CN207675953U - High-pressure modular circuit and GM counting tubes - Google Patents
High-pressure modular circuit and GM counting tubes Download PDFInfo
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- CN207675953U CN207675953U CN201721695041.2U CN201721695041U CN207675953U CN 207675953 U CN207675953 U CN 207675953U CN 201721695041 U CN201721695041 U CN 201721695041U CN 207675953 U CN207675953 U CN 207675953U
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Abstract
The utility model provides high-pressure modular circuit and GM counting tubes, is related to radiation detector technical field, including Q1 field-effect tube, high voltage control signal modulation circuit, high-voltage rectifier and high-voltage feedback control circuit；High voltage control signal modulation circuit is connected with the grid of Q1 field-effect tube, the control signal for modulating parameter preset；Q1 field-effect tube, for the break-make according to control signal triggering control high-voltage rectifier and power supply；High-voltage rectifier is connected with the drain electrode of Q1 field-effect tube, in the case where being connected with power supply, rectifier output voltage；High-voltage feedback control circuit is connected with high-voltage rectifier and high voltage control signal modulation circuit respectively, for according to output voltage, generating feedback signal, controls the working condition of high voltage control signal modulation circuit, reduces and use power consumption, prolong the service life.
Description
Technical field
The utility model is related to radiation detector technical fields, more particularly, to high-pressure modular circuit and GM counting tubes.
Background technology
With the development of Application of Nuclear Technology, GM (Geiger-Miller) counting tubes in nuclear radiation detection instrument as generally using
One of sensor, because its high sensitivity, small, light-weight and measuring circuit is simple and reliable the advantages that, in portable core instrument
It is widely used in table.But from the point of view of present status in China, in the front end circuit especially high-tension circuit side of GM counting tubes
Still there is certain gap in face with Foreign Advanced Lerel, and the general transformation ratio of external high-tension circuit is high, output stability is good, quiescent current
Small, the country is not a problem in terms of step-up ratio, but the fluctuation for exporting high pressure is larger, and quiescent current is larger, not only makes whole
Machine power consumption increases, and because high current causes high-pressure modular to generate heat, eventually reduces the overall performance of high-pressure section device, from
And limit its application in terms of portable Nuclear Instrument.
In general, high-tension circuit power consumption occupies sizable proportion in Overall Power Consumption, especially quiescent dissipation directly affects
To the working time of portable instrument.
Utility model content
In view of this, the purpose of this utility model is to provide high-pressure modular circuit and GM counting tubes, reduces and uses power consumption,
Prolong the service life.
In a first aspect, the utility model embodiment provides high-pressure modular circuit, including：Q1 field-effect tube, high voltage control
Signal modulation circuit, high-voltage rectifier and high-voltage feedback control circuit；
The high voltage control signal modulation circuit is connected with the grid of the Q1 field-effect tube, default for modulating
The control signal of parameter；
The Q1 field-effect tube, for controlling the logical of the high-voltage rectifier and power supply according to the control signal triggering
It is disconnected；
The high-voltage rectifier is connected with the drain electrode of the Q1 field-effect tube, for the case where being connected with power supply
Under, rectifier output voltage；
The high-voltage feedback control circuit is connected with the high-voltage rectifier and the high voltage control signal modulation circuit respectively
It connects, for according to the output voltage, generating feedback signal, controlling the working condition of the high voltage control signal modulation circuit.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the high voltage control signal adjustment circuit includes nor gate U1A, nor gate U1B, nor gate U1C, nor gate U1D, resistance R2
With capacitance C1；
An input terminal of the nor gate U1A is connected with the output end of the nor gate U1B, the nor gate U1A
Another input terminal be connected with the high-voltage feedback control circuit, an input terminal of the nor gate U1B and the nor gate
The output end of U1A is connected, another input terminal of the nor gate U1B respectively with one end of the capacitance C1 and described or non-
The output end of door U1D is connected, and the output end of the nor gate U1B is connected with one end of the resistance R2, the resistance R2
The other end be connected respectively with an input terminal of the other end of the capacitance C1 and the nor gate U1C, the nor gate
The output end of U1C is connected with an input terminal of the nor gate U1D, the output end of the NOT gate U1D and described Q1 effect
Should the grid of pipe be connected, another input terminal of another input terminal of the nor gate U1C and the nor gate U1D connect respectively
Ground.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, the high-voltage rectifier includes transformer T1, diode D1 and capacitance C2；
One end of the primary coil of the transformer T1 is connected with power supply, the primary coil of the transformer T1 it is another
End is that drain electrode is connected with the Q1 field-effect tube, and one end of the secondary coil of the transformer T1 is respectively with the capacitance C2's
One end is connected with the high-voltage feedback control circuit, the other end of the secondary coil of the transformer T1 and the one of the diode D1
End is connected, and the other end of the other end of the diode D1 and the capacitance C2 are grounded respectively.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, the high-voltage feedback control circuit includes resistance R3, resistance R4, resistance R5, feedback control transistor Q2；
One end of the resistance R3 is connected with the high-voltage rectifier, the other end of the resistance R3 respectively with it is described
One end of resistance R4 is connected with the base stage of the feedback control transistor Q2, the collector point of the feedback control transistor Q2
It is not connected with one end of the resistance R5 and the high voltage control signal modulation circuit, the other end and power supply of the resistance R5
Be connected, the other end of the resistance R3, the feedback control transistor Q2 emitter be grounded respectively.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect,
In, the high-voltage feedback control circuit is additionally operable in the case where the feedback control transistor Q2 is connected, to the nor gate U1A's
Input terminal sends control low level, so that the high voltage control signal modulation circuit is stopped；
Alternatively,
Be additionally operable to feedback control transistor Q2 by the case of, to the input terminal of the nor gate U1A send control
High level, so that the high voltage control signal modulation circuit is started to work, the nor gate U1D output ends export the control letter
Number.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, the primary coil that the Q1 field-effect tube is additionally operable to control the transformer T1 in the case of conducting charges.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, the primary coil of the transformer T1 and the ratio of the secondary coil are 15:1500.
With reference to first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect,
In, the high-voltage rectifier is half-wave rectifying circuit.
With reference to first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect,
In, the parameter preset includes predeterminated frequency and default duty ratio.
Second aspect, the utility model embodiment also provide GM counting tubes, including high-pressure modular circuit as described above, also
It include the counting tube main body being connected with the high-pressure modular circuit.
The utility model embodiment provides high-pressure modular circuit and GM counting tubes, including Q1 field-effect tube, high voltage control
Signal modulation circuit, high-voltage rectifier and high-voltage feedback control circuit；High voltage control signal modulation circuit, the grid with Q1 field-effect tube
Pole is connected, the control signal for modulating parameter preset；Q1 field-effect tube, for according to control signal triggering control high pressure
The break-make of rectification circuit and power supply；High-voltage rectifier is connected with the drain electrode of Q1 field-effect tube, for being connected with power supply
In the case of, rectifier output voltage；High-voltage feedback control circuit is connected with high-voltage rectifier and high voltage control signal modulation circuit respectively
It connects, for according to output voltage, generating feedback level and sending supreme voltage-controlled signal modulation circuit processed, control high voltage control signal
The working condition of modulation circuit reduces and uses power consumption, prolongs the service life.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is realized and is obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment cited below particularly, and
The appended attached drawing of cooperation, is described in detail below.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is one of the high-pressure modular electrical block diagram that the utility model embodiment provides；
Fig. 2 is the two of the high-pressure modular electrical block diagram that the utility model embodiment provides；
Fig. 3 is the GM counting tube outline structural diagrams that the utility model embodiment provides.
Icon：10- high voltage control signal modulation circuits；20-Q1 field-effect tube；30- high-voltage rectifiers；40- high pressures are anti-
Current feed circuit；50- anodes；60- cathodes.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Currently, high-tension circuit power consumption occupies sizable proportion in Overall Power Consumption, especially quiescent dissipation directly affects
To the working time of portable instrument.
Based on this, the high-pressure modular circuit and GM counting tubes that the utility model embodiment provides reduce and use power consumption, extend
Service life.
It is described in detail below by embodiment.
Fig. 1 is one of the high-pressure modular electrical block diagram that the utility model embodiment provides.
Referring to Fig.1, high-pressure modular circuit includes Q1 field-effect tube 20, high voltage control signal modulation circuit 10, high-voltage rectifying
Circuit 30 and high-voltage feedback control circuit 40；
High voltage control signal modulation circuit 10 is connected with the grid of Q1 field-effect tube 20, for modulating parameter preset
Control signal；
Q1 field-effect tube 20, for the break-make according to control signal triggering control high-voltage rectifier 30 and power supply；
High-voltage rectifier 30 is connected with the drain electrode of Q1 field-effect tube 20, whole in the case where being connected with power supply
Flow output voltage；
High-voltage feedback control circuit 40, respectively with the high-voltage rectifier 30 and 10 phase of high voltage control signal modulation circuit
Connection, for according to output voltage, generating feedback signal, the working condition of control high voltage control signal modulation circuit 10.
Specifically, the application has designed and produced a kind of be applicable in based on conventional electrical component and Homemade Transformers technology
In the high-pressure modular circuit of GM counting tubes, i.e. high pressure prepositive circuit selects circuit structure using low-power consumption component,
And circuit parameter is optimized, it realizes the effect of low-power consumption, extends the service life of circuit；
Here, the source level, high-voltage rectifier 30 of Q1 field-effect tube 20 and one end of high-voltage feedback control circuit 40 are all grounded；
Further, with reference to Fig. 2, high voltage control signal adjustment circuit includes nor gate U1A, nor gate U1B, nor gate
U1C, nor gate U1D, resistance R2 and capacitance C1；
The output end of an input terminal AND OR NOT gate U1B of nor gate U1A is connected, another input of nor gate U1A
End is connected with high-voltage feedback control circuit 40, and the output end of an input terminal AND OR NOT gate U1A of nor gate U1B is connected or non-
Another input terminal of door U1B is connected with the output end of one end of capacitance C1 and nor gate U1D respectively, and nor gate U1B's is defeated
Outlet is connected with one end of resistance R2, the other end of resistance R2 one with the other end of capacitance C1 and nor gate U1C respectively
Input terminal is connected, and the output end of nor gate U1C is connected with an input terminal of nor gate U1D, the output end of NOT gate U1D with
The grid of Q1 field-effect tube 20 is connected, and another input terminal of nor gate U1C and another input terminal of nor gate U1D connect respectively
Ground.
Further, parameter preset includes predeterminated frequency and default duty ratio.
Specifically, nor gate U1A/U1B/U1C/U1D uses four CMOS dual input nor gate SN74AHC1G02, through filling
The adjusting of discharge loop modulates the control signal that predeterminated frequency is 20kHz, default duty ratio is 1；
Here, charging and discharging circuit includes resistance R2 and capacitance C1, and the control at the ends nor gate U1D is adjusted by charging and discharging circuit
The output frequency of signal, so that output frequency reaches predeterminated frequency；
Wherein, nor gate U1A and U1B constitutes S/R latch structure, when the input terminal of U1A is high level, the output of U1B
It is main related to the input of U1B.
Further, high-voltage rectifier 30 includes transformer T1, diode D1 and capacitance C2；
One end of the primary coil of transformer T1 is connected with power supply, the other end of the primary coil of transformer T1 with Q1
Effect pipe 20 is that drain electrode is connected, one end of the secondary coil of transformer T1 respectively with one end of capacitance C2 and high-voltage feedback control circuit
40 are connected, and the other end of the secondary coil of transformer T1 is connected with one end of diode D1, the other end of diode D1 and
The other end of capacitance C2 is grounded respectively.
Further, Q1 field-effect tube 20 is additionally operable in the case of conducting, and the primary coil of control transformer T1 carries out
Charging.
Here, the switch of the transformer T1 primary charging coils in order to control of Q1 field-effect tube 20；
Further, the ratio of the primary coil of transformer T1 and secondary coil is 15:1500.
Further, high-voltage rectifier 30 is half-wave rectifying circuit.
Specifically, the pressure voltage of capacitance C2 is 1000V, and high-voltage rectifier 30 is halfwave rectifier, i.e. transformer T1 is just
Half cycle charges to capacitance C2, ends in negative half period, and primary is 5V break-make pulses, and secondary can export peak value 500V arteries and veins
Punching can export high pressure by halfwave rectifier in capacitance C2 anodes.
Further, high-voltage feedback control circuit 40 includes resistance R3, resistance R4, resistance R5, feedback control transistor Q2；
One end of resistance R3 is connected with high-voltage rectifier 30, the other end of resistance R3 respectively with one end of resistance R4 and
The base stage of feedback control transistor Q2 is connected, the collector of feedback control transistor Q2 respectively with one end of resistance R5 and high pressure
Control signal modulation circuit 10 is connected, and the other end of resistance R5 is connected with power supply, and the other end of resistance R3, feedback control are brilliant
The emitter of body pipe Q2 is grounded respectively.
Further, high-voltage feedback control circuit 40 is additionally operable in the case where feedback control transistor Q2 is connected, to nor gate
The input terminal of U1A sends control low level, so that high voltage control signal modulation circuit 10 is stopped；
Alternatively,
Be additionally operable to feedback control transistor Q2 by the case of, send the high electricity of control to the input terminal of nor gate U1A
It is flat, so that high voltage control signal modulation circuit 10 is started to work, nor gate U1D output ends output control signal.
Here, resistance R4 and resistance R3 is high pressure sampling resistor, and the voltage exported by sampling resistor is about high pressure
0.15%, Q2 are feedback control transistor (such as triode), and resistance R5 is its biasing resistor, when output high pressure (capacitance C2 anodes
Voltage) when reaching 450V, sampling high pressure is about 0.75V, and feedback control transistor Q2 is connected at this time, feedback control transistor Q2's
It is low level that collector, which exports first control signal, that is, nor gate U1A input terminals, and then high voltage control signal modulation circuit 10 stops
Only work；When exporting high pressure less than 450V, that is, samples high pressure and be less than 0.75V, feedback control transistor Q2 is by feedback control
Collector output second control signal, that is, nor gate U1A input terminals of transistor Q2 are high level, high voltage control signal modulation electricity
Road 10 is started to work, and the fixed frequency square-wave signal that duty ratio is 1 is preset in the output of nor gate U1D output ends.
High-pressure modular circuit provided by the present application is mainly characterized in that low-power consumption, low-power consumption are mainly realized in terms of three：
1. device is selected and made, most of active device such as four logic gates and a switching tube in circuit all use
Cmos device reduces the switching loss of device, and transformer is the high transformation ratio transformer of voluntarily coiling, improves boosting effect
Rate；
2. the optimization of circuit parameter, different for the transformer of different coilings such as the selection of capacitance C1, resistance R2
RC constants, to ensure that transformer is operated in optimum state；
3. the selection of circuit structure, more traditional LC self-maintained circuits before giving up in controlling signal modulation circuit,
Using RC oscillating circuits.
The utility model embodiment provides high-pressure modular circuit, including Q1 field-effect tube, high voltage control signal modulation electricity
Road, high-voltage rectifier and high-voltage feedback control circuit；High voltage control signal modulation circuit is connected with the grid of Q1 field-effect tube,
Control signal for modulating parameter preset；Q1 field-effect tube, for according to control signal triggering control high-voltage rectifier
With the break-make of power supply；High-voltage rectifier is connected with the drain electrode of Q1 field-effect tube, in the case where being connected with power supply,
Rectifier output voltage；High-voltage feedback control circuit is connected with high-voltage rectifier and high voltage control signal modulation circuit, is used for respectively
According to output voltage, feedback signal is generated, controls the working condition of high voltage control signal modulation circuit, reduces and uses power consumption, prolong
Long life.
As shown in figure 3, the utility model also provides GM counting tubes, including high-pressure modular circuit as described above, further include
The counting tube main body being connected with high-pressure modular circuit.
Here, GM counting tubes include cathode 60 and anode 50, are detected for gas radiation；
Specifically, one end (ungrounded end) of the capacitance C2 in high-voltage rectifier 30 and the one of 3 megaohms of external resistance
End is connected, and the other end of connecting resistance is connected with the anode 50 of counting tube in addition；
The GM counting tubes that the utility model embodiment provides have identical with the high-pressure modular circuit that above-described embodiment provides
Technical characteristic reach identical technique effect so can also solve identical technical problem.
In the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit,
Can be that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to aforementioned
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to the skill recorded in previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation is replaced, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model is answered described is wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of high-pressure modular circuit, which is characterized in that including：Q1 field-effect tube, high voltage control signal modulation circuit, high repoussage
Current circuit and high-voltage feedback control circuit；
The high voltage control signal modulation circuit is connected with the grid of the Q1 field-effect tube, for modulating parameter preset
Control signal；
The Q1 field-effect tube, the break-make for controlling the high-voltage rectifier and power supply according to the control signal triggering；
The high-voltage rectifier is connected with the drain electrode of the Q1 field-effect tube, whole in the case where being connected with power supply
Flow output voltage；
The high-voltage feedback control circuit is connected with the high-voltage rectifier and the high voltage control signal modulation circuit respectively,
For according to the output voltage, generating feedback signal, controlling the working condition of the high voltage control signal modulation circuit.
2. high-pressure modular circuit according to claim 1, which is characterized in that the high voltage control signal modulation circuit includes
Nor gate U1A, nor gate U1B, nor gate U1C, nor gate U1D, resistance R2 and capacitance C1；
An input terminal of the nor gate U1A is connected with the output end of the nor gate U1B, and the nor gate U1A's is another
One input terminal is connected with the high-voltage feedback control circuit, and an input terminal of the nor gate U1B is with the nor gate U1A's
Output end is connected, another input terminal of the nor gate U1B respectively with one end of the capacitance C1 and the nor gate U1D
Output end be connected, the output end of the nor gate U1B is connected with one end of the resistance R2, and the resistance R2's is another
End is connected with an input terminal of the other end of the capacitance C1 and the nor gate U1C respectively, and the nor gate U1C's is defeated
Outlet is connected with an input terminal of the nor gate U1D, the grid of the output end of the NOT gate U1D and the Q1 field-effect tube
Pole is connected, and another input terminal of another input terminal of the nor gate U1C and the nor gate U1D are grounded respectively.
3. high-pressure modular circuit according to claim 2, which is characterized in that the high-voltage rectifier includes transformer
T1, diode D1 and capacitance C2；
One end of the primary coil of the transformer T1 is connected with power supply, the other end of the primary coil of the transformer T1 with
The Q1 field-effect tube is that drain electrode is connected, one end of the secondary coil of transformer T1 one end with the capacitance C2 respectively
It is connected with the high-voltage feedback control circuit, one end phase of the other end of the secondary coil of the transformer T1 and the diode D1
The other end of connection, the other end of the diode D1 and the capacitance C2 are grounded respectively.
4. high-pressure modular circuit according to claim 3, which is characterized in that the high-voltage feedback control circuit include resistance R3,
Resistance R4, resistance R5, feedback control transistor Q2；
One end of the resistance R3 is connected with the high-voltage rectifier, the other end of the resistance R3 respectively with the resistance
One end of R4 is connected with the base stage of the feedback control transistor Q2, the collector of the feedback control transistor Q2 respectively with
One end of the resistance R5 is connected with the high voltage control signal modulation circuit, and the other end of the resistance R5 is connected with power supply
Connect, the other end of the resistance R3, the feedback control transistor Q2 emitter be grounded respectively.
5. high-pressure modular circuit according to claim 4, which is characterized in that the high-voltage feedback control circuit is additionally operable to described
In the case of the Q2 conductings of feedback control transistor, control low level is sent to the input terminal of the nor gate U1A, so that the height
Voltage-controlled signal modulation circuit processed is stopped；
Alternatively,
Be additionally operable to feedback control transistor Q2 by the case of, send the high electricity of control to the input terminal of the nor gate U1A
Flat, so that the high voltage control signal modulation circuit is started to work, the nor gate U1D output ends export the control signal.
6. high-pressure modular circuit according to claim 3, which is characterized in that the Q1 field-effect tube is additionally operable in conducting
In the case of, the primary coil for controlling the transformer T1 charges.
7. high-pressure modular circuit according to claim 4, which is characterized in that the primary coil of the transformer T1 and
The ratio of the secondary coil is 15:1500.
8. high-pressure modular circuit according to claim 1, which is characterized in that the high-voltage rectifier is halfwave rectifier electricity
Road.
9. high-pressure modular circuit according to claim 1, which is characterized in that the parameter preset includes predeterminated frequency and pre-
If duty ratio.
10. a kind of GM counting tubes, which is characterized in that including the high-pressure modular circuit described in any one of claim 1-9, also wrap
Include the counting tube main body being connected with the high-pressure modular circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695041.2U CN207675953U (en) | 2017-12-07 | 2017-12-07 | High-pressure modular circuit and GM counting tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695041.2U CN207675953U (en) | 2017-12-07 | 2017-12-07 | High-pressure modular circuit and GM counting tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675953U true CN207675953U (en) | 2018-07-31 |
Family
ID=62968535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721695041.2U Active CN207675953U (en) | 2017-12-07 | 2017-12-07 | High-pressure modular circuit and GM counting tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675953U (en) |
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2017
- 2017-12-07 CN CN201721695041.2U patent/CN207675953U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |