36results about How to "Improve optical signal strength" patented technology

The invention discloses an oil smoke detection device. The oil smoke detection device comprises a sampling unit, a processing module, a light emitting module and a light receiving module, wherein thelight receiving module and the light emitting module are arranged on different sides of the sampling unit; the light receiving module comprises a sensing unit and a lens; the lens is arranged betweena detection cavity of the sampling unit and the sensing unit; the processing module is connected with the sensing unit; the light receiving module is used for receiving light scattered by oil smoke; and the sampling unit is arranged outside an oil smoke pipeline and communicates with the oil smoke pipeline. The oil smoke detection device has the substantial effects of improving the intensity of anoptical signal received by the light receiving module when working, reducing the interference of stray light, improving the detection accuracy, and having the characteristics of long service life andconvenient operation.

The invention provides an oil fume sampling detection device and a sampling method thereof. The oil fume sampling detection device comprises an optical transmitting module, an optical receiving module, a processing module, an air inlet pipe, an air outlet pipe and a sampling box, the processing module processes a signal received by the optical receiving module, and the sampling box is located at the outside of a fume exhaust pipe and used for storing oil fume gas and mounting the optical transmitting module and the optical receiving module; one end of the air inlet pipe is communicated with the fume exhaust pipe, the other end of the air inlet pipe is communicated with the sampling box, and the air inlet pipe is used for enabling the oil fume gas to flow to the sampling box from the fume exhaust pipe; one end of the air outlet pipe is communicated with the sampling box while the other end thereof is communicated with the fume exhaust pipe, and the air outlet pipe is used for enabling the oil fume gas to flow out to the fume exhaust pipe from the sampling box. With the device and method provided by the invention, a process of detecting the oil fume gas is in a stable and sealed darkenvironment, interference of outside stray light on the optical receiving module is reduced to the minimum, and accuracy of oil fume detection is increased greatly.

The invention discloses a new method for detecting hydrogen peroxide on the basis of a MoS2 nanometer enzyme luminescence system. The new method comprises the following steps: S1, preparing MoS2 two-dimensional nanometer enzymes; S2, preparing 0.1 mol / L of a Rumino mother liquor and a Tris-HCI buffer solution; S3, diluting the prepared Rumino mother liquor with the Tris-HCI buffer solution to 5 mol / L of the Rumino mother liquor, then taking 40 micro-liters of the solution to be uniformly mixed with 40 micro-liters of hydrogen peroxide solution in a measuring cup, then adding 40 micro-liters of1 mol / L of MoS2 nanometer enzymes, reacting for 30 seconds, then putting the whole reaction system in a chemiluminescence measuring instrument, and collecting and recording an optical signal producedby reaction through a chemiluminescence instrument. The new method disclosed by the invention has the benefits that the intensity of the optical signal when the hydrogen peroxide is detected is enhanced, and the reaction time is shortened.

An embodiment of the present invention provides a TOF ranging system and a movable platform. The TOF ranging system includes: a light emitter, a receiver, a controller, and an optical system. The optical system includes a first optical signal processing device and a second optical signal processing device. At least one of the devices; the optical signal emitted by the light emitter passes through the first optical signal processing device to improve the radiation power density of the optical signal emitted by the light emitter; the optical signal reflected by the target object passes through the second optical signal processing device to improve the receiving The intensity of the light signal reflected by the target object received by the detector. The embodiments of the present invention can improve the signal-to-noise ratio of the TOF ranging system by increasing the radiation power density of the optical signal emitted by the light emitter, and / or increasing the intensity of the optical signal reflected by the target object received by the receiver, so that the TOF ranging system Target objects that are far away from the TOF ranging system can be detected, thereby improving the ranging range of the TOF ranging system.

A micropore structure of a microplate strip comprises round micropore in a standard format. A plurality of convex tooth strips in the same shape and proportion are arranged in an equant manner on the annular wall of the lower part of the inside of each micropore, the bottoms of the convex tooth strips are connected with the bottom of the micropore, and the sides of the convex tooth strips are connected with the annular wall of the micropore. The surface area formed by the convex tooth strips convex inward is much greater than the surface area of the inner cavity of the conventional micropore, so the solid-liquid interface of the same volume of reaction solution has a greatly increased reaction area that is favorable for complete immunoreactions, and luminous reaction or enzyme catalyzed reaction and contributes to the great reduction in time for reaching reaction equilibrium, improvement in detection flexibility and reduction in time for detection; the convex tooth strips improves both the reaction area and an optical signal compared with the conventional micropore structure and increases the strength of the detection optical signal of a luminometer; the top parts of the convex tooth strips are inclined sectors which are capable of reflecting the optical signal of the luminous reaction upward to a probe of the luminometer, and compared with the reaction of the micropore side wall of the conventional microplate strip, the optical signal of the probe is strengthened considerably and the flexibility of a method is improved.

The invention discloses a mask alignment device and a mask alignment method. The mask alignment device includes: a detection unit, an illumination unit and a workpiece stage unit; the illumination unit includes a backlight light source, a coaxial light source and a ring light source; the backlight light source is located on the side of the workpiece stage unit away from the detection unit; the workpiece stage unit is away from the backlight light source The one side surface of the light source is used to carry the mask to be aligned; the optical axis of the coaxial light source, the optical axis of the ring light source and the central axis of the detection unit are all coaxially arranged, and the coaxial light source, the ring light source and the detection unit are all located on the workpiece table The same side of the unit; the mask to be aligned includes positioning marks, and the positioning marks include through holes and / or grooves; backlight light source is used to provide illumination when positioning through holes, and coaxial light source and ring light source are used when positioning grooves Provide lighting. The technical scheme of the present invention can improve the measurement accuracy of the positioning marks in the mask, thereby improving the alignment accuracy of the mask and the frame.

The invention relates to a preparation method of high-sensitivity pyrosequencing reaction liquid. In the invention, a background signal can be controlled in a lower level under the condition of high-density luciferase by increasing the ATP sulphonated enzyme quantity to restrict the reaction between a subtract APS and the luciferase, and a reaction signal remarkably raises, therefore, the basic-group sequencing can be carried out by using dozens of fmol quantity of DNA which is one magnitude order less than that of the usual one. Therefore, for a sample with seldom sources and a product with low amplification efficiency, the accurate short-sequence measurement can be realized, and meanwhile, the novel high-sensitivity reaction liquid can be also applied to a portable bioluminescent analyzer which takes a photosensitive tube array with low price as a detector, thereby realizing fast, high-efficiency and low-cost DNA analysis.

The invention discloses a bracelet / foot ring worn by corrective personnel, comprising a wristband, a light source, a light detection module, a first Fresnel lens, a second Fresnel lens, at least a first reflection section and a second reflection The optical structural component, the control module, and the power supply of the cut surface, wherein the light emitted by the light source is focused by the second Fresnel lens and enters the optical structure component, and is reflected to the second reflective cut surface by the first reflective cut surface , and then transmitted to the optical detection module through the first Fresnel lens, the two ends of the optical structural member are fixedly connected with the two ends of the wristband to form a ring structure, and the light source, light detection module and control module are connected with the The power connection. It uses a Fresnel lens to focus light to enhance the intensity of light signals, and uses optical structural parts to improve connection strength and product stability. The circuit is placed in the wristband to make it more comfortable to wear and has better waterproof performance.

The invention discloses a reflective module device and a construction method of an infrared main lamp, comprising a reflective module base mechanism, a halogen lamp fixing mechanism, a light concentrating mechanism, a radiator, and a reflective module base fixing mechanism. Four halogen lamp fixing mechanisms are installed at the center of the arc surface of the seat mechanism, the focusing mechanism is installed above the halogen lamp fixing mechanism, the focusing mechanism is connected and fixed with the halogen lamp fixing mechanism, and the radiator is installed inside the focusing mechanism In the central position, the reflective module base fixing mechanism is installed below the reflective module base mechanism; the present invention uses equidistantly arranged reflective modules plus halogen lamps, which can reduce the number of halogen lamps used and reduce the cost of reflectors. The use of length, and because the number of halogen lamps is small and the relative intervals are relatively large, it can facilitate heat dissipation, and a radiator is installed in the light-condensing mechanism to further improve the heat dissipation effect, thereby prolonging the service life of the halogen lamp beads.

Provided is a biochip and an apparatus for detecting a biomaterial. The biochip includes a metal thin film on the surface of a substrate, restraining autofluorescence of the substrate, and a spacer on the metal thin film, having capture molecules immobilized on the surface of the spacer and specifically bound to target molecules. The spacer has a thickness controlled to enhance the strength of a fluorescence signal emitted from a fluorophore labeled with the target molecules and immobilized on the spacer by the specific binding between the capture molecule and the target molecule.

The invention relates to a method for preparing silicon-dioxide microspheres with liposome embedded with quantum dots. The method includes the following steps: lipid material is dissolved in an organic solvent for being prepared to be a lipid film by rotary evaporation; the lipid film is added with a water solvent of the quantum dots for being prepared to be the liposome taking lipid as the film and the quantum dots as the core and with a grain size less than or equal to 10 Mum by a thin film dispersing method; the lipsome is added with tetraethyl orthosilicate to form silicon dioxide on the surface of the lipsome so as to obtain the silicon-dioxide microsphere with the liposome embedded with the quantum dots. The method has the advantages that: the silicon-dioxide microsphere with the liposome embedded with the quantum dots can decrease the toxicity of the quantum dots, increase the light signal intensity of every luminous point, and obtain microspheres with large quantity and different fuorescence spectra characteristics so as to play a part in biological high-flux detection. The quantum-dot microsphere of micron size is applicable to the cure of tumour artery embolism; and the quantum-dot silicon-dioxide microspheres with different grain sizes evenly arranging from nanometer to micron can be obtained by the method.

The invention belongs to the field of biological detection, in particular to a method for detecting luciferase activity in a sample. This involves incubating biotinylated luciferase in a mixture containing ATP, Mg2+, Ca2+, luciferin, aminoacetylglycine, and phosphate to generate a light signal. In the process of detecting luciferase, the intensity of the light signal is high and the duration is long, which is conducive to the high-throughput screening and use of luciferase.