Abstract:
To provide a water electrolysis device for the determination of stable isotopic composition of water and a water electrolysis method for stable isotopic composition of water capable of analyzing many samples with ease, with safety and at low cost in a very short time, and rapidly analyzing 17O. The water electrolysis device performing mass spectrometry of hydrogen or oxygen stable isotopic composition includes: a proton exchange membrane which is made of fluorocarbon polymer plated non-electrolytically with platinum, iridium, rhodium or iridium-rhodium alloy, and a cathode and an anode made of porous titanium plated with platinum and sandwiching the proton exchange membrane, in which water is electrolyzed by introducing it into the anode side chamber and supplying a DC current between the anode and the cathode, and oxygen gas generated at the anode and hydrogen gas generated at the cathode are respectively allowed to flow into a isotope ratio mass spectrometer. Also it is provided that a water electrolysis method for stable isotopic composition of water using the water electrolysis device.
Abstract:
To provide a water electrolysis device for the determination of stable isotopic composition of water and a water electrolysis method for stable isotopic composition of water capable of analyzing many samples with ease, with safety and at low cost in a very short time, and rapidly analyzing 17O. The water electrolysis device performing mass spectrometry of hydrogen or oxygen stable isotopic composition includes: a proton exchange membrane which is made of fluorocarbon polymer plated non-electrolytically with platinum, iridium, rhodium or iridium-rhodium alloy, and a cathode and an anode made of porous titanium plated with platinum and sandwiching the proton exchange membrane, in which water is electrolyzed by introducing it into the anode side chamber and supplying a DC current between the anode and the cathode, and oxygen gas generated at the anode and hydrogen gas generated at the cathode are respectively allowed to flow into a isotope ratio mass spectrometer. Also it is provided that a water electrolysis method for stable isotopic composition of water using the water electrolysis device.
Abstract:
A carbon exchanging system for a carbon-arc weather resistance testing apparatus having a carbon drive system including a reversible motor for automatically moving upper and lower arc producing carbons toward and away from each other along a vertical line for keeping the discharge current and voltage substantially constant. The carbon exchanging system has remotely operable upper and lower carbon chucks for holding the upper and lower carbons, a carbon replacing device having a remotely operable exchanging chuck and a drive for moving the exchanging chuck along a path of movement toward and away from the upper and lower carbon chucks when they are in position on the vertical line, a shifting device for shifting the carbon drive system and the carbon replacing means relative to each other for moving the upper and lower chucks and the exchanging chuck laterally relative to the vertical line, a carbon supply adjacent the path of movement of the exchanging chuck for holding replacement carbons and moving them into position opposite a position of the exchanging chuck along the path, and a moving device for moving the exchanging chuck and the carbon supply relative to each other in a direction toward and away from each other. The system can also include a control device for automatically controlling the operation thereof.
Abstract:
A carbon exchanging system for a carbon-arc weather resistance testing apparatus having a carbon drive system including a reversible motor for automatically moving upper and lower arc producing carbons toward and away from each other along a vertical line for keeping the discharge current and voltage substantially constant. The carbon exchanging system has remotely operable upper and lower carbon chucks for holding the upper and lower carbons, a carbon replacing device having a remotely operable exchanging chuck and a drive for moving the exchanging chuck along a path of movement toward and away from the upper and lower carbon chucks when they are in position on the vertical line, a shifting device for shifting the carbon drive system and the carbon replacing means relative to each other for moving the upper and lower chucks and the exchanging chuck laterally relative to the vertical line, a carbon supply adjacent the path of movement of the exchanging chuck for holding replacement carbons and moving them into position opposite a position of the exchanging chuck along the path, and a moving device for moving the exchanging chuck and the carbon supply relative to each other in a direction toward and away from each other. The system can also include a control device for automatically controlling the operation thereof.
Abstract:
Bewitterungsprüfgerät (1), das aufweist: einen Lichtquellenabschnitt (11), der eine Vielzahl von Festkörperleuchtelementen (111a–e) aufweist, wobei sich die Festkörperleuchtelemente (111a–e) in der Art voneinander unterscheiden und dazu eingerichtet sind, Lichtstrahlen mit sich voneinander unterscheidenden Wellenlängenbereichen abzustrahlen; ein Beugungsgitter (17), das dazu eingerichtet ist, die von dem Lichtquellenabschnitt (11) für jeden der Wellenlängenbereiche emittierten Lichtstrahlen spektral zu streuen, so dass spektral gestreutes Strahlungslicht von dort zu wenigstens einer Probe (9) austritt; wenigstens einen Probenhalter (13A, 13B), der dazu eingerichtet ist die Probe (9) in Position zu halten, wobei der eine Probenhalter oder einer (13A) der Probenhalter (13A, 13B) bezogen auf den optischen Pfad der emittierten Lichtstrahlen hinter dem Beugungsgitter (17) angeordnet ist; einen Lichtempfänger (14), der eine Vielzahl von Lichtempfangssensoren (14a–e) aufweist, die dazu eingerichtet sind, die von jeweiligen Festkörperleuchtelementen (111a–e) des Lichtquellenabschnitts (11) abgestrahlten Lichtstrahlen für die jeweiligen Wellenlängenbereiche individuell zu empfangen, wobei jeder Lichtempfangssensor (14a–e) mit einem jeweiligen Festkörperleuchtelement (111a–e) korrespondiert; und eine Steuerung (16), die dazu eingerichtet ist, die Strahlungsintensität der jeweiligen Festkörperleuchtelemente (111a–e) basierend auf von den jeweiligen Lichtempfangssensoren (14a–e) des Lichtempfängers (14) abgeleiteten empfangenen Lichtmengen der jeweiligen Wellenlängenbereiche mittels Feedbacksteuerung individuell so zu steuern, dass eine in dem Lichtquellenabschnitt (11) festgelegte spektrale Bestrahlungsstärkeverteilung beibehalten wird, und damit die Bestrahlungsstärke auf einer Probenoberfläche für jeden der Wellenlängenbereiche zu steuern, so dass das Bewitterungsprüfgerät (1) dazu eingerichtet ist, einen Test zum Messen eines Grads der Verschlechterung der Probe (9) für jeden Wellenlängenbereich durchzuführen und dass ein Ausführen einer beschleunigten Prüfung einer Probe (9) ermöglicht wird.
Abstract:
PROBLEM TO BE SOLVED: To materialize composite cycle testing equipment provided with a solution supplying and recovering mechanism of an atomizing solution capable of preventing not only the variation of the pH and concentration of the atomizing solution used in an atomizing test but also the freezing of the atomizing solution even at a low temperature without bringing about an increase in cost and the leak of the atomizing solution.SOLUTION: The composite cycle testing equipment is characterized by providing the solution supplying and recovering mechanism which supplies the atomizing solution to the solution sump from the solution tank installed outside the test tank at the time of execution of an atomizing test for turning the atomizing solution in the solution sump installed in a test tank misty by an atomizing nozzle to bring the same into contact with an object to be tested and recovers the atomizing solution in the solution sump in the solution tank at the time of completion of the atomizing test.