CN205538649U - Embedded spectrum appearance of quantum dot - Google Patents

Abstract

The utility model discloses an embedded spectrum appearance of quantum dot, its characteristics are quantum dot detectors adopted four -wire silicon to bore a hole and small -size packaging structure is formed in playback circuit's butt joint by the PCB base plate that playback circuit is connected with preprocessor module and chronogenesis drive circuit respectively, preprocessor module changes with AD and the FPGA treater concatenates in proper order and then is connected with chronogenesis drive circuit, the FPGA treater concatenate after the wiFi module with APP mobile phone terminal connection. Compared with the prior art, the utility model high sensitivity has, high SNR and big responsiveness, the detection array of different wavelength is regulated and control to constitute to the quantum dot, messenger's quantum dot can detect the scope of 1.5um or bigger wavelength, can and the condition of faint light under accomplish spectral data and gather, fabric swatch area and consumption have been reduced greatly, transmit demonstration and the processing that cell -phone APP carries out spectral data to through WIFI, the intellectuality has been satisfied, miniaturization and light -weighted demand.

Description

A kind of quantum dot embedded spectrum instrument

Technical field

This utility model relates to technical field of spectral detection, specifically a kind of quantum dot embedded spectrum instrument.

Background technology

Spectral instrument is used to the device of the spectrum of research and analysis material, and its basic function is to measure to be ground the thing made internal disorder or usurp Matter absorbs, launches, scatters or the spectral composition of stimulated emission, including its wavelength and intensity etc..Spectral technique utilizes light Realize the detection to sample parameters at the absorption within sample, reflection and scattering signatures, be widely used in environment prison The fields such as survey, agricultural biomedical, scientific and technological, military analysis and industrial flow monitoring, particularly food safety, environment and biology The demand of a large amount of civilian spectrogrphs such as monitoring the most constantly increases.Along with the development of micro spectrometer, for the detection of faint light Receive increasing challenge, study a kind of novel spectrogrph, become the focus of various countries scientific research personnel research.

At present, micro spectrometer all uses silicon materials CCD or CMOS array detector, and its investigative range is typically 1000 About nm, it is impossible to and faint light under conditions of complete spectrum data gathering, add that reading speed is relatively slow and detectivity Sensitivity with response is relatively low, it is impossible to meet the detection environment that test condition is harsher so that the range of application of spectral technique By the biggest restriction.Additionally, quantum dot detector is more due to device, easily produces heat and affect detector performance, especially Its data acquisition USB carries out wired transmission, spatially hinders the collection of data.

Utility model content

The purpose of this utility model is a kind of quantum dot embedded spectrum instrument designed for the deficiencies in the prior art, adopts By the empty four line silicon perforation compact package technology of N-i-n type quantum dot light electric explorer and, quantum dot is carried out regulation and control composition not The detection array of co-wavelength, enables quantum dot to detect the scope of 1.5 um or bigger wavelength, can and the bar of faint light Complete spectrum data gathering under part, not only improve the sensitivity of device, reduce 25% power consumption, and can also be transmitted by WIFI Data carry out spectroscopic data to mobile phone APP and show and process, have widened the working range of spectrum further, improve measurement essence Degree, sensitivity and reading speed, compact conformation, the performance of environment resistant temperature, pressure change is good, especially meet environmental protection, field, Site Detection and intellectuality, miniaturization and the light-weighted demand of spaceborne analysis detection.

The purpose of this utility model is achieved in that a kind of quantum dot embedded spectrum instrument, including optical system, quantum Point probe, reading circuit, pretreatment module, A/D conversion, FPGA processor, time sequence driving circuit, be characterized in reading circuit The connected mode having been used four line silicon perforation by PCB substrate is docked with the detection array of quantum dot detector, and composition 16mm × The compact package structure of 12mm × 5mm, the reading circuit after encapsulation is connected with pretreatment module and time sequence driving circuit, in advance respectively Processing module is connected with time sequence driving circuit after being sequentially connected in series with A/D conversion and FPGA processor, FPGA processor concatenation WiFi Being connected with APP mobile phone terminal after module, optical signal is turned by measured light through the grating beam splitting of optical system, quantum dot detector Reading circuit is accessed by PCB substrate, the clock signal controlled quentity controlled variable that reading circuit is produced by time sequence driving circuit after being changed to the signal of telecommunication The detection array of sub-point probe reads, and the signal reading the preprocessed module of data amplifies and inputs A/D conversion, A/ after filtering D conversion inputs FPGA processor after converting analog signals into digital signal and is transferred to APP mobile phone terminal by WiFi module, By APP mobile phone terminal spectroscopic data shown and process.

It is fast that this utility model compared with prior art has high sensitivity, high s/n ratio, big responsiveness and reading speed Advantage, carries out the detection array of regulation and control composition different wave length, enables quantum dot to detect 1.5 um or bigger ripple quantum dot Long scope, can and faint light under conditions of complete spectrum data gathering, widened the working range of spectrum further, carried High certainty of measurement, sensitivity and reading speed, compact package structure has utilized four line silicon puncturing techniques, has substantially reduced cloth Plate area and power consumption, compact conformation, transmit data to mobile phone A PP by WIFI and carry out spectroscopic data and show and process, meet Intelligent, miniaturization and light-weighted demand.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation；

Fig. 2 is encapsulating structure structural representation；

Fig. 3 is a hole four line silicon perforation structure schematic diagram.

Detailed description of the invention

Refering to accompanying drawing 1, this utility model by optical system 1, quantum dot detector 2, reading circuit 4, pretreatment module 6, A/D conversion 7, WiFi module 8, APP mobile phone terminal 9, FPGA processor 10 and time sequence driving circuit 11 form, and described quantum dot is visited Survey device 2 use N-i-n type quantum dot and become the detection array of different wave length with quantum dot neutron level with quantum dot size adjustment, Realize the detection of wider spectral region；Described quantum dot detector 2 by PCB substrate 3 used the silicon puncturing technique of four lines with Reading circuit 4 docks, the compact package structure 5 of composition 16mm × 12mm × 5mm, and the reading circuit 4 after encapsulation is located with pre-respectively Reason module 6 and time sequence driving circuit 11 connect, and pretreatment module 6 is sequentially connected in series is followed by with A/D conversion 7 and FPGA processor 10 Entering time sequence driving circuit 11, FPGA processor 10 is connected with APP mobile phone terminal 9 by WiFi module 8.

Refering to accompanying drawing 2, the detection array that top layer is quantum dot detector 2 of described compact package structure 5, bottom is for reading Circuit 4, intermediate layer is for connection to the PCB substrate 3 of reading circuit 4 and quantum dot detector 2, and quantum dot detector 2 is by PCB base Plate 3 has used the silicon puncturing technique of four lines to dock with reading circuit 4, the compact package structure of composition 16mm × 12mm × 5mm 5。

Refering to accompanying drawing 3, described docking has used four line silicon perforation connected modes, it is achieved a hole connects four pixels, The fabric swatch area being greatly reduced and reduce power consumption.

This utility model is so work: Halogen light is irradiated to optical system 1, and measured light is through optical system 1 Grating beam splitting, is irradiated on the detection array of quantum dot detector 2, after quantum dot detector 2 converts optical signals to the signal of telecommunication Being accessed reading circuit 4 by PCB substrate 3, the clock signal that reading circuit 4 is produced by time sequence driving circuit 11 controls quantum dot detection The detection array of device 2 reads, and the signal reading the preprocessed module of data 6 amplifies and inputs A/D conversion 7 after filtering, and A/D changes 7 convert analog signals into digital signal after access FPGA processor 10 be transferred to APP mobile phone terminal 9 by WiFi module 8, by Spectroscopic data is stored, shows and processes by APP mobile phone terminal 9.

More than simply this utility model is further described, and is not used to limit practicing of this patent, all be This utility model equivalence is implemented, within being intended to be limited solely by the right of this patent.

Claims (1)

1. a quantum dot embedded spectrum instrument, including optical system (1), quantum dot detector (2), reading circuit (4), locates in advance Reason module (6), A/D change (7), FPGA processor (10), time sequence driving circuit (11), it is characterised in that reading circuit (4) by PCB substrate (3) has used the connected mode of four line silicon perforation to dock with the detection array of quantum dot detector (2), composition The compact package structure (5) of 16mm × 12mm × 5mm, the reading circuit (4) after encapsulation respectively with pretreatment module (6) and sequential Drive circuit (11) connects, and pretreatment module (6) is driven with sequential after being sequentially connected in series with A/D conversion (7) and FPGA processor (10) Galvanic electricity road (11) connects, and FPGA processor (10) concatenation WiFi module (8) is connected with APP mobile phone terminal (9) afterwards, measured light warp The grating beam splitting of optical system (1), quantum dot detector (2) is accessed by PCB substrate (3) after converting optical signals to the signal of telecommunication Reading circuit (4), the clock signal that reading circuit (4) is produced by time sequence driving circuit (11) controls quantum point probe (2) Detection array reads, and the signal reading the preprocessed module of data (6) amplifies and input A/D conversion (7) after filtering, and A/D changes (7) it is transferred to APP mobile phone terminal by FPGA processor (10) by WiFi module (8) after converting analog signals into digital signal (9), APP mobile phone terminal (9) spectroscopic data shown and process.