Abstract:
Authentication systems for products employing populations containing particles of diamonds that have fluorescent emissions of various wavelengths, intensities and durations are described. By varying the populations of diamond particles in products to be labeled, multiple different identification systems can be obtained permitting authentication taggants for large numbers of different products.
Abstract:
The present disclosure relates to a method and apparatus for testing materials. More particularly, but not exclusively, this invention concerns a method and apparatus for testing materials using infrared spectrometry. The invention also concerns the calibration of an infrared spectrometer for use in testing materials using infrared spectrometry. The invention provides a method of calibrating an infrared spectrometer for testing composites in the aerospace industry, comprising the steps of, selecting a plurality of variables which have the potential to influence the physical characteristics of a composite used in the aerospace industry, selecting a plurality of values for each variable and inputting the variable and values into a design of experiments model, thereby obtaining a sample test matrix.
Abstract:
An infrared (IR) imaging system (100) for determining a concentration of a target species in an object (110) is disclosed. The imaging system can include an optical system including an optical focal plane array (FPA) unit (136). The optical system can have components defining at least two optical channels (120) thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit (150) containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person.
Abstract:
The invention provides an interface (20) for converting a desired physiological plant response into control instructions for at least one lighting system (4,5) which has an adjustable lighting property, said interface (20) comprising: • a receiver for receiving a desired physiological plant response; • a processor functionally coupled to said receiver for converting said desired physiological plant response into said control instructions, and • a transmitter (7), functionally coupled to said processor for transmitting said control instructions to said at least one lighting system (4,5) wherein said desired physiological plant response is defined as a set point in a multi-dimensional horticulture action space.