Abstract:
An infrared emitter is provided, including a battery; a carrier having a groove formed in a center thereof and a plurality of holes formed through the carrier via the groove; a resistive fuse penetrating the holes and wound around the carrier, and having two ends electrically connected to negative and positive electrodes of the battery, respectively; and an infrared chip disposed in the groove of the carrier and being in direct contact with the resistive fuse, wherein heat is generated when a current of the battery flows through the resistive fuse so that the carrier and the infrared chip can be heated to enable the infrared chip to emit infrared rays. Accordingly, the infrared emitter has the advantages of small-size, light-weight and simple structure and great portability to significantly increase the convenience in use, especially in the application of narrow bandwidth infrared radiation relevant researches on biological cells.
Abstract:
A gas detection system comprising a case having a hollow chamber, a gas input port, a gas output port, a radiation emitting device, and a photo detector. The gas input port may be disposed on the case for a test gas flowing into the chamber. The gas output port may be disposed on the case for the test gas flowing out of the chamber. The radiation emitting device may be disposed on the case and operated in a surface plasmonic mode or a waveguide mode for emitting a narrow bandwidth thermal radiation light source with multi-peak wavelengths into the chamber, wherein the multi-peak wavelengths may comprise a first absorption wavelength and a second absorption wavelength of the test gas. The photo detector may be disposed on the case for detecting light intensity of the light source passing through the chamber to determine the concentration of the test gas.
Abstract:
A gas detection system comprising a case having a hollow chamber, a gas input port, a gas output port, a radiation emitting device, and a photo detector. The gas input port may be disposed on the case for a test gas flowing into the chamber. The gas output port may be disposed on the case for the test gas flowing out of the chamber. The radiation emitting device may be disposed on the case and operated in a surface plasmonic mode or a waveguide mode for emitting a narrow bandwidth thermal radiation light source with multi-peak wavelengths into the chamber, wherein the multi-peak wavelengths may comprise a first absorption wavelength and a second absorption wavelength of the test gas. The photo detector may be disposed on the case for detecting light intensity of the light source passing through the chamber to determine the concentration of the test gas.