CN219285305U - Radiation source detector fault detector - Google Patents
Radiation source detector fault detector Download PDFInfo
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- CN219285305U CN219285305U CN202320034118.0U CN202320034118U CN219285305U CN 219285305 U CN219285305 U CN 219285305U CN 202320034118 U CN202320034118 U CN 202320034118U CN 219285305 U CN219285305 U CN 219285305U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides a radiation source detector fault detector, which relates to the field of device fault detection and comprises: a main board is arranged on the inner wall of the shell; the battery is arranged on the inner wall of the shell and is connected with the main board through a power line; the screen is arranged on the inner wall of the shell and is connected with the main board through a flat cable; the wiring port is arranged at the top of the shell and is connected with the main board through a detector wire, and the wiring port is also connected with an external radioactive source detector to be detected; the main board comprises: the control chip is used for sending a control signal to the radioactive source detector; the signal loading and separating circuit is connected with the control chip and the radioactive source detector and is used for loading a control signal into the working power supply and separating a pulse signal from a feedback signal of the radioactive source detector; the control chip obtains the health condition of the radioactive source detector according to the pulse signal processing. The portable detection instrument has the beneficial effects that the efficiency of detection is improved, the operation is simple and convenient, the cost is lower than that of the traditional detection device, and the portable detection instrument is small and portable and is convenient to wire.
Description
Technical Field
The utility model relates to the field of device fault detection, in particular to a radiation source detector fault detector.
Background
At present, no instrument for detecting the quality of the radioactive source detector is available in the market, the radioactive source detector can only be inserted into a special pulling speed control instrument to know whether the operation is normal, and the quality of the radioactive source detector is generally tested by using the pulling speed instrument of the detector on site, so that the radioactive source detector belongs to detection in the production process, the detection process is complex in operation, troublesome in wiring, low in detection efficiency and incapable of realizing independent detection. And if a fault occurs during operation, it cannot be excluded that there is a problem with the pull-speed control instrument or the detector or the wiring between them.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a radiation source detector fault detector, which comprises:
the shell is provided with a main board on the inner wall;
the battery is arranged on the inner wall of the shell and is connected with the main board through a power line;
the screen is arranged on the inner wall of the shell and is connected with the main board through a flat cable;
the wiring port is arranged at the top of the shell and is connected with the main board through a detector wire, and the wiring port is also connected with an external radioactive source detector to be detected;
the main board comprises:
the control chip is used for sending a control signal to the radioactive source detector;
the signal loading and separating circuit is connected with the control chip and the radioactive source detector and is used for loading the control signal into a working power supply and separating a pulse signal from a feedback signal of the radioactive source detector; and the control chip processes the pulse signals to obtain the health condition of the radioactive source detector.
Preferably, the signal loading separation circuit includes:
one end of the first fuse is connected with the battery, the other end of the first fuse is connected with the cathode of the first diode, one end of the first capacitor and the anode of the second diode, and the anode of the first diode is connected with the other end of the first capacitor and is grounded;
the source electrode of the first field effect tube is connected with the cathode of the second diode, the grid electrode of the first field effect tube is connected with one end of a first resistor, the other end of the first resistor is connected with one end of a second resistor and one end of a second capacitor, the other ends of the second resistor and the second capacitor are connected with the emitter of the first triode, the collector of the first triode is connected with one end of a third resistor and the cathode of the second diode, and the base electrode of the first triode is connected with the other end of the third resistor;
the collector of the second triode is connected with the emitter of the first triode, the base of the second triode is connected with the base of the first triode, the emitter of the second triode is connected with one end of a fourth resistor, the other end of the fourth resistor is connected with the emitter of a third triode, the collector of the third triode is connected with the base of the first triode, and the base of the third triode is connected with a ninth pin of the first chip;
one end of the third capacitor is connected with a seventeenth pin of the first chip, the other end of the third capacitor is connected with one end of the fourth capacitor, one end of the fifth resistor and one end of the fifth capacitor are grounded, and the other end of the fourth capacitor is connected with the other end of the fifth capacitor;
the third pin of the second capacitor is connected with the other end of the fifth capacitor, the first pin of the second chip is connected with the other end of the fifth capacitor and the collector electrode of the fourth triode, the emitter electrode of the fourth triode is grounded, and the base electrode of the fourth triode is connected with the fifteenth pin of the first chip;
one end of the seventh resistor is connected with a twelfth pin of the first chip, one end of the sixth resistor is connected with a collector electrode of a fifth triode, an emitter electrode of the fifth triode is connected with one end of an eighth resistor, and the other end of the eighth resistor is connected with the seventh resistor, the ninth resistor, one end of the tenth resistor and a second pin of the second chip; the other end of the ninth resistor is connected with the first pin of the second chip, and the other end of the seventh capacitor is grounded;
the anode of the third diode is connected with the other end of the tenth resistor, the anode of the fourth diode is connected with the cathode of the third triode, the base electrode of the fifth triode and one end of an eleventh resistor, the other end of the eleventh resistor is connected with one end of an eighth capacitor, one end of a twelfth resistor and a thirteenth pin of the first chip, and the other end of the twelfth resistor is connected with the other end of the eighth capacitor and grounded;
the anode of the fifth diode is connected with the first pin of the second chip, the cathode of the fifth diode is connected with the cathode of the third diode and the anode of the sixth diode, the cathode of the sixth diode is connected with one end of a thirteenth resistor, the other end of the thirteenth resistor is connected with one end of a fourteenth resistor and the collector of a sixth triode, the emitter of the sixth triode is grounded, the base of the sixth triode is connected with one end of a fifteenth resistor, and the other end of the fifteenth resistor is connected with the tenth pin of the first chip;
a seventh triode, the emitter of the seventh triode is connected with the cathode of the fourth diode and the other end of the fourteenth resistor, the collector of the seventh triode is connected with the base of the eighth triode, the base of the seventh triode is connected with one end of a sixteenth resistor, the other end of the sixteenth resistor is connected with the emitter of the eighth triode and one end of a seventeenth resistor, and the other end of the seventeenth resistor is connected with the emitter of the seventh triode and the drain of the field effect transistor; a cathode of a seventh diode is connected with the other end of the seventeenth resistor, an anode of the seventh diode is connected with a collector of the eighth triode and grounded, and a cathode of the seventh diode is connected with the radiation source detector;
an eighteenth resistor, wherein one end of the eighteenth resistor is connected with the nineteenth pin of the first chip, and the other end of the eighteenth resistor is grounded.
Preferably, the power supply driving circuit further comprises a power supply driving circuit, the power supply driving circuit comprises:
the first pin of the third chip is connected with one end of a ninth capacitor and the control chip, the other end of the ninth capacitor is connected with a twenty-fourth pin of the third chip and grounded, the thirteenth pin of the third chip is connected with one end of a tenth capacitor and one end of an eleventh capacitor and the battery, and the other ends of the tenth capacitor and the eleventh capacitor are connected with the twelfth pin of the third chip and grounded;
a first pin of the fourth chip is connected with one end of a twelfth capacitor and a thirteenth capacitor, and the cathode of the second diode and the other end of the fourth capacitor; the other ends of the twelfth capacitor and the thirteenth capacitor are connected with one ends of the second pin and the fourteenth capacitor of the fourth chip and one ends of the fifteenth capacitor and are grounded, and the other ends of the fourteenth capacitor and the fifteenth capacitor are connected with the third pin of the fourth chip.
Preferably, the display device further comprises an indication circuit, the indication circuit comprising:
a nineteenth resistor, wherein one end of the nineteenth resistor is connected with the cathode of the seventh diode, the other end of the nineteenth resistor is connected with the anode of the first light-emitting diode, and the cathode of the first light-emitting diode is connected with the cathode of the second light-emitting diode and grounded;
and one end of the twentieth resistor is connected with the anode of the second light emitting diode, the other end of the twentieth resistor is connected with the collector of the ninth stage, the emitter of the ninth triode is connected with the other end of the fourteenth capacitor, the base of the ninth triode is connected with one end of the twenty-first resistor, and the other end of the twenty-first resistor is connected with the twentieth pin of the first chip.
Preferably, the circuit further comprises a protection circuit, the protection circuit comprising:
and a first isolator, wherein a first terminal of the first isolator is connected with one end of the twenty-second resistor. The other end of the twenty-second resistor is connected with the other end of the fourteenth capacitor, the second wiring end of the first isolator is connected with the control chip, the third wiring end of the first isolator is connected with one end of the twenty-third resistor and the second pin of the first chip, the other end of the twenty-third resistor is connected with the other end of the fourteenth capacitor, and the fourth wiring end of the first isolator is grounded;
the first wiring end of the second isolator is connected with one end of a twenty-fourth resistor, the other end of the twenty-fourth resistor is connected with the collector electrode of a ninth triode, and the base electrode of the ninth triode is connected with the eighth pin of the first chip; the second wiring end and the third wiring end of the second isolator are grounded, the fourth wiring end of the second isolator is connected with one end of a second fifth resistor and the control chip, and the other end of the twenty-fifth resistor and the emitter of the ninth transistor are connected with the other end of the fourteenth capacitor.
Preferably, the radiation source detector is connected with the wiring port through a connecting wire in a quick-plug structure.
Preferably, a plurality of operation buttons are arranged on the surface of the upper cover of the shell, and each operation button is connected with the main board.
The technical scheme has the following advantages or beneficial effects: the efficiency of detection has been improved, and is easy and simple to handle, and is lower than traditional detection device cost to this instrumentation is small and exquisite portable, and the wiring is convenient.
Drawings
FIG. 1 is a schematic illustration of the connection of a radiation source detector fault detector to a radiation source detector in accordance with a preferred embodiment of the present utility model;
FIG. 2 is a schematic diagram of a radiation source detector fault detector according to a preferred embodiment of the present utility model;
FIG. 3 is a circuit diagram of a signal loading separation circuit according to a preferred embodiment of the present utility model;
FIG. 4 is a circuit diagram of a power driving circuit according to a preferred embodiment of the present utility model;
FIG. 5 is a circuit diagram of an indicator circuit according to a preferred embodiment of the present utility model;
fig. 6 is a circuit diagram of a protection circuit in a preferred embodiment of the present utility model.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The present utility model is not limited to the embodiment, and other embodiments may fall within the scope of the present utility model as long as they conform to the gist of the present utility model.
In accordance with the foregoing problems with the prior art, the present utility model provides a radiation source detector fault detector, which is connected to a radiation source detector, as shown in fig. 1 and 2, and comprises:
the shell 1, the inner wall of the shell 1 is provided with a main board 2;
the battery 3 is arranged on the inner wall of the shell 1 and is connected with the main board 2 through a power line 4;
the screen 5 is arranged on the inner wall of the shell 1 and is connected with the main board 2 through a flat cable 6;
the wiring port 7 is arranged at the top of the shell 1, the wiring port 7 is connected with the main board 2 through a detector wire 8, and the wiring port 7 is also connected with an external radioactive source detector 9 to be detected;
the main board 2 includes:
a control chip 21 for sending a control signal to the radiation source detector 9;
the signal loading and separating circuit 22 is connected with the control chip 21 and the radioactive source detector 9 and is used for loading a control signal into a working power supply and separating a pulse signal from a feedback signal of the radioactive source detector 9; the control chip 21 obtains the health condition of the radiation source detector 9 according to the pulse signal processing.
Specifically, in this embodiment, the radiation source detector fault detector is connected to a radiation source detector 9 to be detected, when the radiation source detector is started to operate, a control signal of the control chip 21 is loaded into the power supply through the signal loading separation circuit 22, so that the radiation source detector 9 to be detected is powered on and sends a control signal at the same time, after the radiation source detector 9 to be detected is powered on and receives the control signal, various state information of the radiation source detector 9 and detected pulse signals are fed back to the radiation source detector fault detector together as feedback signals, the signal loading separation circuit 21 separates the feedback information from the power supply to obtain the state information and the pulse signals, the control chip 21 correspondingly displays the state information in the feedback signals, such as detector ID, detector temperature and the like, on the screen 5, and the control chip 21 obtains the pulse number according to the pulse signals to judge the health condition of the radiation source detector 9 to be detected and displays the pulse number and the health condition on the screen 5;
the pulse width of a pulse signal is generally 200us, and when the set acquisition period of the radiation source detector fault detector is 10ms and no radiation source exists nearby, the pulse number should change back and forth between 0 and 1; if the acquisition period is increased and the number of pulses acquired in the acquisition period is increased in the same ratio, the health condition of the radiation source detector 9 is good; when the number of pulses detected by the radiation source detector during a set acquisition period is always 0, an attempt may be made to bring the radiation source detector closer to the radiation source to see if there is a change in the number of pulses. If the pulse number is changed but the numerical value is changed slightly, the health state of the radiation source detector is poor, and the detector is forbidden to be used; if the pulse number is unchanged, the detector is damaged and should be immediately stopped.
In a preferred embodiment of the present utility model, as shown in FIG. 3, the signal loading separation circuit 22 comprises:
the first fuse FU1, one end of the first fuse FU1 is connected with the battery 3, the other end of the first fuse FU1 is connected with the cathode of the first diode D1, one end of the first capacitor C1 and the anode of the second diode D2, and the anode of the first diode D1 is connected with the other end of the first capacitor C1 and grounded;
the first FET1, the source electrode of the first FET1 connects the cathode of the second diode D2, the grid electrode of the first FET1 connects one end of the first resistance R1, another end of the first resistance R1 connects one end of the second resistance R2 and second electric capacity C2, another end of the second resistance R2 and second electric capacity C2 connects the emitter of the first triode Q1, the collector of the first triode Q1 connects one end of the third resistance R3 and cathode of the second diode D2, the base of the first triode Q1 connects another end of the third resistance R3;
the second triode Q2, the collector of the second triode Q2 is connected with the emitter of the first triode Q1, the base of the second triode Q2 is connected with the base of the first triode Q1, the emitter of the second triode Q2 is connected with one end of the fourth resistor R4, the other end of the fourth resistor R4 is connected with the emitter of the third triode Q3, the collector of the third triode Q3 is connected with the base of the first triode Q1, and the base of the third triode Q3 is connected with the ninth pin of the first chip U1;
one end of the third capacitor C3 is connected with a seventeenth pin of the first chip U1, the other end of the third capacitor C3 is connected with one end of the fourth capacitor C4, one end of the fifth resistor R5 and one end of the fifth capacitor C5 and is grounded, and the other end of the fourth capacitor C4 is connected with the other end of the fifth capacitor C5;
the third pin of the second chip U2 is connected with the other end of the fifth capacitor C5, the first pin of the second chip U2 is connected with the other end of the fifth capacitor C5 and the collector of the fourth triode Q4, the emitter of the fourth triode Q4 is grounded, and the base of the fourth triode Q4 is connected with the fifteenth pin of the first chip U1;
one end of the seventh resistor R7 is connected with a twelfth pin of the first chip U1, one end of the sixth capacitor C6 is connected with a collector of the fifth triode Q5, an emitter of the fifth triode Q5 is connected with one end of the eighth resistor R8, and the other end of the eighth resistor R8 is connected with one end of the seventh capacitor C7, the ninth resistor R9 and the tenth resistor R10 and a second pin of the second chip U2; the other end of the ninth resistor R9 is connected with the first pin of the second chip U2, and the other end of the seventh capacitor C7 is grounded;
the anode of the third diode D3 is connected with the other end of the tenth resistor R10, the anode of the fourth diode D4 is connected with the cathode of the third triode Q3, the base of the fifth triode Q5 and one end of an eleventh resistor R11, the other end of the eleventh resistor R11 is connected with one end of an eighth capacitor C8 and one end of a twelfth resistor R12 and the thirteenth pin of the first chip U1, and the other end of the twelfth resistor R12 is connected with the other end of the eighth capacitor C8 and grounded;
the anode of the fifth diode D5 is connected with the first pin of the second chip U2, the cathode of the fifth diode D5 is connected with the cathode of the third diode D3 and the anode of the sixth diode D6, the cathode of the sixth diode D6 is connected with one end of a thirteenth resistor R13, the other end of the thirteenth resistor R13 is connected with one end of a fourteenth resistor R14 and the collector of a sixth triode Q6, the emitter of the sixth triode Q6 is grounded, the base of the sixth triode Q6 is connected with one end of a fifteenth resistor R15, and the other end of the fifteenth resistor R15 is connected with the tenth pin of the first chip U1;
a seventh triode Q7, wherein the emitter of the seventh triode Q7 is connected with the cathode of the fourth diode D4 and the other end of the fourteenth resistor R14, the collector of the seventh triode Q7 is connected with the base of the eighth triode D8, the base of the seventh triode Q7 is connected with one end of the sixteenth resistor R16, the other end of the sixteenth resistor R16 is connected with the emitter of the eighth triode Q8 and one end of the seventeenth resistor R17, and the other end of the seventeenth resistor R17 is connected with the emitter of the seventh triode Q7 and the drain of the field effect transistor FET 1; the cathode of the seventh diode D7 is connected with the other end of the seventeenth resistor R17, the anode of the seventh diode D7 is connected with the collector of the eighth triode Q8 and grounded, and the cathode of the seventh diode D7 is connected with the radiation source detector 9;
eighteenth resistor R18 one end of the eighteenth resistor R18 is connected to the nineteenth pin of the first chip U1, and the other end of the eighteenth resistor R18 is grounded.
In a preferred embodiment of the present utility model, as shown in fig. 4, the power driving circuit 23 includes:
the first pin of the third chip U3 is connected with one end of a ninth capacitor C9 and the control chip, the other end of the ninth capacitor C9 is connected with a twenty-fourth pin of the third chip U3 and grounded, the thirteenth pin of the third chip U3 is connected with one end of a tenth capacitor C10 and one end of an eleventh capacitor C11 and the battery 3, and the other ends of the tenth capacitor C10 and the eleventh capacitor C11 are connected with the twelfth pin of the third chip U3 and grounded;
the first pin of the fourth chip U4 is connected with one ends of the twelfth capacitor C12 and the thirteenth capacitor C13 and the cathode of the second diode D2 and the other end of the fourth capacitor C4; the other ends of the twelfth capacitor C12 and the thirteenth capacitor C13 are connected with the second pin of the fourth chip U4, one end of the fourteenth capacitor C14 and one end of the fifteenth capacitor C15 and grounded, and the other ends of the fourteenth capacitor C14 and the fifteenth capacitor C15 are connected with the third pin of the fourth chip U4.
In a preferred embodiment of the present utility model, as shown in FIG. 5, the indication circuit 24 includes:
a nineteenth resistor R19, wherein one end of the nineteenth resistor R19 is connected to the cathode of the seventh diode D7, the other end of the nineteenth resistor R19 is connected to the anode of the first light emitting diode DF1, and the cathode of the first light emitting diode DF1 is connected to the cathode of the second light emitting diode DF2 and grounded;
one end of the twentieth resistor R20 is connected with the anode of the second light emitting diode DF2, the other end of the twentieth resistor R20 is connected with the collector of the ninth transistor Q9, the emitter of the ninth transistor Q9 is connected with the other end of the fourteenth capacitor C14, the base of the ninth transistor Q9 is connected with one end of the twenty-first resistor R21, and the other end of the twenty-first resistor R21 is connected with the twentieth pin of the first chip U1.
Specifically, in this embodiment, the indication circuit 24 is configured to display the power-on state when the radiation source detector fault detector works, so as to prevent misjudgment of the health condition of the radiation source detector 9 caused by poor power-on state of the radiation source detector fault detector in the process.
In a preferred embodiment of the present utility model, as shown in fig. 6, the protection circuit 25 includes:
the first isolator OC1, the first terminal of the first isolator OC1 is connected to one end of the twenty-second resistor R22. The other end of the twenty-second resistor R22 is connected with the other end of the fourteenth capacitor C14, the second wiring end of the first isolator OC1 is connected with the control chip 21, the third wiring end of the first isolator OC1 is connected with one end of the twenty-third resistor R23 and the second pin of the first chip U1, the other end of the twenty-third resistor R23 is connected with the other end of the fourteenth capacitor C14, and the fourth wiring end of the first isolator OC1 is grounded;
the first terminal of the second isolator OC2 is connected with one end of a twenty-fourth resistor R24, the other end of the twenty-fourth resistor R24 is connected with the collector electrode of a ninth transistor Q9, and the base electrode of the ninth transistor Q9 is connected with the eighth pin of the first chip U1; the second wiring terminal and the third wiring terminal of the second isolator OC2 are grounded, the fourth wiring terminal of the second isolator OC2 is connected with one end of a twenty-fifth resistor R25 and the control chip 21, and the other end of the twenty-fifth resistor R25 and the emitter of a ninth transistor Q9 are connected with the other end of a fourteenth capacitor C14.
Specifically, in this embodiment, the protection circuit 25 is provided to prevent the radiation source detector malfunction detector or the radiation source detector 9 from being damaged due to an abnormal situation during operation.
In the preferred embodiment of the present utility model, the radiation source detector 9 is connected to the wiring port 7 by a connecting wire 10 in a quick-plug structure.
Specifically, in this embodiment, the radiation source detector 9 and the radiation source detector fault detector are connected by adopting a quick-plug structure, so that the operation is simple and convenient, the tedious wiring process is omitted, and the detection efficiency is affected.
In a preferred embodiment of the present utility model, as shown in fig. 1, a plurality of operation buttons 11 are provided on the surface of the upper cover of the housing, and each operation button 11 is connected to the main board.
Specifically, in this embodiment, the casing 1 is further provided with a plurality of operation buttons 11, which are used for adjusting the acquisition period of the radiation source detector fault detector, and also used for detecting personnel to select a required display mode from a plurality of preset display modes of display information, so as to be convenient for monitoring the state of the radiation source detector.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations herein, which should be included in the scope of the present utility model.
Claims (7)
1. A radiation source detector fault detector, comprising:
the shell is provided with a main board on the inner wall;
the battery is arranged on the inner wall of the shell and is connected with the main board through a power line;
the screen is arranged on the inner wall of the shell and is connected with the main board through a flat cable;
the wiring port is arranged at the top of the shell and is connected with the main board through a detector wire, and the wiring port is also connected with an external radioactive source detector to be detected;
the main board comprises:
the control chip is used for sending a control signal to the radioactive source detector;
the signal loading and separating circuit is connected with the control chip and the radioactive source detector and is used for loading the control signal into a working power supply and separating a pulse signal from a feedback signal of the radioactive source detector; and the control chip processes the pulse signals to obtain the health condition of the radioactive source detector.
2. The radiation source detector fault detector of claim 1, wherein the signal loading separation circuit comprises:
one end of the first fuse is connected with the battery, the other end of the first fuse is connected with the cathode of the first diode, one end of the first capacitor and the anode of the second diode, and the anode of the first diode is connected with the other end of the first capacitor and is grounded;
the source electrode of the first field effect tube is connected with the cathode of the second diode, the grid electrode of the first field effect tube is connected with one end of a first resistor, the other end of the first resistor is connected with one end of a second resistor and one end of a second capacitor, the other ends of the second resistor and the second capacitor are connected with the emitter of the first triode, the collector of the first triode is connected with one end of a third resistor and the cathode of the second diode, and the base electrode of the first triode is connected with the other end of the third resistor;
the collector of the second triode is connected with the emitter of the first triode, the base of the second triode is connected with the base of the first triode, the emitter of the second triode is connected with one end of a fourth resistor, the other end of the fourth resistor is connected with the emitter of a third triode, the collector of the third triode is connected with the base of the first triode, and the base of the third triode is connected with a ninth pin of the first chip;
one end of the third capacitor is connected with a seventeenth pin of the first chip, the other end of the third capacitor is connected with one end of the fourth capacitor, one end of the fifth resistor and one end of the fifth capacitor are grounded, and the other end of the fourth capacitor is connected with the other end of the fifth capacitor;
the third pin of the second capacitor is connected with the other end of the fifth capacitor, the first pin of the second chip is connected with the other end of the fifth capacitor and the collector electrode of the fourth triode, the emitter electrode of the fourth triode is grounded, and the base electrode of the fourth triode is connected with the fifteenth pin of the first chip;
one end of the seventh resistor is connected with a twelfth pin of the first chip, one end of the sixth resistor is connected with a collector electrode of a fifth triode, an emitter electrode of the fifth triode is connected with one end of an eighth resistor, and the other end of the eighth resistor is connected with the seventh resistor, the ninth resistor, one end of the tenth resistor and a second pin of the second chip; the other end of the ninth resistor is connected with the first pin of the second chip, and the other end of the seventh capacitor is grounded;
the anode of the third diode is connected with the other end of the tenth resistor, the anode of the fourth diode is connected with the cathode of the third triode, the base electrode of the fifth triode and one end of an eleventh resistor, the other end of the eleventh resistor is connected with one end of an eighth capacitor, one end of a twelfth resistor and a thirteenth pin of the first chip, and the other end of the twelfth resistor is connected with the other end of the eighth capacitor and grounded;
the anode of the fifth diode is connected with the first pin of the second chip, the cathode of the fifth diode is connected with the cathode of the third diode and the anode of the sixth diode, the cathode of the sixth diode is connected with one end of a thirteenth resistor, the other end of the thirteenth resistor is connected with one end of a fourteenth resistor and the collector of a sixth triode, the emitter of the sixth triode is grounded, the base of the sixth triode is connected with one end of a fifteenth resistor, and the other end of the fifteenth resistor is connected with the tenth pin of the first chip;
a seventh triode, the emitter of the seventh triode is connected with the cathode of the fourth diode and the other end of the fourteenth resistor, the collector of the seventh triode is connected with the base of the eighth triode, the base of the seventh triode is connected with one end of a sixteenth resistor, the other end of the sixteenth resistor is connected with the emitter of the eighth triode and one end of a seventeenth resistor, and the other end of the seventeenth resistor is connected with the emitter of the seventh triode and the drain of the field effect transistor; a cathode of a seventh diode is connected with the other end of the seventeenth resistor, an anode of the seventh diode is connected with a collector of the eighth triode and grounded, and a cathode of the seventh diode is connected with the radiation source detector;
an eighteenth resistor, wherein one end of the eighteenth resistor is connected with the nineteenth pin of the first chip, and the other end of the eighteenth resistor is grounded.
3. The radiation source detector fault detector of claim 2, further comprising a power drive circuit, the power drive circuit comprising:
the first pin of the third chip is connected with one end of a ninth capacitor and the control chip, the other end of the ninth capacitor is connected with a twenty-fourth pin of the third chip and grounded, the thirteenth pin of the third chip is connected with one end of a tenth capacitor and one end of an eleventh capacitor and the battery, and the other ends of the tenth capacitor and the eleventh capacitor are connected with the twelfth pin of the third chip and grounded;
a first pin of the fourth chip is connected with one end of a twelfth capacitor and a thirteenth capacitor, and the cathode of the second diode and the other end of the fourth capacitor; the other ends of the twelfth capacitor and the thirteenth capacitor are connected with one ends of the second pin and the fourteenth capacitor of the fourth chip and one ends of the fifteenth capacitor and are grounded, and the other ends of the fourteenth capacitor and the fifteenth capacitor are connected with the third pin of the fourth chip.
4. The radiation source detector fault detector of claim 3, further comprising an indication circuit, the indication circuit comprising:
a nineteenth resistor, wherein one end of the nineteenth resistor is connected with the cathode of the seventh diode, the other end of the nineteenth resistor is connected with the anode of the first light-emitting diode, and the cathode of the first light-emitting diode is connected with the cathode of the second light-emitting diode and grounded;
the base of the ninth triode is connected with one end of a twenty-first resistor, and the other end of the twenty-first resistor is connected with a twentieth pin of the first chip.
5. The radiation source detector fault detector of claim 3, further comprising a protection circuit comprising:
the first wiring terminal of the first isolator is connected with one end of a twenty-second resistor, the other end of the twenty-second resistor is connected with the other end of the fourteenth capacitor, the second wiring terminal of the first isolator is connected with the control chip, the third wiring terminal of the first isolator is connected with one end of a twenty-third resistor and a second pin of the first chip, the other end of the twenty-third resistor is connected with the other end of the fourteenth capacitor, and the fourth wiring terminal of the first isolator is grounded;
the first wiring end of the second isolator is connected with one end of a twenty-fourth resistor, the other end of the twenty-fourth resistor is connected with the collector electrode of a ninth triode, and the base electrode of the ninth triode is connected with the eighth pin of the first chip; the second wiring end and the third wiring end of the second isolator are grounded, the fourth wiring end of the second isolator is connected with one end of a twenty-fifth resistor and the control chip, and the other end of the twenty-fifth resistor and the emitter of the ninth triode are connected with the other end of the fourteenth capacitor.
6. The radiation source detector fault detector of claim 1, wherein the radiation source detector is connected to the wiring port by a connecting wire in a snap-in configuration.
7. The radiation source detector according to claim 1, wherein a plurality of operation buttons are provided on a surface of the upper cover of the housing, each of the operation buttons being connected to the main board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320034118.0U CN219285305U (en) | 2023-01-06 | 2023-01-06 | Radiation source detector fault detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320034118.0U CN219285305U (en) | 2023-01-06 | 2023-01-06 | Radiation source detector fault detector |
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