CN205809319U - Hand-held type miniature γ nuclide identification instrument - Google Patents

Abstract

The utility model discloses a kind of hand-held type miniature γ nuclide identification instrument, it includes upper shell etc., upper shell is fastened to each other with lower house and forms a cavity, battery is arranged in battery case, key face patch is fixed on the lower section of display, display is arranged on the top of upper shell, sleeve is fixed on upper shell top, neutron detector and PCB are all arranged in the cavity of upper shell and lower house formation, USB is fixed on upper shell side, SD card plug is arranged on USB side, hook beam is positioned at bottom upper shell, button is arranged on the key face side of sticking, first screw is arranged on bottom battery case, second screw connects upper shell and lower house, 3rd screw, 4th screw, 5th screw and the 6th screw are separately mounted on PCB corner.This utility model volume is little, lightweight, it is simple to carry, highly sensitive, low in energy consumption, simple to operate, it is not necessary to radioactive source spectrum stabilization, and identification ability is strong, and speed is fast.

Description

Hand-held type miniature γ nuclide identification instrument

Technical field

This utility model relates to a kind of identifier, particularly relates to a kind of hand-held type miniature γ nuclide identification instrument.

Background technology

The existing conventional universal volume of core identifier is bigger than normal, and it is low to carry inconvenience, discrimination and sensitivity, needs to make before detection Carrying out spectrum stabilization with specific radioactive source to reference to gamma spectrum, detection time is long, and stand-by time is short, poor stability, in complexity Use error rate high under environment.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of hand-held type miniature γ nuclide identification instrument, its volume Little, lightweight, it is simple to carry, highly sensitive, low in energy consumption, simple to operate, it is not necessary to radioactive source spectrum stabilization, identification ability is strong, and speed is fast, Can external multiple specialty radiant quantity probe use under complex environment.

This utility model solves above-mentioned technical problem by following technical proposals: a kind of hand-held type miniature γ nucleic Identifier, it is characterised in that it include upper shell, battery, key face patch, display, sleeve, lower house, neutron detector, USB, SD card plug, PCB, hook beam, button, the first screw, the second screw, the 3rd screw, the 4th screw, Five screws, the 6th screw and battery case, upper shell is fastened to each other with lower house and forms a cavity, and battery is arranged on battery case In, key face patch is fixed on the lower section of display, and display is arranged on the top of upper shell, and sleeve is fixed on upper shell top, Neutron detector and PCB are all arranged in the cavity of upper shell and lower house formation, and USB is fixed on upper shell one Side, SD card plug is arranged on USB side, and hook beam is positioned at bottom upper shell, and button is arranged on the key face side of sticking, and first Screw is arranged on bottom battery case, and the second screw connects upper shell and lower house, the 3rd screw, the 4th screw, the 5th screw and 6th screw is separately mounted on PCB corner, and battery case is positioned at the bottom of upper shell.

Preferably, described battery uses chargeable lithium cell.

Preferably, described SD card plug uses the SD card plug identifying the jumbo storage card of 4G.

Preferably, described upper shell and lower house all use streamlined structure.

Preferably, described neutron detector uses He3 type neutron detector.

Preferably, described display uses color touch screen.

Preferably, described neutron detector uses analog signal processing circuit.

Preferably, described analog signal processing circuit include the first resistance, the second resistance, the 3rd resistance, the 4th resistance, Five resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, the second electric capacity, first integral amplifier, second integral are put Big device, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity all connects first integral amplifier, the 3rd electricity Resistance and the first electric capacity are in parallel, and the 5th resistance, the 7th resistance are connected with the 6th resistance respectively, the second electric capacity and the 8th resistor coupled in parallel, 4th resistance, the 8th resistance, the second electric capacity, the 6th resistance are all connected with second integral amplifier.

Positive progressive effect of the present utility model is: this utility model hand-held type miniature γ nuclide identification instrument volume is little, Lightweight, it is simple to carry, highly sensitive, low in energy consumption, simple to operate, it is not necessary to radioactive source spectrum stabilization, identification ability is strong, and speed is fast, energy External multiple specialty radiant quantity probe also uses under complex environment.

Accompanying drawing explanation

Fig. 1 is the perspective view of this utility model hand-held type miniature γ nuclide identification instrument.

Fig. 2 is the side-looking structural representation of this utility model hand-held type miniature γ nuclide identification instrument.

Fig. 3 is the side internal structure schematic diagram of this utility model hand-held type miniature γ nuclide identification instrument.

Fig. 4 is the opposite side internal structure schematic diagram of this utility model hand-held type miniature γ nuclide identification instrument.

Fig. 5 is the circuit diagram of analog signal processing circuit.

Detailed description of the invention

Provide this utility model preferred embodiment below in conjunction with the accompanying drawings, to describe the technical solution of the utility model in detail.

As shown in Figures 1 to 4, this utility model hand-held type miniature γ nuclide identification instrument includes upper shell 1, battery 2, button Face patch 3, display 4, sleeve 5, lower house 6, neutron detector 7, USB 8, SD card plug 9, PCB 10, hook beam 11, button the 12, first screw the 13, second screw the 14, the 3rd screw the 15, the 4th screw the 16, the 5th screw the 17, the 6th screw 18 and Battery case 19, upper shell 1 is fastened to each other with lower house 6 and forms a cavity, and battery 2 is arranged in battery case 19, key face Patch 3 is fixed on the lower section of display 4, and display 4 is arranged on the top of upper shell 1, and sleeve 5 is fixed on upper shell 1 top, neutron Detector 7 and PCB 10 are all arranged in the cavity of upper shell 1 and lower house 6 formation, and USB 8 is fixed on upper shell 1 side, SD card plug 9 is arranged on USB 8 side, and hook beam 11 is positioned at bottom upper shell 1, and button 12 is arranged on key face Above patch 3, the first screw 13 is arranged on bottom battery case 19, and the second screw 14 connects upper shell 1 and lower house 6, the 3rd screw 15, the 4th screw the 16, the 5th screw 17 and the 6th screw 18 are separately mounted in PCB 10 4 jiaos, and battery case is positioned at In the bottom of housing 1.

Battery uses chargeable lithium cell, makes this utility model possess longer working time and more stable performance, separately Outer conveniently it is charged.

SD card plug uses the SD card plug identifying the jumbo storage card of 4G, it is possible to store more than 100,000 groups close rate numbers According to, all-round modal data in more than 200 1024 roads, and the structure of external socket makes the more convenient dismounting of SD card, be also data more Easily exchange with other equipment.

Upper shell and lower house all use streamlined structure, and this structure makes user's feel more preferable, is unlikely to take for a long time And hands is uncomfortable.

Neutron detector use He3 type neutron detector, reach environment level level, be greatly reinforced equipment sensitivity and Identification ability.

Display uses color touch screen, band backlight function, and convenient operation to control, and allows evaluator be able to underlit In the case of use.

Neutron detector uses analog signal processing circuit.

As it is shown in figure 5, analog signal processing circuit includes the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th electricity Resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the first electric capacity C1, the second electric capacity C2, first amass Point amplifier U1, second integral amplifier U2, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, first It is in parallel that electric capacity C1 connects first integral amplifier U1, the 3rd resistance R3 and the first electric capacity C1, the 5th resistance R5, the 7th resistance R7 Being connected with the 6th resistance R6 respectively, the second electric capacity C2 and the 8th resistance R8 is in parallel, the 4th resistance R4, the 8th resistance R8, the second electricity Hold C2, the 6th resistance R6 to be all connected with second integral amplifier U2.

Analog signal processing circuit work process is as follows: signal is input to the end of oppisite phase of first integral operational amplifier U1, Second resistance R2 and the 3rd resistance R3 determines first order amplification, and the output of first integral operational amplifier U1 is connected to second The end of oppisite phase of integral operation amplifier U2, the 4th resistance R4 and the 8th resistance R8 determine second level amplification, the first electric capacity C1 With the phase place of the second electric capacity C2 regulation signal, the 5th resistance R5 and the 7th resistance R7 arranges DC bias and rear end adc circuit Joining, first integral operational amplifier U1 and second integral operational amplifier U2 uses negative feedback mode, prevents signal oscillating, and second The final output of the i.e. amplifying circuit of the output of integral operation amplifier U2.

USB can be used to connect other probe or equipment, it is also possible to is used for charging；Upper shell, lower house and set Cylinder protects the safety of detector；Hook beam facilitates user to carry this identifier；The structure of battery case allows the user can quick-replaceable Battery.

This utility model start can use, and automatic spectrum stabilization after device power-up enters " a key kernel normal form " after completing, equipment The recombination radiation field of more than five kinds can be identified, and can accurately be reported out nuclear species class within the time of the fastest 15 seconds, conventional Needing to use specific radioactive source to carry out spectrum stabilization to reference to gamma spectrum before the detection of core identifier, or else this equipment can use radioactive source In the case of start shooting automatic spectrum stabilization and calibration, equipment carries more than 48 kinds nuclide library, and manually adds any nucleic interested.

Particular embodiments described above, to of the present utility model solving the technical problem that, technical scheme and beneficial effect Further described, be it should be understood that and the foregoing is only specific embodiment of the utility model, not For limiting this utility model, all within spirit of the present utility model and principle, any amendment, the equivalent made, change Enter, within should be included in protection domain of the present utility model.

Claims (1)

1. a hand-held type miniature γ nuclide identification instrument, it is characterised in that it includes upper shell, battery, key face patch, display Device, sleeve, lower house, neutron detector, USB, SD card plug, PCB, hook beam, button, the first screw, Two screws, the 3rd screw, the 4th screw, the 5th screw, the 6th screw and battery case, upper shell and lower house be fastened to each other and shape Becoming a cavity, battery is arranged in battery case, and key face patch is fixed on the lower section of display, and display is arranged on upper shell Top, sleeve is fixed on upper shell top, neutron detector and PCB and is all arranged on upper shell and the sky of lower house formation Intracavity, USB is fixed on upper shell side, and SD card plug is arranged on USB side, and hook beam is positioned at bottom upper shell, Button is arranged on the key face side of sticking, and the first screw is arranged on bottom battery case, and the second screw connects upper shell and lower house, the Three screws, the 4th screw, the 5th screw and the 6th screw are separately mounted on PCB corner, and battery case is positioned at upper shell Bottom in；Described battery uses chargeable lithium cell；Described SD card plug uses the SD card identifying the jumbo storage card of 4G Socket；Described upper shell and lower house all use streamlined structure；Described neutron detector uses He3 type neutron detector；Institute State display and use color touch screen；Described neutron detector uses analog signal processing circuit；Described analog signal processing electricity Road includes the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th electricity Resistance, the first electric capacity, the second electric capacity, first integral amplifier, second integral amplifier, the first resistance, the second resistance, the 3rd electricity Resistance, the 4th resistance, the first electric capacity all connect first integral amplifier, and the 3rd resistance and the first electric capacity are in parallel, the 5th resistance, the 7th Resistance is connected with the 6th resistance respectively, the second electric capacity and the 8th resistor coupled in parallel, the 4th resistance, the 8th resistance, the second electric capacity, the 6th Resistance is all connected with second integral amplifier.