Abstract:
An on-site device for detecting presence of a liquid from a site and a method for detecting presence of a liquid from a site using the on-site device, the device comprising a moisture detector arranged to detect the presence of the liquid based on one or more electrical characteristics of the liquid; a first optical detector assembly coupled to the moisture detector, the first optical detector assembly being configured to be activated upon detection of the presence of the liquid by the moisture detector; and wherein upon activation, the first optical detector assembly is configured to detect a substance in the liquid based on one or more optical characteristics of the substance.
Abstract:
Various embodiments of a light detection device (10) and a system (2) that utilizes such device (10) are disclosed. In one or more embodiments, the light detection device (10) includes a housing (12) that includes a port (20) disposed in a top surface (14), a receptacle (30) disposed within the housing (12) and adapted to receive a sample (80), a detector (40) disposed within the housing (12) along an optical axis (31) and including an input surface (42) having an active area, and a reflector (50) disposed within the housing (12) along the optical axis (31) between the receptacle (30) and the input surface (42) of the detector (40). The reflector (50) includes an input aperture (56) disposed adjacent the receptacle (30), an output aperture (58) disposed adjacent the input surface (42) of the detector (40), and a reflective surface (51) that extends between the input aperture (56) and the output aperture (58).
Abstract:
Various embodiments of a light detection device and a method of using such device are disclosed. In one or more embodiments, the light detection device can include a housing including a top surface and a bottom surface, where the housing extends along a housing axis between the top surface and the bottom surface; and a support member connected to the housing and adapted to be selectively moved from a closed position to an open position. The support member is further adapted to maintain the light detection device in an upright position when the bottom surface and the support member are in contact with a working surface and the support member is in the open position.
Abstract:
A metallized membrane includes a porous polymer membrane such as a track-etched membrane having two opposing surfaces, and a metallic layer of from 200 nm to 1000 nm thick on at least one surface thereof. Titanium metal may be used to form the metallic layer. The metallized membrane is suitable for use as a fluorescence blocking filter, for example in a Boyden chamber.
Abstract:
With regard to the detection of a physiological active substance of biological origin and the measurement of its concentration in a sample, the invention provides a technique for moving gel particles that are produced in the sample without using a mechanical stirring member, and allows a highly accurate detection of the physiological active substance of biological origin and measurement of its concentration with a simple arrangement. By partial heating/cooling of a sample cell, thermal convection is generated within a mixture liquid in the sample cell, and as a result the gel particles that are produced in the mixture liquid are moved. In addition, based on the intensity of forward scattered light, the rate of change in the number of gel particles is measured.
Abstract:
Optical computing devices are disclosed. One optical computing device includes an electromagnetic radiation source that emits electromagnetic radiation into an optical train to optically interact with a sample and at least one integrated computational element, the sample being configured to generate optically interacted radiation. A sampling window is arranged adjacent the sample and configured to allow transmission of the electromagnetic radiation therethrough and has one or more surfaces that generate one or more stray signals. A first focal lens is arranged to receive the optically interacted radiation and the one or more stray signals and generate a primary focal point from the optically interacted radiation. A structural element defines a spatial aperture aligned with the primary focal point such that the optically interacted radiation is able to pass therethrough while transmission of the one or more stray signals is substantially blocked by the structural element.
Abstract:
A light emission detection device having a flow path from which light to be detected is emitted is provided. The device includes a detection-side substrate having a joining surface and a detection surface provided opposite the joining surface, the joining surface having a depression and a light-shielding film provided over an area excluding the depression, the depression forming the flow path, the detection surface transmitting the light emitted from the flow path; and a wiring-side substrate having a joining surface and a conductive pattern provided with a varying thickness on the joining surface, the joining surface of the wiring-side substrate joining the joining surface of the detection-side substrate. In the area over which the light-shielding film is provided, adhesive is provided with a thickness corresponding to the varying thickness of the conductive pattern and the detection-side substrate and the wiring-side substrate are closely joined to each other with the adhesive.
Abstract:
A system and method for optical spectroscopic measurements is described. One embodiment includes a measurement head for optical spectroscopic measurements, the measurement head comprising an illumination source configured to illuminate a sample, a collection optic configured to view the sample, and an internal reference, wherein the internal reference can be illuminated by the illumination source and viewed by the collection optic.