CN217688646U - Material detection device - Google Patents
Material detection device Download PDFInfo
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- CN217688646U CN217688646U CN202221268974.4U CN202221268974U CN217688646U CN 217688646 U CN217688646 U CN 217688646U CN 202221268974 U CN202221268974 U CN 202221268974U CN 217688646 U CN217688646 U CN 217688646U
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Abstract
The utility model provides a material detection device, including the device body, this internal collector, blocking circuit, count interrupt circuit, material signal holding circuit and the controller that are used for gathering the gamma ray signal of material that is equipped with of device, collector are connected in blocking circuit's input, and blocking circuit's output is connected respectively in count interrupt circuit and material signal holding circuit's input, and count interrupt circuit and material signal holding circuit's output is connected respectively in the controller. The utility model discloses a material detection device through ingenious design, gathers the count to the gamma ray signal of material and shows its normal distribution, distinguishes the material through the central pin that shows on the display screen whether the normal distribution of gamma ray signal is skew to be set for on the display screen, has promoted the efficiency of distinguishing the material.
Description
Technical Field
The utility model relates to a material detection technology field especially relates to a material detection device.
Background
In the industries of chemical industry, metallurgy, coal, electric power and the like, the material level in a container needs to be measured generally. Taking fly ash as an example, different coal types, even different producing areas of the same coal type, have certain influence on the component proportion of the fly ash after combustion. At present, the purpose of distinguishing materials cannot be achieved through counting and counting gamma ray signals, and the efficiency of distinguishing the materials is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings of the prior art, an object of the present invention is to provide a material detecting device for solving the problem in the prior art that the materials cannot be distinguished through the counting statistics of gamma ray signals.
In order to solve the technical problem, the utility model discloses a realize according to following mode: the utility model provides a material detection device, includes the device body, this internal collector, blocking circuit, count interrupt circuit, material signal holding circuit and the controller that is used for gathering the gamma ray signal of material that is equipped with of device, the collector connect in blocking circuit's input, blocking circuit's output connect respectively in count interrupt circuit and material signal holding circuit's input, count interrupt circuit and material signal holding circuit's output connect respectively in the controller.
In order to further solve the technical problem to be solved by the utility model, the utility model provides a pair of among the material detection device, the collector includes sodium iodide crystal and photomultiplier, the sodium iodide crystal connect in photomultiplier.
In order to further solve the technical problem to be solved by the present invention, in the material detecting device provided by the present invention, the blocking circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first electrolytic capacitor, a second electrolytic capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first triode, and a second triode; a gamma ray signal is input through one end of a first capacitor, and the other end of the first capacitor is connected to one end of a first resistor; the other end of the first resistor is connected to one end of the second capacitor and one end of the second resistor respectively, the other end of the second capacitor is connected to one end of the third resistor, and the other end of the third resistor is connected to one end of the fifth resistor and the base electrode of the first triode respectively; the other end of the fifth resistor is connected to one end of the sixth resistor and one end of the fourth resistor respectively; the other end of the fourth resistor, one end of the seventh resistor, one end of the ninth resistor, one end of the first electrolytic capacitor and one end of the fifth capacitor are respectively connected with one end of the twelfth resistor, and the other end of the twelfth resistor is connected with a power supply; the other ends of the first electrolytic capacitor and the fifth capacitor are respectively grounded; one end of the third capacitor is connected to the other end of the seventh resistor and the base electrode of the second triode respectively, and the other end of the third capacitor is connected to the other end of the ninth resistor and the collector electrode of the first triode respectively; one end of the eleventh resistor is connected to the emitter of the first triode and the collector of the second triode respectively, the other end of the eleventh resistor is connected to one end of the fourth capacitor, and gamma ray signals are output through the other end of the fourth capacitor; a base electrode of the second triode is respectively connected to one end of the third capacitor and one end of the eighth capacitor, and an emitting electrode of the second triode is respectively connected to one end of the tenth resistor and one end of the second electrolytic capacitor; the other end of the second resistor, the other end of the sixth resistor, the other end of the eighth resistor, the other end of the tenth resistor and the other end of the second electrolytic capacitor are respectively grounded.
In order to further solve the technical problem to be solved by the utility model, the utility model provides a pair of among the material detection device, material signal holding circuit includes electric capacity discharge circuit and fortune discharge circuit, electric capacity discharge circuit connects in fortune discharge circuit.
In order to further solve the technical problem to be solved by the present invention, in a material detecting device provided by the present invention, the capacitor discharging circuit and the operational amplifier circuit include a first diode, a second diode, a MOS transistor, a homodromous operational amplifier, a sixth capacitor, a thirteenth resistor, a fourteenth resistor, and a fifteenth resistor; a gamma ray signal is input through the anode of the first diode, and the cathode of the first diode, one end of the sixth capacitor and the drain electrode of the MOS tube are respectively connected with the anode input end of the homodromous operational amplifier; one end of the thirteenth resistor is connected to the grid of the MOS tube, the source of the MOS tube is connected to the anode of the second diode, and the cathode of the second diode is grounded; one end of the fourteenth resistor is connected to one end of the fifteenth resistor and the negative input end of the equidirectional operational amplifier respectively, the other end of the fourteenth resistor is grounded, the other end of the fifteenth resistor is connected to the output end of the equidirectional operational amplifier, and the output end of the equidirectional operational amplifier is connected to the controller.
In order to further solve the technical problem to be solved by the present invention, in the material detecting device provided by the present invention, the counting interruption circuit comprises a seventh capacitor, a sixteenth resistor, a seventeenth resistor and a comparator; the gamma ray signal is connected to the positive input end of the comparator through the seventeenth resistor, and the comparison signal is connected to the negative input end of the comparator through the sixteenth resistor; one end of the seventh capacitor is connected to the positive input end of the comparator, and the other end of the seventh capacitor is grounded; the output end of the comparator is connected with the controller.
In order to further solve the technical problem to be solved by the utility model, the utility model provides a pair of among the material detection device, the output that separates the direct current circuit is connected with reverse amplifier circuit, reverse amplifier circuit's output connect respectively in count interrupt circuit and material signal hold circuit's input.
In order to further solve the technical problem to be solved by the utility model, the utility model provides a pair of material detection device, be equipped with the display screen that is used for showing gamma ray signal normal distribution on the device body.
In order to further solve the utility model discloses the technical problem who solves, the utility model provides a pair of among the material detection device, the display screen is the touch-control screen.
As above, the utility model discloses a material detection device, through ingenious design, gather the count to the gamma ray signal of material and show its normal distribution, whether the normal distribution that shows gamma ray signal on through the display screen deviates the center pin of setting for on the display screen and distinguishes the material, has promoted the efficiency of distinguishing the material.
Drawings
Fig. 1 is a schematic diagram of a frame of a material detecting device according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a blocking circuit of a material detecting device according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a reverse amplifying circuit of a material detecting device according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a counting interrupt circuit of a material detecting device according to an embodiment of the present invention;
fig. 5 is a circuit diagram of a capacitor discharge circuit and an operational amplifier circuit of a material detection apparatus according to an embodiment of the present invention;
fig. 6 is a schematic diagram showing normal distribution of gamma-ray signals of a material detecting device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic manner, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and proportion of each component may be changed arbitrarily and the layout of the components may be more complicated.
As shown in fig. 1, the utility model provides a material detection device, including the device body, this internal collector, the blocking circuit, the count interrupt circuit, material signal holding circuit and the controller that are used for gathering the gamma ray signal of material that are equipped with of device, the collector is connected in the input of blocking circuit, and the output of blocking circuit is connected respectively in the input of count interrupt circuit and material signal holding circuit, and the output of count interrupt circuit and material signal holding circuit is connected respectively in the controller.
The collector comprises a sodium iodide crystal and a photomultiplier, and the sodium iodide crystal is connected with the photomultiplier. The gamma rays of the coal mine materials are converted into electrons after passing through the sodium iodide crystals, and because the energy of the gamma rays is small, the energy is still small and cannot be detected after passing through the sodium iodide crystals, and the energy is increased by accelerating the gamma rays through the photomultiplier. After the energy is added to a certain degree, electrons bombard on the positive plate to generate a negative pulse signal. Because the voltage of the positive plate is generally about 1000V, the material detection system comprises a material signal peak value limiting module, and the material signal peak value limiting module is used for limiting the maximum peak value of the gamma ray signal, namely limiting the maximum peak value of the negative pulse signal.
As shown in fig. 2, the dc blocking circuit limits the maximum peak value of the gamma ray signal. The blocking circuit comprises a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first electrolytic capacitor G1, a second electrolytic capacitor G2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a first triode Q1 and a second triode Q2.
The gamma ray signal is input through one end of the first capacitor C1, and the other end of the first capacitor C1 is connected to one end of the first resistor R1. The other end of the first resistor R1 is connected to one end of the second capacitor C2 and one end of the second resistor R2 respectively, the other end of the second capacitor C2 is connected to one end of the third resistor R3, and the other end of the third resistor R3 is connected to one end of the fifth resistor R5 and the base electrode of the first triode Q1 respectively. The other end of the fifth resistor R5 is connected to one end of the sixth resistor R6 and one end of the fourth resistor R4, respectively. The other end of the fourth resistor R4, one end of the seventh resistor R7, one end of the ninth resistor R9, one end of the first electrolytic capacitor G1 and one end of the fifth capacitor C5 are respectively connected with one end of a twelfth resistor R12, and the other end of the twelfth resistor R12 is connected with a power supply. The other ends of the first electrolytic capacitor G1 and the fifth capacitor C5 are respectively grounded. One end of the third capacitor C3 is connected to the other end of the seventh resistor R7 and the base of the second triode Q2, and the other end of the third capacitor C3 is connected to the other end of the ninth resistor R9 and the collector of the first triode Q1. One end of the eleventh resistor R11 is connected to the emitter of the first transistor Q1 and the collector of the second transistor Q2, respectively, the other end of the eleventh resistor R11 is connected to one end of the fourth capacitor C4, and the gamma ray signal is output through the other end of the fourth capacitor C4. The base electrode of the second triode Q2 is respectively connected to one end of the third capacitor C3 and one end of the eighth capacitor C8, and the emitter electrode of the second triode Q2 is respectively connected to one end of the tenth resistor R10 and one end of the second electrolytic capacitor G2. The other end of the second resistor R2, the other end of the sixth resistor R6, the other end of the eighth resistor R8, the other end of the tenth resistor R10 and the other end of the second electrolytic capacitor G2 are grounded, respectively.
The gamma ray signals pass through the first capacitor C1 and the second capacitor C2, and direct current signals are filtered, so that the maximum peak value of the gamma ray signals is limited, and the acquisition is convenient.
The output end of the blocking circuit is connected with a reverse amplifying circuit, and the output end of the reverse amplifying circuit is respectively connected with the input ends of the counting interrupt circuit and the material signal holding circuit.
As shown in fig. 3, the gamma ray signal output from the dc blocking circuit is reversely amplified by the reverse amplifier circuit, input from the eighteenth resistor R18, and output from the reverse amplifier U3.
As shown in fig. 4, the gamma ray signal output from the inverting amplifier circuit enters the count interrupt circuit, and the count interrupt module includes a seventh capacitor C7, a sixteenth resistor R16, a seventeenth resistor R17, and a comparator U2. The gamma ray signal output from the inverting amplifier circuit is connected to the positive input terminal of the comparator U2 through a seventeenth resistor R17, and the comparison signal is connected to the negative input terminal of the comparator U2 through a sixteenth resistor R16. One end of the seventh capacitor C7 is connected to the positive input end of the comparator U2, the other end of the seventh capacitor C7 is grounded, and the output end of the comparator U2 is connected to the controller. The signal output from the output of the comparator U2 is converted into a square wave and input to the controller, so that the controller can record the number of pulses of the gamma ray signal and can also be used to trigger the interrupt function of the controller.
The material signal holding circuit comprises a capacitor discharge circuit and an operational amplifier circuit, and the capacitor discharge circuit is connected with the operational amplifier circuit. As shown in fig. 5, the gamma ray signal output from the inverting amplifier circuit enters a capacitance discharge circuit and an operational amplifier circuit, which include a first diode D1, a second diode D2, a MOS transistor E1, a homodromous operational amplifier U1, a sixth capacitor C6, a thirteenth resistor R13, a fourteenth resistor R14, and a fifteenth resistor R15. The gamma ray signal output from the reverse amplification circuit is input through the anode of the first diode D1, and the cathode of the first diode, one end of the sixth capacitor and the drain of the MOS tube are respectively connected with the anode input end of the homodromous operational amplifier. One end of the thirteenth resistor R13 is connected to the gate of the MOS transistor E1, the source of the MOS transistor E1 is connected to the anode of the second diode D2, and the cathode of the second diode D2 is grounded. One end of the fourteenth resistor R14 is connected to one end of the fifteenth resistor R15 and the negative input end of the homodromous operational amplifier U1, respectively, the other end of the fourteenth resistor R14 is grounded, the other end of the fifteenth resistor R15 is connected to the output end of the homodromous operational amplifier U1, and the output end of the homodromous operational amplifier U1 is connected to the controller.
A signal is input to one end of the thirteenth resistor R13 to turn on the MOS transistor E1, and the sixth capacitor quickly releases the retained gamma-ray signal so as to wait for the next signal to hold the peak value of the signal, and the controller reads the width of the gamma-ray signal output from the equidirectional operational amplifier U1 after triggering and interrupting.
The device body is provided with a display screen for displaying the normal distribution of the gamma ray signals, and the display screen is a touch screen. As shown in fig. 6, the material signal counting module counts the gamma ray signal data read by the controller, and the normal distribution of the gamma ray signals is displayed on the display screen. The materials are distinguished by setting the central axis on the display screen, and the materials are mainly distinguished by judging whether the normal distribution of gamma ray signals deviates from the central axis. E.g. S in a normal distribution diagram 0 The position is provided with a central axis, and if the normal distribution of the gamma ray signals deviates from the central axis, the coal mine materials can be distinguished.
The utility model discloses a material detection device through ingenious design, gathers the count to the gamma ray signal of material and shows its normal distribution, distinguishes the material through the central pin that shows on the display screen whether the normal distribution of gamma ray signal is skew to be set for on the display screen, has promoted the efficiency of distinguishing the material. Therefore, the utility model effectively overcomes all sorts of shortcomings in the prior art and achieves better practical effect.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A material detection device, its characterized in that: the device comprises a device body, wherein a collector, a blocking circuit, a counting interruption circuit, a material signal holding circuit and a controller are arranged in the device body, the collector is used for collecting gamma ray signals of materials, the collector is connected to the input end of the blocking circuit, the output end of the blocking circuit is respectively connected to the input ends of the counting interruption circuit and the material signal holding circuit, and the output ends of the counting interruption circuit and the material signal holding circuit are respectively connected to the controller.
2. The material detection device of claim 1, wherein: the collector comprises a sodium iodide crystal and a photomultiplier, and the sodium iodide crystal is connected with the photomultiplier.
3. The material testing device of claim 1, wherein: the direct current blocking circuit comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first electrolytic capacitor, a second electrolytic capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first triode and a second triode; a gamma ray signal is input through one end of a first capacitor, and the other end of the first capacitor is connected to one end of a first resistor; the other end of the first resistor is connected to one end of the second capacitor and one end of the second resistor respectively, the other end of the second capacitor is connected to one end of the third resistor, and the other end of the third resistor is connected to one end of the fifth resistor and the base electrode of the first triode respectively; the other end of the fifth resistor is connected to one end of the sixth resistor and one end of the fourth resistor respectively; the other end of the fourth resistor, one end of the seventh resistor, one end of the ninth resistor, one end of the first electrolytic capacitor and one end of the fifth capacitor are respectively connected with one end of the twelfth resistor, and the other end of the twelfth resistor is connected with the power supply; the other ends of the first electrolytic capacitor and the fifth capacitor are respectively grounded; one end of the third capacitor is connected to the other end of the seventh resistor and the base electrode of the second triode respectively, and the other end of the third capacitor is connected to the other end of the ninth resistor and the collector electrode of the first triode respectively; one end of the eleventh resistor is connected to the emitter of the first triode and the collector of the second triode respectively, the other end of the eleventh resistor is connected to one end of the fourth capacitor, and gamma ray signals are output through the other end of the fourth capacitor; a base electrode of the second triode is respectively connected to one end of the third capacitor and one end of the eighth capacitor, and an emitting electrode of the second triode is respectively connected to one end of the tenth resistor and one end of the second electrolytic capacitor; the other end of the second resistor, the other end of the sixth resistor, the other end of the eighth resistor, the other end of the tenth resistor and the other end of the second electrolytic capacitor are respectively grounded.
4. The material detection device of claim 1, wherein: the material signal holding circuit comprises a capacitance discharge circuit and an operational amplifier circuit, and the capacitance discharge circuit is connected to the operational amplifier circuit.
5. The material detection device of claim 4, wherein: the capacitor discharge circuit and the operational amplifier circuit comprise a first diode, a second diode, an MOS (metal oxide semiconductor) tube, a homodromous operational amplifier, a sixth capacitor, a thirteenth resistor, a fourteenth resistor and a fifteenth resistor; a gamma ray signal is input through the anode of the first diode, and the cathode of the first diode, one end of the sixth capacitor and the drain electrode of the MOS tube are respectively connected with the anode input end of the homodromous operational amplifier; one end of the thirteenth resistor is connected to the gate of the MOS transistor, the source of the MOS transistor is connected to the anode of the second diode, and the cathode of the second diode is grounded; one end of the fourteenth resistor is connected to one end of the fifteenth resistor and the negative input end of the equidirectional operational amplifier respectively, the other end of the fourteenth resistor is grounded, the other end of the fifteenth resistor is connected to the output end of the equidirectional operational amplifier, and the output end of the equidirectional operational amplifier is connected to the controller.
6. The material detection device of claim 1, wherein: the counting interruption circuit comprises a seventh capacitor, a sixteenth resistor, a seventeenth resistor and a comparator; the gamma ray signal is connected to the positive input end of the comparator through the seventeenth resistor, and the comparison signal is connected to the negative input end of the comparator through the sixteenth resistor; one end of the seventh capacitor is connected to the positive input end of the comparator, and the other end of the seventh capacitor is grounded; the output end of the comparator is connected with the controller.
7. The material detection device of claim 1, wherein: the output end of the blocking circuit is connected with a reverse amplification circuit, and the output end of the reverse amplification circuit is respectively connected with the input ends of the counting interruption circuit and the material signal holding circuit.
8. The material detection device of claim 1, wherein: the device body is provided with a display screen for displaying the normal distribution of the gamma ray signals.
9. The material detection device of claim 8, wherein: the display screen is a touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221268974.4U CN217688646U (en) | 2022-05-25 | 2022-05-25 | Material detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221268974.4U CN217688646U (en) | 2022-05-25 | 2022-05-25 | Material detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217688646U true CN217688646U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221268974.4U Active CN217688646U (en) | 2022-05-25 | 2022-05-25 | Material detection device |
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|---|---|
| CN (1) | CN217688646U (en) |
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2022
- 2022-05-25 CN CN202221268974.4U patent/CN217688646U/en active Active
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