりの損失が発生するという問題がある。 In addition, it is possible to replace the halogen lamp after a certain period of time even if it is not disconnected. However, in this method, it is necessary to replace halogen lamps that have a large variation in life for each product. There is a problem that considerable loss occurs in terms of labor and cost because the time is adjusted to that of a short life.
そこで本発明は、ハロゲンランプ光源が寿命によって切れる前に、その寿命を予測し、警告を発する分析装置を提供すべく図ったものである。 Accordingly, the present invention is intended to provide an analyzer that predicts the life of a halogen lamp light source before it expires and issues a warning.
本発明者は、ハロゲンランプの寿命（断線）が近づくと光量が大きく上下に変動し不安定になることを見出し、この知見に基づき本発明を完成した。 The present inventor found that the light amount greatly fluctuates up and down and becomes unstable as the halogen lamp life (breakage) approaches, and has completed the present invention based on this finding.
すなわち本発明に係る分析装置は、ハロゲンランプを備えているものであって、 前記ハロゲンランプから射出された光の光量について、ある時点の光量Ｒ１に対する所定時間経過後の光量Ｒ２の変化率（Ｒ２−Ｒ１）／Ｒ１を算出する演算部と、前記変化率が｜（Ｒ２−Ｒ１）／Ｒ１｜＞Ｘとなると警告信号を出力する判定部を備えていることを特徴とする。 That is, the analyzer according to the present invention includes a halogen lamp, and the change rate (R2) of the light amount R2 after a predetermined time has elapsed with respect to the light amount R1 at a certain point in time with respect to the light amount emitted from the halogen lamp. -R1) / R1 and a determination unit that outputs a warning signal when the rate of change is | (R2-R1) / R1 |> X.
図３は寿命（断線）が近いハロゲンランプの光量の一例を示すグラフである。図３に示すように、正常なハロゲンランプではその光量はほぼ一定であるが、寿命が近づくとその光量は単純に減退するのではなく不安定になり上下に大きく変動する。これはハロゲンサイクルの結果、フィラメントの太さが不均一になったことに起因すると考えられる。このため、光量の安定性、即ち所定時間あたりの変化率を指標とすることにより、ハロゲンランプの寿命を予測することが可能となる。 FIG. 3 is a graph showing an example of the light amount of a halogen lamp having a near life (disconnection). As shown in FIG. 3, the light amount of a normal halogen lamp is substantially constant, but when the lifetime approaches, the light amount does not simply decrease but becomes unstable and greatly fluctuates up and down. This is considered to be due to the non-uniform filament thickness as a result of the halogen cycle. For this reason, it is possible to predict the life of the halogen lamp by using the stability of the light quantity, that is, the rate of change per predetermined time as an index.
このような本発明に係る分析装置によれば、光量の所定時間あたりの変化率を指標としてハロゲンランプの寿命を予測することにより、単なる光量の低下率では寿命を判断することが難しいハロゲンランプの寿命を的確に検知することができる。また、個々のハロゲンランプ毎に寿命を判定するので、個々の製品毎に寿命に差のあるハロゲンランプを寿命が来るまで使うことができ、一律にハロゲンランプの交換時期を設定するよりコストの削減につながる。また、連続使用している際にハロゲンランプが突然断線することを防げ、ハロゲンランプが寿命を迎える前の適当な時期に交換することが可能となる。 According to such an analyzer according to the present invention, by predicting the life of a halogen lamp using the rate of change of the light quantity per predetermined time as an index, it is difficult to determine the life of a halogen lamp with a simple light quantity reduction rate. The life can be accurately detected. In addition, because the lifetime is determined for each individual halogen lamp, it is possible to use halogen lamps with different lifetimes for each individual product until the end of the lifetime, reducing costs compared to setting a uniform halogen lamp replacement period. Leads to. Further, it is possible to prevent the halogen lamp from being suddenly disconnected during continuous use, and to replace it at an appropriate time before the halogen lamp reaches the end of its life.
なお、演算部で算出する光量の所定時間あたりの変化率を（Ｒ２−Ｒ１）／Ｒ１×１００とし、判定部での基準値は±ｘ（ｘ＝１００Ｘ）としてもよい。 Note that the rate of change of the light amount calculated by the calculation unit per predetermined time may be (R2−R1) / R1 × 100, and the reference value in the determination unit may be ± x (x = 100X).
本発明に係る分析装置は、測定対象溶液に光を照射するハロゲンランプからなる光源と、この溶液を透過した光の分光スペクトルを検出する検出器とを備えている、光吸収法を利用した分析装置に適用できる。図４は、光吸収法の測定結果の一例を示すグラフであるが、光吸収法では、図４に示すように、測定対象溶液を透過していないリファレンス光の光量と、測定対象溶液を透過したサンプル光の光量を測定し、これらの光量の比からセル内の測定対象溶液の吸光度を算出する。 An analysis apparatus according to the present invention comprises a light source comprising a halogen lamp that irradiates light to a solution to be measured, and a detector that detects a spectral spectrum of the light that has passed through the solution, and uses an optical absorption method for analysis. Applicable to equipment. FIG. 4 is a graph showing an example of the measurement result of the light absorption method. In the light absorption method, as shown in FIG. 4, the amount of reference light that does not pass through the measurement target solution and the measurement target solution are transmitted. The amount of sample light is measured, and the absorbance of the solution to be measured in the cell is calculated from the ratio of these amounts of light.
本発明に係る分析装置が光吸収法を用いたものである場合、リファレンス光は、サンプル光とは異なり、測定対象溶液を透過しないため測定対象溶液の変化の影響を受けないので、前記ハロゲンランプの光量の変化率は、リファレンス光の光量に基づいて算出するのが好ましい。 When the analyzer according to the present invention uses a light absorption method, unlike the sample light, the reference light does not pass through the measurement target solution and is not affected by the change in the measurement target solution. It is preferable to calculate the change rate of the light amount based on the light amount of the reference light.
光吸収法を用いる分析装置が連続測定を行っている場合、通常一度リファレンス光の光量を測定するとその値を所定時間使用して吸光度を算出するが、前記判定部が警告信号を出力した後は、分析の精度を保つために、リファレンス光の光量を測定する時間間隔が短くなるように、例えば１〜６０分の間で変更するように構成してあってもよい。 When the analyzer using the light absorption method is performing continuous measurement, when the light amount of the reference light is measured once, the value is used for a predetermined time to calculate the absorbance, but after the determination unit outputs a warning signal, In order to maintain the accuracy of the analysis, the time interval for measuring the light amount of the reference light may be changed , for example, between 1 and 60 minutes.
分析装置が長期間の連続測定を行っている場合に、光源が突然寿命を迎えると測定の中断を余儀なくされ、特にその分析装置が分析結果をフィードバックするシステムの一部に組み込まれている場合、影響はシステム全体に及ぶ。このため、本発明は特に連続測定を行う分析装置に好ましく適用される。 When the analyzer performs long-term continuous measurement, if the light source suddenly reaches the end of its life, the measurement must be interrupted, especially if the analyzer is part of a system that feeds back analysis results. The impact is on the entire system. For this reason, the present invention is particularly preferably applied to an analyzer that performs continuous measurement.
このように本発明によれば、ハロゲンランプの光量の所定時間あたりの変化率を指標とすることにより、ハロゲンランプの寿命を的確に検知することができる。 Thus, according to the present invention, the lifetime of the halogen lamp can be accurately detected by using the rate of change per unit time of the light amount of the halogen lamp as an index.
以下、本発明の一実施形態に係る分析装置１を図面を参照して説明する。 Hereinafter, an analyzer 1 according to an embodiment of the present invention will be described with reference to the drawings.
本実施形態に係る分析装置１は、図１に示すように、本装置に導入された測定対象溶液Ｓから気泡Ｂを分離する脱泡槽２と、気泡Ｂが分離された測定対象溶液Ｓを流通させる主流路９ａと、測定対象溶液Ｓから分離した気泡Ｂ（厳密には多少の測定対象溶液Ｓも含まれている）を流通させる副流路９ｂと、主流路９ａ上に設けられた分析系と、分析系に接続されてハロゲンランプの寿命を監視する機器群とを備えている。 As shown in FIG. 1, the analyzer 1 according to the present embodiment includes a defoaming tank 2 that separates the bubbles B from the measurement target solution S introduced into the apparatus, and a measurement target solution S from which the bubbles B are separated. The main flow path 9a to be circulated, the sub-flow path 9b to circulate the bubbles B separated from the measurement target solution S (strictly, some measurement target solution S is included), and the analysis provided on the main flow path 9a And a group of devices connected to the analysis system for monitoring the life of the halogen lamp.
各部を詳述する。前記脱泡槽２は、測定対象溶液Ｓの流速及び粘度等の特性に従って適宜の容量を有する密閉容器からなる。前記脱泡槽２で、測定対象溶液Ｓから気泡Ｂが分離され、気泡Ｂが分離された測定対象溶液Ｓは主流路９ａへ、一方分離された気泡Ｂは副流路９ｂへそれぞれ流通される。 Each part will be described in detail. The defoaming tank 2 is composed of a sealed container having an appropriate capacity in accordance with characteristics such as the flow rate and viscosity of the solution S to be measured. In the defoaming tank 2, the bubbles B are separated from the measurement target solution S, the measurement target solution S from which the bubbles B have been separated flows into the main flow path 9a, and the separated bubbles B flow into the sub flow path 9b. .
主流路９ａ上には、光吸収法を用いた分析系が設けてある。当該分析系は具体的には、主流路９ａを流通する測定対象溶液Ｓが連続してその内部を通過するセル４に、光源であるハロゲンランプ３から光を照射し、セル４を透過した光の分光スペクトルを検出器５で検出し、セル４内の測定対象溶液Ｓによる光の吸収度合いを測定して測定対象溶液Ｓの成分を分析するように構成してある。一般的に、測定対象溶液Ｓを透過した光をサンプル光、測定対象溶液Ｓを透過していない光をリファレンス光と呼び、この２つの光量の比から、測定対象溶液Ｓによる光の吸収度合い（吸光度）が算出される。このため、セル４はサンプル光測定を行うためのサンプル光測定位置とリファレンス光測定を行うためのリファレンス光測定位置とに移動自在に構成されている（例えば特開２００２−８２０５０号参照）。 An analysis system using a light absorption method is provided on the main channel 9a. Specifically, the analysis system irradiates the cell 4 through which the measurement target solution S flowing through the main flow path 9a continuously passes through the cell 4 with light from the halogen lamp 3 serving as a light source, and transmits the light transmitted through the cell 4. Is detected by the detector 5, the degree of light absorption by the measurement target solution S in the cell 4 is measured, and the components of the measurement target solution S are analyzed. In general, light that has passed through the measurement target solution S is referred to as sample light, and light that does not pass through the measurement target solution S is referred to as reference light. From the ratio of these two light amounts, the degree of light absorption by the measurement target solution S ( Absorbance) is calculated. For this reason, the cell 4 is configured to be movable between a sample light measurement position for performing sample light measurement and a reference light measurement position for performing reference light measurement (see, for example, JP-A-2002-82050).
前記分析系には、ハロゲンランプの寿命を監視する機器群が接続されており、具体的には、検出器５で検出されたリファレンス光の光量の所定時間（例えば１０分間）あたりの変化率を算出する演算部６と、前記変化率が一定の範囲を超えている場合は、警告信号を出力する判定部７と、前記警告信号を受信すると警報を発する警報装置８とが設けてある。 A device group for monitoring the life of the halogen lamp is connected to the analysis system. Specifically, the rate of change per predetermined time ( for example, 10 minutes ) of the amount of reference light detected by the detector 5 is calculated. There are provided a calculation unit 6 to calculate, a determination unit 7 that outputs a warning signal when the rate of change exceeds a certain range, and an alarm device 8 that issues an alarm when the warning signal is received.
演算部６においては、サンプル光は測定対象溶液Ｓの変動によって変化するので、測定対象溶液Ｓを透過しないリファレンス光を用いて光量の所定時間あたりの変化率を算出する。図３に示すように、ハロゲンランプ３からの光量が安定している場合は、リファレンス光量はほぼ一定である。しかしながら、ハロゲンランプ３が劣化して寿命が近づくと、リファレンス光量は不安定になり上下に大きく変動する。本実施形態では、演算部６は、ある時点でのリファレンス光量測定値をＲ１、所定時間経過した後の次の測定時でのリファレンス光量測定値をＲ２としたときの変化率（Ｒ２−Ｒ１）／Ｒ１を算出する。ここで、リファレンス光量測定の時間間隔は状況に合わせて適宜変更することができ、特に限定されない。 In the calculation unit 6, since the sample light changes due to the variation of the measurement target solution S, the change rate of the light quantity per predetermined time is calculated using the reference light that does not pass through the measurement target solution S. As shown in FIG. 3, when the light amount from the halogen lamp 3 is stable, the reference light amount is substantially constant. However, as the halogen lamp 3 deteriorates and nears its end of life, the reference light amount becomes unstable and fluctuates up and down. In this embodiment, the calculation unit 6 has a change rate (R2−R1) when R1 is a reference light amount measurement value at a certain time and R2 is a reference light amount measurement value at the next measurement after a predetermined time has elapsed. / R1 is calculated. Here, the time interval of the reference light amount measurement can be appropriately changed according to the situation, and is not particularly limited.
そして、判定部７では、｜（Ｒ２−Ｒ１）／Ｒ１｜＞Ｘのとき、つまり光量の変化率の絶対値が規定の値Ｘより大きかったときに、ハロゲンランプ３の寿命が近づいていると判定し、警告信号を出力する。ここで、Ｘの値は、正の数であるがハロゲンランプ３の種類や使用条件によって異なり、限定されない。なお、ハロゲンランプに通電した直後は光量が不安定であるので、通電後光量が安定するまでの例えば３０分間は警告信号を出力しないように判定部７を設定するのが好ましい。 In the determination unit 7, when | (R 2 −R 1) / R 1 |> X, that is, when the absolute value of the change rate of the light amount is larger than the specified value X, the life of the halogen lamp 3 is approaching. Determine and output a warning signal. Here, the value of X is a positive number, but varies depending on the type of halogen lamp 3 and usage conditions, and is not limited. Since the light quantity is unstable immediately after energizing the halogen lamp, it is preferable to set the determination unit 7 so as not to output a warning signal for, for example, 30 minutes until the light quantity after the energization is stabilized.
演算部６及び判定部７は、マイクロコンピュータ１０を用いて構成している。このマイクロコンピュータ１０は、ＣＰＵ、内部メモリ、ＡＤ変換器等を有する。そして、内部メモリの所定領域に設定したプログラムに従ってＣＰＵやその周辺機器を作動させることにより、演算部６及び判定部７として機能するように構成してある。かかるマイクロコンピュータ１０は、汎用のものであってもよく、専用のものであってもよい。 The calculation unit 6 and the determination unit 7 are configured using a microcomputer 10. The microcomputer 10 includes a CPU, an internal memory, an AD converter, and the like. And it is comprised so that it may function as the calculating part 6 and the determination part 7 by operating CPU and its peripheral device according to the program set to the predetermined area | region of internal memory. The microcomputer 10 may be a general-purpose computer or a dedicated computer.
警報装置８は、ＬＥＤ等の発光体や、ブザーやスピーカ等の音声出力体等からなり、判定部７から警告信号を受信すると、ハロゲンランプから射出された光の光量の所定時間あたりの変化率が一定の範囲を超えていること、すなわちハロゲンランプの寿命が近いことを、光や音でオペレータ等に警告するものである。 The alarm device 8 includes a light emitter such as an LED, an audio output body such as a buzzer or a speaker, and the rate of change per predetermined time of the light amount emitted from the halogen lamp when receiving a warning signal from the determination unit 7. Is warned to the operator or the like by light or sound that the lamp is over a certain range, that is, the lifetime of the halogen lamp is near.
分析系における分析が終了した測定対象溶液Ｓは、主流路９ａを流通し、脱泡槽２において分離され副流路９ｂを流通した気泡Ｂとともに、分析装置１外に排出される。 The solution S to be measured, which has been analyzed in the analysis system, flows through the main flow path 9a and is discharged out of the analysis apparatus 1 together with the bubbles B separated in the defoaming tank 2 and flowed through the sub flow path 9b.
本実施形態の分析装置１では、図２に示すように、ハロゲンランプ３の寿命が近づくとリファレンス光量は上下に大きく変動し、所定時間あたりの変化率（Ｒ２−Ｒ１）／Ｒ１はたびたび所定の値±Ｘを超える。変化率（Ｒ２−Ｒ１）／Ｒ１が所定の値±Ｘを超えると、それを認識した判定部７が警告信号を出力し、それを受信した警報装置８が光や音で警告を発する。 In the analyzer 1 of this embodiment, as shown in FIG. 2, when the life of the halogen lamp 3 approaches, the reference light amount greatly fluctuates up and down, and the rate of change per predetermined time (R2-R1) / R1 is often a predetermined value. Exceed value ± X. When the rate of change (R2-R1) / R1 exceeds a predetermined value ± X, the determination unit 7 that recognizes the change outputs a warning signal, and the alarm device 8 that has received the warning signal issues a warning with light or sound.
このような本実施形態によれば、警報装置８が頻繁に警報を発するようになると、オペレータ等はハロゲンランプ３の寿命が近いことを察知できるので、ハロゲンランプ３が突然断線して寿命を迎える前にハロゲンランプ３を交換することが可能となる。また、光量の所定時間あたりの変化率を指標としてハロゲンランプ３の寿命を予測することにより、個々の製品毎に寿命に差のあるハロゲンランプ３を寿命が来るまで使うことができ、コストの削減にもつながる。 According to this embodiment, when the alarm device 8 frequently issues an alarm, the operator or the like can detect that the life of the halogen lamp 3 is near, so that the halogen lamp 3 is suddenly disconnected and reaches its life. It becomes possible to replace the halogen lamp 3 before. In addition, by predicting the lifetime of the halogen lamp 3 using the rate of change of light intensity per predetermined time as an index, it is possible to use the halogen lamp 3 having a different lifetime for each product until the end of the lifetime, thereby reducing costs. It also leads to.
なお、本発明は前記実施形態に限られるものではない。例えば、警報装置８は分析装置１に備わっていなくてもよく、外部の警報装置を本発明の分析装置１に接続して、警報を発するようにしてもよい。 The present invention is not limited to the above embodiment. For example, the alarm device 8 may not be provided in the analyzer 1, and an alarm device may be issued by connecting an external alarm device to the analyzer 1 of the present invention.
また、本発明に係る分析装置は光吸収法を用いた分析装置に限定されず、ハロゲンランプを光源とするものであればいかなる種類の分析装置であってもよい。 Further, the analyzer according to the present invention is not limited to an analyzer using a light absorption method, and may be any type of analyzer as long as it uses a halogen lamp as a light source.
更に判定部７が一度警告信号を出力した後は、検出部５でのリファレンス光の光量を測定する時間間隔が短くなるように、判定部７が検出器５に測定条件の変更を指示する信号を出力するように構成しても良い。 Further, after the determination unit 7 once outputs the warning signal, the determination unit 7 instructs the detector 5 to change the measurement condition so that the time interval for measuring the light amount of the reference light in the detection unit 5 is shortened. May be output.
本発明に係る分析装置は、更に入力部や、モニタや、プリンタ等を備えていてもよい。 The analysis apparatus according to the present invention may further include an input unit, a monitor, a printer, and the like.
その他、本発明は、その趣旨を逸脱しない範囲で種々の変形が可能であることは言うまでもない。 In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.
本発明によって、ハロゲンランプの断線により操業が突然又は不測に中断されることなく連続した分析が可能となる。 According to the present invention, it is possible to perform continuous analysis without interruption of operation suddenly or unexpectedly due to disconnection of the halogen lamp.
１・・・分析装置
３・・・ハロゲンランプ
６・・・演算部
７・・・判定部
DESCRIPTION OF SYMBOLS 1 ... Analytical apparatus 3 ... Halogen lamp 6 ... Calculation part 7 ... Determination part
Claims (4)
前記ハロゲンランプから射出された光のうち、測定対象に作用していない光の１〜６０分おきに検出された光量について、ある時点において検出された光量Ｒ１に対する１〜６０分経過後において検出された光量Ｒ２の変化率（Ｒ２−Ｒ１）／Ｒ１を算出する演算部と、
前記変化率が｜（Ｒ２−Ｒ１）／Ｒ１｜＞Ｘとなると警告信号を出力する判定部を備えていることを特徴とする分析装置。 An analyzer equipped with a halogen lamp,
Chi caries light emitted from the halogen lamp, measuring the detected amount of light to the 1-60 minute intervals of light not applied to the constant target, after lapse of 1 to 60 minutes for the detected amount of light R1 at some point An arithmetic unit for calculating a rate of change (R2-R1) / R1 of the detected light amount R2,
The rate of change | (R2-R1) / R1 |> X and the analyzer, characterized in that it comprises a determination unit for outputting a warning signal.
１〜６０分おきに検出された前記リファレンス光の光量について、ある時点において検出された光量Ｒ１に対する１〜６０分経過後において検出された光量Ｒ２の変化率（Ｒ２−Ｒ１）／Ｒ１を算出する演算部と、
前記変化率が｜（Ｒ２−Ｒ１）／Ｒ１｜＞Ｘとなると警告信号を出力する判定部を備えていることを特徴とする分析装置。 A light source comprising a halogen lamp for emitting light to the measurement target solution, of the light emitted from the halogen lamp, the light intensity of the reference light that is not transmitted through the sample light and the test liquid transmitted through the test liquid An analyzer using a light absorption method comprising a detector to detect,
For the light amount of the reference light detected every 1 to 60 minutes, the rate of change (R2−R1) / R1 of the light amount R2 detected after the lapse of 1 to 60 minutes with respect to the light amount R1 detected at a certain time is calculated. An arithmetic unit;
The rate of change | (R2-R1) / R1 |> X and the output warning signal determining unit analyzing apparatus characterized by there Bei Ete a.
前記ハロゲンランプから射出された光のうち、測定対象に作用していない光の光量を１〜６０分ごとに測定する工程と、
測定された前記光量について、ある時点において測定された光量Ｒ１に対する１〜６０分経過後において測定された光量Ｒ２の変化率（Ｒ２−Ｒ１）／Ｒ１を算出する工程と、
前記変化率が｜（Ｒ２−Ｒ１）／Ｒ１｜＞Ｘとなると警告を発する工程と、を備えていることを特徴とする分析装置に搭載されたハロゲンランプの寿命予測方法。 A method for predicting the life of a halogen lamp for an analyzer equipped with a halogen lamp,
The halogen lamp Chi caries light emitted from, a step of measuring the quantity of light does not act on the measurement target every 1 to 60 minutes,
A step of calculating a rate of change (R2-R1) / R1 of the light quantity R2 measured after 1 to 60 minutes has elapsed with respect to the light quantity R1 measured at a certain time point with respect to the measured light quantity;
Life prediction method for a halogen lamp mounted in the analyzer, characterized in that it comprises a and a step of issuing a warning and a> X | the change ratio | (R2-R1) / R1 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005221956A JP4699128B2 (en) | 2005-07-29 | 2005-07-29 | Analysis equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005221956A JP4699128B2 (en) | 2005-07-29 | 2005-07-29 | Analysis equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007040708A JP2007040708A (en) | 2007-02-15 |
| JP4699128B2 true JP4699128B2 (en) | 2011-06-08 |
Family
ID=37798853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005221956A Active JP4699128B2 (en) | 2005-07-29 | 2005-07-29 | Analysis equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4699128B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4723439B2 (en) * | 2006-08-31 | 2011-07-13 | 株式会社日立ハイテクノロジーズ | Chemical analyzer |
| WO2020148842A1 (en) * | 2019-01-16 | 2020-07-23 | 株式会社島津製作所 | Absorbance detector, chromatograph, and method for managing light source replacement time |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278438U (en) * | 1988-12-07 | 1990-06-15 | ||
| JPH056355U (en) * | 1991-07-12 | 1993-01-29 | 横河電機株式会社 | Lamp life detector |
| JPH06229785A (en) * | 1993-01-29 | 1994-08-19 | Nippon Seiki Co Ltd | Dimmer type display unit |
| JPH07320880A (en) * | 1994-05-20 | 1995-12-08 | Nippon Avionics Co Ltd | Lighting power supply |
| JPH0821795A (en) * | 1994-07-06 | 1996-01-23 | Yokogawa Electric Corp | Turbidity meter |
| JPH09297060A (en) * | 1996-05-07 | 1997-11-18 | Yokogawa Electric Corp | Lamp lifetime predicting device |
| JPH1038793A (en) * | 1996-07-23 | 1998-02-13 | Chino Corp | Optical measuring instrument |
| JPH10185686A (en) * | 1996-12-26 | 1998-07-14 | Shimadzu Corp | Spectrophotometer |
| JP2000030875A (en) * | 1998-07-10 | 2000-01-28 | Mabuchi System Engineering:Kk | Illumination instantaneous switching device |
| JP2002082050A (en) * | 2000-09-08 | 2002-03-22 | Horiba Ltd | Spectrum analyzer |
-
2005
- 2005-07-29 JP JP2005221956A patent/JP4699128B2/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278438U (en) * | 1988-12-07 | 1990-06-15 | ||
| JPH056355U (en) * | 1991-07-12 | 1993-01-29 | 横河電機株式会社 | Lamp life detector |
| JPH06229785A (en) * | 1993-01-29 | 1994-08-19 | Nippon Seiki Co Ltd | Dimmer type display unit |
| JPH07320880A (en) * | 1994-05-20 | 1995-12-08 | Nippon Avionics Co Ltd | Lighting power supply |
| JPH0821795A (en) * | 1994-07-06 | 1996-01-23 | Yokogawa Electric Corp | Turbidity meter |
| JPH09297060A (en) * | 1996-05-07 | 1997-11-18 | Yokogawa Electric Corp | Lamp lifetime predicting device |
| JPH1038793A (en) * | 1996-07-23 | 1998-02-13 | Chino Corp | Optical measuring instrument |
| JPH10185686A (en) * | 1996-12-26 | 1998-07-14 | Shimadzu Corp | Spectrophotometer |
| JP2000030875A (en) * | 1998-07-10 | 2000-01-28 | Mabuchi System Engineering:Kk | Illumination instantaneous switching device |
| JP2002082050A (en) * | 2000-09-08 | 2002-03-22 | Horiba Ltd | Spectrum analyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007040708A (en) | 2007-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1605251B1 (en) | Gas sensor arrangement with reduced settling time | |
| US20040051043A1 (en) | Method for detecting a gas using an infrared gas analyser and gas analyser suitable for carrying out said method | |
| EP3312814A1 (en) | Fire alarm system and testing method therefor | |
| US20030138962A1 (en) | Analyzing method of a blood coagulation reaction | |
| JP6413759B2 (en) | Optical analyzer | |
| US20130282303A1 (en) | Method for determining a condition indicator of an analysis apparatus | |
| JP2007212459A (en) | Radiation source and optical sensor apparatus | |
| JP4699128B2 (en) | Analysis equipment | |
| JP2007107889A5 (en) | ||
| JP2006317451A (en) | Existence of gas sample, measuring method of concentration, and gas sensor device | |
| JP6658091B2 (en) | Analytical measurement system | |
| JP2006010697A (en) | Method for preventing condensation in gas sensor structure | |
| US20060249681A1 (en) | Gas Sensor Arrangement With Improved Long Term Stability and Measuring Method | |
| US9575083B2 (en) | Automatic analysis apparatus | |
| US20190212262A1 (en) | Automatic Analysis Apparatus | |
| JP5096975B2 (en) | Gas detector | |
| US7400406B2 (en) | Microchip measurement device | |
| JP2006269596A (en) | Flash lamp light emitting device | |
| JP5469929B2 (en) | Nucleic acid analyzer | |
| JP6643715B2 (en) | Ozone measurement device | |
| JP4723439B2 (en) | Chemical analyzer | |
| JP3172566U (en) | Mirror surface dew point meter | |
| JP4032741B2 (en) | Lamp state detector and lamp state monitoring device using the same | |
| US9869626B2 (en) | Particle size distribution measuring apparatus and particle size distribution measuring method | |
| JP4409489B2 (en) | Chemical concentration monitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20071221 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100128 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100302 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100430 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100608 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100809 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20101014 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20101130 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110131 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20110222 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110302 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4699128 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140311 Year of fee payment: 3 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |