Abstract: The present disclosure relates to a non-contact type security inspection and method, the system including: a laser source for emitting probe light beams which penetrate through a container or a packaging and are irradiated onto an inspected object contained in the container or the packaging; an optical collection device for collecting an exciting light excited by the probe light beams on the inspected object; a spectrum analyzer for analyzing spectral characteristics of the exciting light collected by the optical collection device so as to determine characteristics of the inspected object; and a shielding apparatus for preventing at least part of the exciting light excited by the probe light beams on the container or the packaging from entering an induction

Abstract: A multi-resolution spectrometer, includes: an incident slit (10) configured to receive an incident light beam; a collimating device (20) configured to collimate the light beam from the incident slit; a dispersing device (30) configured to disperse the light beam collimated by the collimating device (20) so as to form a plurality of sub-beams (61, 62) having different wavelengths; an imaging device (40) and a photon detector array (50), the imaging device (40) being configured to image the plurality of sub-beams (61, 62) on the photon detector array (50) respectively, the photon detector array (50) being configured to convert light signals of the plurality of sub-beams (61, 62) imaged thereon into electrical signals for forming a spectrogram, wherein the incident slit (10) has a first slit portion (11) and a second slit portion (12), and the second slit portion (12) has a greater width than the first slit portion (11).

Abstract: Disclosed is a Ho and W-containing rare-earth magnet. The rare-earth magnet comprises a R2Fe14B type principal phase, and comprises the following raw material components: R: 28 wt % to 33 wt %, wherein R is a raw-earth element comprising Nd and Ho, and the content of Ho is 0.3 wt % to 5 wt %; B: 0.8 wt % to 1.3 wt %; W: 0.005 wt % to 0.3 wt %, and the balance of T and inevitable purities, wherein T is an element mainly comprising Fe and/or Co. The rare-earth magnet mainly consists of a W-rich grain boundary phase and a Ho-rich principal phase; crystal grain growth of the Ho-containing magnet in a sintering process is constrained by the trace of W, thereby preventing AGG from occurring on the Ho-containing magnet, and obtaining a magnet with high coercivity and high heat resistance.

Abstract: The disclosure provides a Raman spectrum detection apparatus, including: a laser configured to emit laser light to an object to be detected; a Raman spectrometer configured to receive Raman light from the object; an imaging device configured to obtain an image of the object; and a controller configured to control an operation of the detection apparatus based on grayscales of the image. There is further provided a Raman spectrum detection method.

Abstract: The present invention relates to a Raman-enhanced substrate fixing device and a Raman-enhanced detecting system. the Raman-enhanced substrate fixing device comprises a fixing base, wherein the fixing base is provided with a substrate receiving portion and a probe connecting portion, the substrate receiving portion is used for receiving a Raman-enhanced substrate, the probe connecting portion is used for connection with a probe of a Raman spectrometer, and the probe connecting portion and the substrate receiving portion are disposed such that light emitted by the probe is capable of being irradiated onto the Raman-enhanced substrate.

Abstract: A detection apparatus, including: a laser configured to emit laser light towards an object to be detected; a Raman spectrometer configured to receive Raman light from the object; an imaging device configured to obtain an image of the object; a light sensor configured to receive light reflected and scattered by the object under irradiation of the laser light, and to determine the power of the received light; and a controller configured to control an operation of the detection apparatus based on the image obtained by the imaging device and the power determined by the light sensor. A detection method using the detection apparatus.

Abstract: A detection apparatus includes: a laser configured to emit laser light towards an object to be detected; a Raman spectrometer configured to receive a Raman light signal from the object; a light sensor configured to receive portions of the laser light reflected and scattered by the object under irradiation of the laser light, and to determine power of the received portions of the laser light; and a controller configured to control an operation of the detection apparatus based on the power determined by the light sensor. Further, there is provided a detection method using the above detection apparatus.

Abstract: Embodiments of the present invention provide a Raman spectroscopic inspection method, comprising the steps of: measuring a Raman spectrum of an object to be inspected successively to collect a plurality of Raman spectroscopic signals; superposing the plurality of Raman spectroscopic signals to form a superposition signal; filtering out a florescence interfering signal from the superposition signal; and identifying the object to be inspected on basis of the superposition signal from which the florescence interfering signal has been filtered out. By means of the above method, a desired Raman spectroscopic signal may be acquired by removing the interference caused by a florescence signal from a Raman spectroscopic inspection signal of the object. It may inspect correctly the characteristics of the Raman spectrum of the object so as to identify the object effectively.

Abstract: A Raman spectrum inspection apparatus is provided, including: a exciting light source configured to emit an exciting light to a sample to be inspected; an optical device configured to collect an optical signal from a position, which is irradiated by the exciting light, of the sample to be inspected; and a spectrometer configured to generate a Raman spectrum of the sample to be inspected from the received optical signal, wherein an excitation optical path in which the exciting light passes from the exciting light device to the sample to be inspected and a detection optical path in which the optical signal received by the spectrometer passes from the sample to be inspected to the spectrometer are separated from each other.

Abstract: An embodiment of the present disclosure provides a spectrum inspecting apparatus. The apparatus includes a laser source; a focusing cylindrical lens configured to converge a light beam onto a sample; a light beam collecting device configured to collect a light beam signal, which is excited by the light beam, from the sample, so as to form a strip-shaped light spot; a slit configured to receive the collected light beam and couple it to downstream of a light path; a collimating device; a dispersing device configured to disperse the collected light beam so as to form a plurality of sub-beams having different wavelengths; an imaging device configured to image the sub-beams on the photon detector array respectively, wherein the light beam emitted from the laser source has a rectangular cross-section, the strip-shaped light spot impinges on the slit and its length is smaller than a length of the slit.

Abstract: A Raman spectrum inspection apparatus and a security monitoring method for a Raman spectrum inspection apparatus are provided. The Raman spectrum inspection apparatus includes: a laser device configured to emit an exciting light; an optical device configured to guide the exciting light to an object to be detected and collect a light signal from the object; a spectrometer configured to split the collected light signal to generate a Raman spectrum of the object; and a security detector configured to detect an infrared light emitted from the object.

Abstract: A security inspection apparatus and a security inspection method are disclosed. In one aspect, an example apparatus includes a CT inspection device and a Raman spectrum inspection device, the CT inspection device includes: a CT scanner scanning an object to be inspected to generate a CT image, an image recognizing device recognizing the CT image to check whether or not the object has a suspected hazardous article, and an object marking device making a predetermined marker on the object which has the suspected hazardous article. The Raman spectrum inspection device includes: a Raman spectrum measuring device extracting a Raman spectrum of the suspected hazardous article in the object, a Raman spectrum comparing device comparing the Raman spectrum of the suspected hazardous article with Raman spectra of known compositions to determine a composition of the suspected hazardous article, and an object marker recognizing device recognizing the predetermined marker on the object.

Abstract: Embodiments of the present invention provide a protective device including a sliding door and a housing, together forming a closed space, wherein, a guide rail is provided on the housing, and the sliding door is slidable along the guide rail to open or close the closed space. In addition, embodiments of the present invention also provide a laser Raman safety inspection apparatus including the abovementioned protective device.

Abstract: Disclosed is a Ho and W-containing rare-earth magnet. The rare-earth magnet comprises a R2Fe14B type principal phase, and comprises the following raw material components: R: 28 wt % to 33 wt %, wherein R is a raw-earth element comprising Nd and Ho, and the content of Ho is 0.3 wt % to 5 wt %; B: 0.8 wt % to 1.3 wt %; W: 0.005 wt % to 0.3 wt %, and the balance of T and inevitable purities, wherein T is an element mainly comprising Fe and/or Co. The rare-earth magnet mainly consists of a W-rich grain boundary phase and a Ho-rich principal phase; crystal grain growth of the Ho-containing magnet in a sintering process is constrained by the trace of W, thereby preventing AGG from occurring on the Ho-containing magnet, and obtaining a magnet with high coercivity and high heat resistance.

Abstract: The disclosure provides a portable Raman device that includes a laser for emitting exciting light; a spectrometer for receiving Raman scattered light and converting the Raman scattered light into an electrical signal after beam splitting; a probe for leading the exciting light to irradiate on a sample and collect the Raman scattered light of the sample; and a fiber system connected between the laser and the probe as well as between the probe and the spectrometer so as to conduct light transmission. In comparison to conventional Raman devices, the portable Raman device of the disclosure has a simplified optical system, such that placement of components of the Raman device are more flexible, the whole size of the Raman device are reduced, and thus requirements of size miniaturization and quick real-time measurement are satisfied.

Abstract: Embodiments of the present invention provide a protective device including a sliding door and a housing, together forming a closed space, wherein, a guide rail is provided on the housing, and the sliding door is slidable along the guide rail to open or close the closed space. In addition, embodiments of the present invention also provide a laser Raman safety inspection apparatus including the abovementioned protective device.

Abstract: An embodiment of the present invention provides an optical probe, comprising: a first sleeve in which a lens is contained, the first sleeve having a light transmission aperture from which an exciting light enters the first sleeve; a second sleeve movably engaged with the first sleeve and having a detection window from which the exciting light having passed through the first sleeve and focused by the lens exits the optical probe, the second sleeve being capable of moving with respect to the first sleeve from a first detection position to a second detection position or from the second detection position to the first detection position; and a positioning member configured to position the second sleeve at the first detection position or the second detection position with respect to the first sleeve.

Abstract: Methods and devices for inspecting liquid are disclosed. According to the method, it is firstly determined whether the package of the liquid is transparent, semi-transparent, or opaque; in a case that the package of the liquid is transparent or semi-transparent, Raman spectrum analysis is implemented by a Raman spectrum module on the inspected liquid to judge whether the inspected liquid is dangerous or is suspected; and in a case that the package of the inspected liquid is opaque, the inspected liquid are inspected by using an X-ray dual-energy scanning technology to judge whether the inspected liquid is dangerous or is suspected. The above solution has advantages that the inspection speed is high, the material can be recognized, it is suitable for various packing materials with various shapes, the accuracy of the inspection result is high or the like.

Abstract: An embodiment of the present invention provides a Raman spectroscopic detection method for detecting a sample in a vessel, comprising the steps of: (a) measuring a Raman spectrum of the vessel to obtain a first Raman spectroscopic signal; (b) measuring a Raman spectrum of the sample through the vessel to obtain a second Raman spectroscopic signal; (c) removing an interference caused by the Raman spectrum of the vessel from the second Raman spectroscopic signal on basis of the first Raman spectroscopic signal to obtain a third Raman spectroscopic signal of the sample itself; and (d) identifying the sample on basis of the third Raman spectroscopic signal. By means of the above method, the Raman spectrum of the sample in the vessel may be detected correctly so as to identify the sample to be detected efficiently.

Abstract: A raman spectrum measuring method for drug inspection is provided, comprising: measuring raman spectrum of a sample to be inspected to acquire an original raman spectrum curve of the sample; determining whether the original raman spectrum curve has a characterizing portion, and if not, measuring a mixture of the sample and an enhancing agent to acquire an enhanced raman spectrum curve of the sample; and if the original raman spectrum curve of the sample to be inspected has a characterizing portion, comparing the original raman spectrum curve of the sample with data in an original raman spectrum database of a drug to determine whether the sample contains the drug, otherwise, comparing the enhanced raman spectrum curve of the sample with data in an enhanced raman spectrum database of the drug to determine whether the sample to be inspected contains the drug.