Abstract:
An infrared spectrophotometer, which is capable of preventing measurement data measured from being adversely affected by moisture vapor. An internal space of an attachment receiving therein an optical element is sealed and isolated from ambient air by providing a tube and others, and a dehumidifier is provided in the internal space of the attachment for an optical path. Thus, the dehumidifier is disposed in a relatively narrow space, so that the internal space of the attachment can be efficiently dehumidified within a short period of time so as to reduce humidity in the internal space to suppress absorption of moisture vapor which would otherwise occur on the optical path in the internal space of the attachment. This makes it possible to prevent a negative influence of moisture vapor on measurement data, while reducing a standby time due to the dehumidification.
Abstract:
The invention is about an optical sensor element (1) for use in an optical sample analysing apparatus (2), comprising a housing (3) which contains at least one optical sensor component (4). ,The optical sensor element further comprises a housing body (5) and a housing lid (6), which is removably connected to the housing body (5), so that in the assembled state the housing body (5) and the housing lid (6) are forming a fluid-tight housing (3), and wherein the housing lid (6) is equipped with replaceable moisture control elements (7). The invention further is about an optical sample analysing apparatus (2) configured to work as a modular nephelometric turbidity sensor device, with at least one optical sensor element (1') configured as light receiving element, and one optical sensor element (1) configured as light emitting element.
Abstract:
An infrared spectrophotometer, which is capable of preventing measurement data measured from being adversely affected by moisture vapor. An internal space of an attachment receiving therein an optical element is sealed and isolated from ambient air by providing a tube and others, and a dehumidifier is provided in the internal space of the attachment for an optical path. Thus, the dehumidifier is disposed in a relatively narrow space, so that the internal space of the attachment can be efficiently dehumidified within a short period of time so as to reduce humidity in the internal space to suppress absorption of moisture vapor which would otherwise occur on the optical path in the internal space of the attachment. This makes it possible to prevent a negative influence of moisture vapor on measurement data, while reducing a standby time due to the dehumidification.
Abstract:
An analysis method includes the steps of causing a moist sample to react with a reagent and measuring concentration of a particular component contained in the sample based on the state after the reaction of the sample with the reagent. The reaction step and the measurement step are performed while the amount of moisture contained in the air in a space accommodating the sample and the reagent is directly or indirectly measured. The method further includes the step of correcting the measurement result of the concentration of the particular component based on the amount of moisture contained in the air.
Abstract:
Infrarotlichtquelle (1) für die Gasdetektion, mit einem Dünnschicht-Infrarotstrahler (2), der im Innenraum (9) eines Schutzgehäuses (3) angeordnet ist, das eine Tragefläche (4) für den Infrarotstrahler (2) und der Tragefläche (4) mit Abstand gegenüberliegend ein Austrittsfenster (7) für Infrarotstrahlung aufweist. Erfindungsgemäß ist vorgesehen, dass der Dünnschicht-Infrarotstrahler (2) eine Platinschicht aufweist und dass von dem Innenraum (9) des Schutzgehäuses (3) mindestens ein Entgasungskanal (10) mit einer Eintrittsöffnung (11) und einer Austrittsöffnung (12) nach außen führt. Für unkritische Anwendungen ist der Entgasungskanal (10) unverschlossen, für kritische Anwendungen kann er mittels einer wasserundurchlässigen, wasserdampfdurchlässigen und gasdiffusionsoffenen Dichtungsmembran (15) abgedichtet sein, wobei die Dichtungsmembran (15) vorzugsweise semipermeabel ausgebildet ist.