An online detection device underwater elements includes an LIBS system in a sealing pressure chamber and an external airflow control system. The airflow control system has a gas probe bin and a gas source. An opening is formed at one end of the gas probe bin while the other end and the sealing pressure chamber are hermetically partitioned through a glass window. A laser in the LIES system outputs laser to an underwater object surface to be detected for generating plasma spectra. A spectrometer collects plasma spectra returned along an original optical path. When the device operates in water, the balance gas storage tank produces gas with the same pressure as underwater. A flow model is invoked according to the current water pressure to accurately control the air flow rate to form a stable gas environment in the gas probe, which improves the plasma excitation and collection efficiency.

An inspection chip according to the present invention is an inspection chip for stirring liquid by a circular movement of a bottom surface end, including a well main body for accommodating the liquid and a side wall member arranged on a side surface of the well main body. The bottom surface end has a bottom surface structure in contact with a rotating member for allowing the bottom surface end to perform the circular movement in a position leaning from a center line of the well main body toward the side wall member.

A method of analysing a sample in the form of a droplet provided on a sample-receiving surface includes providing a light source and a detector in a housing, positioning said sample-receiving surface in or on the housing, and focussing an incident beam of light to a focal point in the vicinity of the sample. Light is detected from the sample resulting from an interaction with the sample, the sample-receiving surface, or the atmosphere surrounding the sample. At least one parameter of the detected light is measured, and the sample-receiving surface is translated relative to the housing such that the focal point is at a different region of the sample, the sample-receiving surface, or the atmosphere surrounding the sample. The step of measuring one or more parameters of the detected light is repeated following the translating step.

A sensor housing apparatus includes a housing having an enclosure and outer assembly, at least one flow path extending through the housing, a gas sensor disposed in the enclosure and a thermal mass. The thermal mass is mounted within the enclosure in thermal communication with the gas sensor, and is configured to transfer thermal energy from the gas sensor to an ambient environment surrounding the housing and minimize temperature gradients adjacent the gas sensor.

A method of analysing a sample in the form of a droplet provided on a sample-receiving surface includes providing a light source and a detector in a housing, positioning said sample-receiving surface in or on the housing, and focussing an incident beam of light to a focal point in the vicinity of the sample. Light is detected from the sample resulting from an interaction with the sample, the sample-receiving surface, or the atmosphere surrounding the sample. At least one parameter of the detected light is measured, and the sample-receiving surface is translated relative to the housing such that the focal point is at a different region of the sample, the sample-receiving surface, or the atmosphere surrounding the sample. The step of measuring one or more parameters of the detected light is repeated following the translating step.

A plasmon resonance system, instrument, cartridge, and methods for analysis of analytes is disclosed. A PR system is provided that may include a DMF-LSPR cartridge that may support both digital microfluidic (DMF) capability and localized surface plasmon resonance (LSPR) capability for analysis of analytes. In some examples, the DMF portion of the DMF-LSPR cartridge may include an electrode arrangement for performing droplet operations, whereas the LSPR portion of the DMF-LSPR cartridge may include an LSPR sensor. In other examples, the LSPR portion of the DMF-LSPR cartridge may include an in-line reference channel, wherein the in-line reference channel may be a fluid channel including at least one functionalized LSPR sensor (or sample spot) and at least one non-functionalized LSPR sensor (or reference spot). Additionally, methods of using the PR system for analysis of analytes are provided.

A plasmon resonance system, instrument, cartridge, and methods for analysis of analytes is disclosed. A PR system is provided that may include a DMF-LSPR cartridge that may support both digital microfluidic (DMF) capability and localized surface plasmon resonance (LSPR) capability for analysis of analytes. In some examples, the DMF portion of the DMF-LSPR cartridge may include an electrode arrangement for performing droplet operations, whereas the LSPR portion of the DMF-LSPR cartridge may include an LSPR sensor. In other examples, the LSPR portion of the DMF-LSPR cartridge may include an in-line reference channel, wherein the in-line reference channel may be a fluid channel including at least one functionalized LSPR sensor (or sample spot) and at least one non-functionalized LSPR sensor (or reference spot). Additionally, methods of using the PR system for analysis of analytes are provided.

A plasmon resonance system, instrument, cartridge, and methods for analysis of analytes is disclosed. A PR system is provided that may include a DMF-LSPR cartridge that may support both digital microfluidic (DMF) capability and localized surface plasmon resonance (LSPR) capability for analysis of analytes. In some examples, the DMF portion of the DMF-LSPR cartridge may include an electrode arrangement for performing droplet operations, whereas the LSPR portion of the DMF-LSPR cartridge may include an LSPR sensor. In other examples, the LSPR portion of the DMF-LSPR cartridge may include an in-line reference channel, wherein the in-line reference channel may be a fluid channel including at least one functionalized LSPR sensor (or sample spot) and at least one non-functionalized LSPR sensor (or reference spot). Additionally, methods of using the PR system for analysis of analytes are provided.

An automatic photocurrent spectrum measurement system based on a Fourier infrared spectrometer, including a light source component, an environment control component, a measuring module, and a control module. The system is configured to evaluate photoelectric performance semiconductor materials or devices under different temperatures, voltage biases or current biases.

A non-destructive measurement unit of gas concentration in sealed containers and an automatic filling and/or packaging line using such a unit are provided. The flexible containers are at least partially optically transparent, and the measurement unit comprises a light source for emitting a light beam at a wavelength tunable with an absorption wavelength of a gas contained in the sealed flexible container. The light source directs the light beam toward at least one inspection area, and a detector detects at least a portion of the beam after the beam passes through the inspection area and outputs data representative of an absorption spectrum of the gas. Means for generating a head space of predefined width into the sealed flexible container is adapted to advance the sealed flexible container by an advancement path which crosses the inspection zone and to maintain the predefined width of the head space during the advancement.