The present disclosure provides a grating rotation method and apparatus for improving spectrograph wavelength accuracy. The grating rotation method comprises: acquiring a start wavelength and an end wavelength of a scanning range; determining a start angle and an end angle of a grating rotation according to preset grating rotation angle series values, the start wavelength and the end wavelength, wherein a wavelength corresponding to the start angle is smaller than the start wavelength, and a wavelength corresponding to the end angle is larger than the end wavelength; and rotating the grating according to the start angle and the end angle to obtain required spectral information. According to the grating rotation scheme provided by the present disclosure, the problem that the obtained spectral accuracy is inconsistent due to different grating rotation angles can be avoided.

The present disclosure provides a grating rotation method and apparatus for improving spectrograph wavelength accuracy. The grating rotation method comprises: acquiring a start wavelength and an end wavelength of a scanning range; determining a start angle and an end angle of a grating rotation according to preset grating rotation angle series values, the start wavelength and the end wavelength, wherein a wavelength corresponding to the start angle is smaller than the start wavelength, and a wavelength corresponding to the end angle is larger than the end wavelength; and rotating the grating according to the start angle and the end angle to obtain required spectral information. According to the grating rotation scheme provided by the present disclosure, the problem that the obtained spectral accuracy is inconsistent due to different grating rotation angles can be avoided.

A spectroscopic analysis system includes: an operation panel configured to receive an input of at least one of an upper limit value of a measurement period of a spectroscopic analysis spectrum or a lower limit value of measurement accuracy as a user setting condition related to measurement of the spectroscopic analysis spectrum of a sample; and a control unit configured to derive a predetermined recommended measurement condition that satisfies the user setting condition and cause a display unit to display the recommended measurement condition, in which the recommended measurement condition is at least one of a wavelength range of light to be used for measurement of the spectroscopic analysis spectrum, a sampling interval of a wavelength of the light, a slit width of a diffraction grating of a spectroscope that disperses the light, or a sweep speed of the wavelength of the light.

A portable complete analysis solution that integrates computer vision, spectrometry, and artificial intelligence for providing self-adaptive, real time information and recommendations for objects of interest. The solution has three major key components: (1) a camera enabled mobile device to capture an image of the object, followed by fast computer vision analysis for features and key elements extraction; (2) a portable wireless spectrometer to obtain spectral information of the object at areas of interest, followed by transmission of the data (data from all built in sensors) to the mobile device and the cloud; and (3) a sophisticated cloud based artificial intelligence model to encode the features from images and chemical information from spectral analysis to decode the object of interest. The complete solution provides fast, accurate, and real time analyses that allows users to obtain clear information about objects of interest as well as personalized recommendations based on the information.

A portable complete analysis solution that integrates computer vision, spectrometry, and artificial intelligence for providing self-adaptive, real time information and recommendations for objects of interest. The solution has three major key components: (1) a camera enabled mobile device to capture an image of the object, followed by fast computer vision analysis for features and key elements extraction; (2) a portable wireless spectrometer to obtain spectral information of the object at areas of interest, followed by transmission of the data (data from all built in sensors) to the mobile device and the cloud; and (3) a sophisticated cloud based artificial intelligence model to encode the features from images and chemical information from spectral analysis to decode the object of interest. The complete solution provides fast, accurate, and real time analyses that allows users to obtain clear information about objects of interest as well as personalized recommendations based on the information.

A spectroscopic analysis system includes: an operation panel configured to receive an input of at least one of an upper limit value of a measurement period of a spectroscopic analysis spectrum or a lower limit value of measurement accuracy as a user setting condition related to measurement of the spectroscopic analysis spectrum of a sample; and a control unit configured to derive a predetermined recommended measurement condition that satisfies the user setting condition and cause a display unit to display the recommended measurement condition, in which the recommended measurement condition is at least one of a wavelength range of light to be used for measurement of the spectroscopic analysis spectrum, a sampling interval of a wavelength of the light, a slit width of a diffraction grating of a spectroscope that disperses the light, or a sweep speed of the wavelength of the light.

The present disclosure discloses a tunable fiber scanner for an all-fiber nonlinear microspectrometer, including a scanning fiber, a scanning unit and a driving unit; the scanning unit includes a micro scanning square tube, the scanning fiber is fixed in the center of the micro scanning square tube, and the fiber ferrule is slidable relative to the scanning fiber so as to form an optical fiber cantilever; the spiral regulator controls the scanning fiber to generate lateral movement to obtain a controllable length of the optical fiber cantilever; the driving unit includes a piezoelectric ceramic driver arranged outside the scanner, the piezoelectric ceramic driver applies amplified driving signal to the micro scanning square tube, and the micro scanning square tube receives the amplified driving signal to drive the scanning fiber to scan and drive the optical fiber cantilever to perform resonance scanning.