The biometric system comprises: a measurement cartridge; and a meter, equipped with the measurement cartridge, for measuring an analyte present in a sample of the measurement cartridge. The measurement cartridge comprises a reagent container, a capillary module, and a reagent rod. The reagent container receives a liquid reagent and has a top sealed with a sealing film. The capillary module comprises a capillary tube which is located on an upper side of the reagent container and collects the sample by a capillary phenomenon, and the capillary tube is introduced into the reagent container by rupturing a contact portion to the sealing film by an applied pressure.

Aspects relate to an optical fluid analyzer including a fluid cell configured to receive a sample fluid. The optical fluid analyzer further includes optical elements configured to seal the fluid cell on opposing sides thereof and to allow input light from a light source to be sent through the fluid cell and output light from the fluid cell to be input to a spectrometer. The optical fluid analyzer further includes a machine learning (ML) engine, such as an artificial intelligence (AI) engine, that is configured to generate a result defining at least one parameter of the fluid based on a spectrum produced by the spectrometer.

A laser analysis device includes a laser analysis unit that a sample is irradiated with laser light, a cover that covers a periphery of the laser analysis unit, so as to prevent the laser light from being emitted to outside, and has a slit in at least a part of the cover, a fastener configured to open and close the slit, and an interlock mechanism including a key provided on the fastener and a detector that detects a state in which the fastener is fully closed, in which in a state where the detector has detected that the fastener is fully closed, laser light having a predetermined intensity or more is introduced into the laser analysis unit.

A biometric system is disclosed. The biometric system comprises: a measurement cartridge; and a meter, equipped with the measurement cartridge, for measuring an analyte present in a sample of the measurement cartridge. The measurement cartridge comprises a reagent container, a capillary module, and a reagent rod. The reagent container receives a liquid reagent and has a top sealed with a sealing film. The capillary module comprises a capillary tube which is located on an upper side of the reagent container and collects the sample by a capillary phenomenon, and the capillary tube is introduced into the reagent container by rupturing a contact portion to the sealing film by an applied pressure. The reagent rod comprises a plurality of dry reagent accommodating portions which are located on an upper side of the reagent container and accommodate a drying reagent, and the reagent rod is introduced into the reagent container by rupturing a contact portion to the sealing film by an applied pressure.

A system for containing a sample for analysis by a spectrometer, comprising a sample receptacle unit with a well for containment of the sample, the well comprising a well inner wall and well floor, a floor aperture in the well floor, and comprising a first spectroscopy element, the first spectroscopy element spanning the opening of floor aperture, wherein the well further comprises a sealing material at the interface of the inner wall with the first spectroscopy element, wherein radiation is free to pass through the floor aperture to the first spectroscopy element.

A well-logging tool may include a sonde housing and a radiation generator carried by the sonde housing. The radiation generator may include a generator housing, a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled in a uni-polar configuration, and at least one loading coil coupled at at least one intermediate position along the voltage ladder. The well-logging tool may further include at least one radiation detector carried by the sonde housing.

This invention is a multiple reflection type cell that makes it possible to reduce a dead space resulting from a position adjusting mechanism and to adjust the light to a desired optical path length without complicating a structure. The multiple reflection type cell comprises a cell body where a cell chamber is formed, two or more reflecting members that are mounted on the cell body and whose reflecting surfaces locate in the cell chamber, and a position adjusting mechanism that adjusts a position of the reflecting member relative to the cell body. The cell body has a mounting part that communicates the cell chamber and the outside and on which the reflecting members are mounted. A seal member that seals a gap between the cell chamber and the outside of the cell body is arranged between the reflecting member mounted on the mounting part and the cell body so that the gap between the cell chamber and the outsider of the cell body is sealed by the seal member.

An in-situ gas-measuring system (1) includes an IR photon source (10) and an IR photon detector (11). The in-situ gas-measuring system (1) has an expansion chamber (12), at which an optical element (16, 16′, 16″) is arranged. A connection element (13) provides a detachable fluid-communicating connection of the expansion chamber (12) to a gas reaction chamber (2). The IR-photon source (10), the optical element (16, 16′, 16″) and the IR photon detector (11) define an optical measuring path, which extends through the expansion chamber (12). The installation and maintenance of the in-situ gas-measuring system (1) are reduced by the features of the in-situ gas-measuring system (1).

A smoke detector includes: a casing; a first light emitting unit; a second light emitting unit; and a light receiving unit. A second scattering angle that is an angle between the reception axis of the light receiving unit and a second extension extending from an intersection of the second emission axis and the reception axis in a direction away from the second light emitting unit is larger than a first scattering angle that is an angle between the reception axis of the light receiving unit and a first extension extending from an intersection of the first emission axis and the reception axis in a direction away from the first light emitting unit.

A gas analysis device includes a light source configured to emit laser beam to a target gas, a reflection body which reflects the laser beam, a light reception device that receives the laser beam reflected by the reflection body, a container which contains the light source and the light reception device, and an alignment mechanism that includes an insertion member inserted from outside of the container to inside of the container to move, along a plane intersecting with the irradiation direction of the laser beam, at least any one of the light source and the light reception device.