CN217280683U - Fault detection device and mass spectrometer - Google Patents
Fault detection device and mass spectrometer Download PDFInfo
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- CN217280683U CN217280683U CN202221254262.7U CN202221254262U CN217280683U CN 217280683 U CN217280683 U CN 217280683U CN 202221254262 U CN202221254262 U CN 202221254262U CN 217280683 U CN217280683 U CN 217280683U
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Abstract
The utility model discloses a fault detection device and mass spectrograph relates to fault detection technical field, is applied to the motor that is in the vacuum cavity body among the mass spectrograph, establishes ties each first controllable switch through each coil power supply interface and each coil that go out the vacuum cavity body to the circuit after N series connection that will obtain is parallelly connected, and the circuit after parallelly connected is connected with processing module and power again, need not to change the line structure of walking of itself of motor in the vacuum cavity body, and a processing module control N first controllable switch switches on respectively, gathers the first voltage at circuit both ends after parallelly connected, with the operating condition who confirms the motor. Compared with the prior art, the fault detection device provided by the application can realize the detection of the working state of the motor in the closed vacuum cavity, is convenient for finding out faults and processing in time, does not need human participation, has high automation degree, and ensures the working performance of a mass spectrometer.
Description
Technical Field
The utility model relates to a fault detection technical field especially relates to a fault detection device and mass spectrograph.
Background
With the development of the in vitro diagnostic industry, people have higher and higher quality requirements on medical instruments such as mass spectrometers and the like. The power system of the mass spectrometer comprises a motor and a mechanical mechanism driven by the motor, wherein the motor is arranged in a vacuum closed environment in the mass spectrometer, the motor comprises a plurality of coils, two ends of each coil are connected out of a vacuum cavity through corresponding power supply ports, and the vacuum cavity is connected with a power supply so that each coil can be electrified, and the motor is further ensured to drive the mechanical mechanism to move.
The reliable operation of the motor, which is one of the key components of the drive system, affects the reliable operation of the mass spectrometer. However, because the motor is in a vacuum closed environment in the mass spectrometer, the motor cannot be directly detected whether to break down manually, so that the reliability of the motor operation cannot be guaranteed, and the stable operation of the mass spectrometer is further influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fault detection device and mass spectrograph has realized the detection to the operating condition of the motor that is in the sealed vacuum cavity, is convenient for in time discover the trouble and handle, and need not artificially to participate in, and degree of automation is high, has ensured the working property of mass spectrograph.
In order to solve the technical problem, the utility model provides a fault detection device is applied to the motor that is in the vacuum cavity in the mass spectrometer, the motor includes N coil, the both ends of ith coil are passed through ith power supply interface and are linked out the vacuum cavity, fault detection device includes N first controllable switch and processing module, wherein, N is the even number that is not less than 2, 1 is no less than i no less than N and i is the integer;
the ith first controllable switch is connected with the ith coil in series through the ith power supply interface; the N circuits connected in series are connected in parallel, and the circuits connected in parallel are respectively connected with the processing module and the power supply;
the processing module is further connected with the control end of each first controllable switch, and is used for controlling each first controllable switch to be respectively conducted, and determining the working state of the motor according to the first voltage at the two ends of the parallel circuit collected when each first controllable switch is respectively conducted.
Preferably, the processing module includes an AD sampling module, a processor, a timer, and a frequency divider;
one end of the timer is connected with the power supply, and the other end of the timer is connected with the input end of the frequency divider;
the output end of the frequency divider is connected with the control end of each first controllable switch and is used for carrying out frequency division output on the pulse signals with equal bandwidth sent by the timer so as to control each first controllable switch to be respectively conducted;
the AD sampling module is respectively connected with the parallel circuits and the processor and is used for collecting first voltages at two ends of the parallel circuits when the first controllable switches are respectively conducted and transmitting the first voltages to the processor;
the processor is used for determining the working state of the motor according to the first voltage.
Preferably, the processing module further comprises a voltage amplifying module;
one end of the parallel circuit is respectively connected with the first input end of the voltage amplification module and the first end of the first input channel of the AD sampling module; the other end of the parallel circuit is respectively connected with the second input end of the voltage amplification module and the second end of the first input channel of the AD sampling module;
the first output end of the voltage amplification module is connected with the first end of the second input channel of the AD sampling module, the second output end of the voltage amplification module is connected with the second end of the second input channel of the AD sampling module, and the voltage amplification module is used for amplifying the first voltage at two ends of the parallel circuit by preset times when each first controllable switch is respectively conducted so as to obtain a second voltage, so that the second voltage reaches the acquisition resolution threshold value of the AD sampling module;
a first output channel of the AD sampling module corresponding to the first input channel is connected with a first input end of the processor, and a second output channel of the AD sampling module corresponding to the second input channel is connected with a second input end of the processor.
Preferably, the processor is an MCU.
Preferably, the system also comprises a prompt module;
the prompting module is connected with the processing module and used for prompting the result of the working state of the motor determined by the processing module.
Preferably, the prompting module is a display screen.
Preferably, the first controllable switch is a relay.
Preferably, the device also comprises a flow stabilizing module;
the current stabilizing module is arranged between the power supply and the parallel circuit, the input end of the current stabilizing module is connected with the power supply, the first output end of the current stabilizing module is connected with one end of the parallel circuit, the second output end of the current stabilizing module is connected with the other end of the parallel circuit, and the current stabilizing module is used for performing current stabilizing treatment on the voltage output by the power supply so as to stabilize the output current of the current stabilizing module at a preset current stabilizing value.
Preferably, the current stabilization module is a constant current source integrated chip.
In order to solve the technical problem, the utility model also provides a mass spectrometer, which comprises a control module, a motor positioned in the vacuum cavity, a second controllable switch and the fault detection device;
the fault detection device is connected with the motor;
the second controllable switch is arranged between a power supply and the fault detection device, a first end of the second controllable switch is connected with the power supply, a second end of the second controllable switch is connected with the fault detection device, and a control end of the second controllable switch is connected with the control module and used for being switched on when a switching-on signal of the control module is received and being switched off when the switching-on signal is not received;
the control module is used for sending the conducting signal to the second controllable switch when the mass spectrometer is started or stops isotope detection or the working state of the motor is to be determined.
The utility model provides a fault detection device and mass spectrograph is applied to the motor that is in the vacuum cavity in the mass spectrograph, and the power supply interface that links out this vacuum cavity with each first controllable switch through every coil establishes ties with each coil to the circuit after N series connection that will obtain is parallelly connected, and the circuit after parallelly connected is connected with processing module and power, need not to change the line structure of walking of itself of motor in the vacuum cavity, and a processing module control N first controllable switch switches on respectively, and gathers the first voltage at circuit both ends after parallelly connected, with the operating condition who confirms the motor. Compared with the prior art, the fault detection device provided by the application can realize the detection of the working state of the motor in the closed vacuum cavity, is convenient for finding out faults and processing in time, does not need human participation, has high automation degree, and ensures the working performance of a mass spectrometer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fault detection device provided by the present invention;
fig. 2 is a schematic structural diagram of another fault detection apparatus provided by the present invention;
fig. 3 is a schematic structural diagram of a mass spectrometer provided by the present invention.
Detailed Description
The core of the utility model is to provide a fault detection device and mass spectrograph has realized the detection to the operating condition of the motor that is in the closed vacuum cavity, is convenient for in time discover the trouble and handle, and need not artificially to participate in, and degree of automation is high, has ensured the working property of mass spectrograph.
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a fault detection device according to the present invention.
The fault detection device is applied to a motor in a vacuum cavity in a mass spectrometer, the motor comprises N coils, two ends of the ith coil are connected with the vacuum cavity through an ith power supply interface, the fault detection device comprises N first controllable switches 1 and a processing module 2, wherein N is an even number not less than 2, i is not less than 1 and not more than N, and i is an integer;
the ith first controllable switch 1 is connected with the ith coil in series through the ith power supply interface; the N circuits connected in series are connected in parallel, and the circuits connected in parallel are respectively connected with the processing module 2 and a power supply;
the processing module 2 is further connected with the control end of each first controllable switch 1, and is used for controlling each first controllable switch 1 to be respectively conducted, and determining the working state of the motor according to the first voltage at the two ends of the parallel circuit collected when each first controllable switch 1 is respectively conducted.
In this embodiment, it is considered that in the prior art, the human body cannot directly detect whether the motor in the vacuum cavity fails, so that the reliability of the motor operation and the stability of the mass spectrometer operation cannot be ensured. In order to solve the technical problem, the application provides a fault detection device, which does not need human participation and realizes automatic detection of motor faults.
The motor here includes, but is not limited to, a stepping motor, the motor includes N coils, both ends of each coil are connected out of the vacuum chamber through corresponding power supply interfaces, then, the ith first controllable switch 1 is connected in series with the ith coil through the ith power supply interface, where the first controllable switch 1 includes, but is not limited to, a relay. The N series circuits are connected in parallel and the parallel circuits are respectively connected to the processing module 2 and the power supply, specifically, as shown in fig. 1, where the drawing is limited by space, and the description is given by taking N-2 as an example. The working state of the motor specifically comprises short circuit, open circuit and normal work, the processing module 2 controls the first control switches to be respectively conducted, each first controllable switch 1 is conducted to form a detection loop, coils of the motor have certain resistance values, the collected first voltage at two ends of the parallel circuit is essentially the voltage drop on the coil corresponding to the currently conducted first controllable switch 1, and further, the step of determining the working state of the motor according to the voltage drop on the coil is that when the first voltage is smaller than the lower limit of the threshold value, the corresponding coil is short-circuited, so that the working state of the motor is determined to be short circuit; when the first voltage is larger than the upper threshold, the corresponding coil is disconnected, and then the working state of the motor is determined to be disconnected; and when the lower threshold value is less than the first voltage and less than the upper threshold value, the corresponding coil works normally, and then the working state of the motor is determined to be normal work.
It can be understood that, since the number of the first controllable switches 1 in the present application is the same as the number of the coils, the fault detection device can detect the fault of one motor, and can also detect the faults of a plurality of motors, and only the connection lines defined in the present application need to be connected.
To sum up, the application provides a fault detection device, need not to change the line structure of walking of itself of motor in the vacuum cavity, has realized the operating condition's to the motor that is in the closed vacuum cavity detection, is convenient for in time discover the trouble and handle, and need not artificial participation, and degree of automation is high, and then has ensured mass spectrometer's working property.
On the basis of the above-described embodiment:
referring to fig. 2, fig. 2 is a schematic structural diagram of another fault detection device provided in the present invention.
As a preferred embodiment, the processing module 2 includes an AD sampling module 22, a processor 21, a timer 24, and a frequency divider 23;
one end of the timer 24 is connected with the power supply, and the other end of the timer 24 is connected with the input end of the frequency divider 23;
the output end of the frequency divider 23 is connected to the control end of each first controllable switch 1, and is configured to perform frequency division output on the pulse signal with equal bandwidth sent by the timer 24, so as to control each first controllable switch 1 to be turned on respectively;
the AD sampling module 22 is connected to the parallel circuits and the processor 21, and is configured to collect first voltages at two ends of the parallel circuits when the first controllable switches 1 are turned on, and transmit the first voltages to the processor 21;
the processor 21 is configured to determine an operating state of the motor according to the first voltage.
In this embodiment, in view that the control of each first controllable switch 1 should be guaranteed to be reliable and effective, the processing module 2 may include an AD sampling module 22, a processor 21, a timer 24, and a frequency divider 23, and the connection manner of each part has been already explained above, and is not described here again. The control circuit for controlling the conduction of each first controllable switch 1 is formed by the timer 24 and the frequency divider 23, and compared with a single chip microcomputer or other software program control modes, the control circuit with pure hardware greatly reduces the use cost and code run-out faults.
Specifically, the AD sampling module 22 may be an AD sampling chip, the chip type includes but is not limited to AD7606, and the sampling rate of the AD sampling chip may be 12bit, which is higher than the accuracy of an AD sampling chip with 8 bit. The pulse signal of equal bandwidth sent by the timer 24 is understood to be a pulse signal of a predetermined interval time and duration provided by the timer.
It can be seen that the functions of the processing module 2 can be easily and reliably implemented by the above arrangement and the corresponding connection relationship.
As a preferred embodiment, the processing module 2 further comprises a voltage amplification module 25;
one end of the parallel circuit is respectively connected with the first input end of the voltage amplification module 25 and the first end of the first input channel of the AD sampling module 22; the other end of the parallel circuit is respectively connected with the second input end of the voltage amplifying module 25 and the second end of the first input channel of the AD sampling module 22;
a first output end of the voltage amplification module 25 is connected with a first end of a second input channel of the AD sampling module 22, a second output end of the voltage amplification module 25 is connected with a second end of the second input channel of the AD sampling module 22, and the voltage amplification module is used for amplifying the first voltages at two ends of the parallel circuit when each first controllable switch 1 is respectively switched on by a preset multiple to obtain a second voltage, so that the second voltage reaches the acquisition resolution threshold of the AD sampling module 22;
a first output channel of the AD sampling module 22 corresponding to the first input channel is connected to a first input terminal of the processor 21, and a second output channel of the AD sampling module 22 corresponding to the second input channel is connected to a second input terminal of the processor 21.
In this embodiment, further considering that the AD sampling module 22 has a sampling resolution threshold, when the corresponding coil is short-circuited, since the acquired first voltage is too small to be possibly acquired by the AD sampling module 22, the processing module 2 may further include a voltage amplifying module 25, and a specific connection manner of the voltage amplifying module 25 in the circuit is as described above, and is not described herein again. Specifically, the voltage amplifying module 25 amplifies a preset multiple of the first voltage at two ends of the parallel circuit when each first controllable switch 1 is turned on respectively to obtain the second voltage, where the preset multiple is set according to actual requirements, and the voltage amplifying module 25 may be specifically an amplifying circuit composed of an operational amplifier, and is not limited herein. Further, the voltage drop across the coil is generally about 0.5V when the coil is shorted, and then, taking the collected first voltage as 0.5V as an example, the preset multiple may be 4 times, that is, the first voltage is amplified to 2V by the voltage amplifying module 25 and is output, so that the first voltage can be collected by the AD sampling module 22.
Therefore, for the AD sampling module 22, when each first controllable switch 1 is turned on, the first voltage may be collected through its own first input channel and the collection result of the first voltage is transmitted to the processor 21 through the first output channel, and the second voltage is collected through its own second input channel and the collection result of the second voltage is transmitted to the processor 21 through the second output channel. For the processor 21, the working state of the motor may be determined according to the first voltage and the second voltage, that is, the processor 21 knows that the information received by the first input terminal of the processor 21 is normal unamplified information, and the information received by the second input terminal of the processor is amplified information, when the first voltage is too small, the first input terminal of the processor is likely not to receive any information (since the AD sampling module 22 is likely not to acquire information because it does not reach the acquisition resolution threshold), and only the second input terminal acquires information, it may be determined that the motor has a short-circuit fault; when the first input end of the motor can receive the first voltage, whether the motor breaks down or not can be directly determined according to the first voltage, for example, when the first voltage is greater than 5V, the motor is determined to be in an open circuit state, and when the first voltage is between 0.5V and 5V, the motor is determined to be in a normal working state.
It can be seen that the reliable operation of the processing module 2 in the present application can be reliably ensured by the arrangement of the voltage amplifying module 25 and the connection manner of the voltage amplifying module, the AD sampling module 22 and the parallel circuit.
As a preferred embodiment, the processor 21 is an MCU.
In this embodiment, the processor 21 may be an MCU (micro controller Unit), which has the advantages of small size, high integration level, fast operation speed, programmability, and the like, and can reliably implement the control logic of the processor 21 in this application, and the model of the MCU includes but is not limited to STM32F 407.
Of course, as an extension, the processor 21 may also be other control chips, including but not limited to a DSP chip and the like.
As a preferred embodiment, the system further comprises a prompt module;
the prompting module is connected with the processing module 2 and used for prompting the result of the working state of the motor determined by the processing module 2.
In this embodiment, in order to show the working state of the motor more intuitively and facilitate the working personnel to make corresponding actions after mastering the working state of the motor more intuitively, the fault detection device may further include a prompt module for prompting the working state of the motor determined by the processing module 2, and specifically, the prompt module may be a display device, such as a display screen; the device may be a voice broadcasting device, and is not particularly limited herein.
Of course, the prompting module may also prompt the first voltage corresponding to each coil collected by the processing module 2, and is not particularly limited herein.
As a preferred embodiment, the prompting module is a display screen.
In this embodiment, the prompt module may be a display screen, specifically, the display screen may be an integrated serial display screen complying with a serial communication protocol, and is not particularly limited herein.
As a preferred embodiment, the first controllable switch 1 is a relay.
In this embodiment, this first controllable switch 1 can be the relay, and the relay has advantages such as small, the action is fast, job stabilization and long service life, can reliably realize first controllable switch 1's work in this application.
As a preferred embodiment, the device further comprises a flow stabilizing module 3;
the current stabilizing module 3 is arranged between the power supply and the parallel circuit, the input end of the current stabilizing module 3 is connected with the power supply, the first output end of the current stabilizing module 3 is connected with one end of the parallel circuit, the second output end of the current stabilizing module 3 is connected with the other end of the parallel circuit, and the current stabilizing module is used for performing current stabilizing processing on voltage output by the power supply so as to stabilize output current of the current stabilizing module at a preset current stabilizing value.
In this embodiment, further considering that the power supply commonly used is a constant voltage source, the output voltage provided by the constant voltage source is constant, but the corresponding output current may fluctuate, and due to the thermal effect of the current, the accuracy of the determination of the operating state of the motor needs to be improved. Therefore, when the power supply is a constant voltage source, the fault detection device may further include a current stabilization module 3 to perform current stabilization processing on the voltage output by the power supply, so as to ensure that the output current of the current stabilization module 3 is stabilized at a preset current stabilization value, where the preset current stabilization value includes, but is not limited to, 500mA to meet the requirement of fault detection of a motor in a mass spectrometer, but is not particularly limited herein, and may be set according to actual requirements. Therefore, the arrangement of the current stabilizing module 3 avoids the influence of the thermal effect of the current on the detection precision of the fault detection device, and further improves the precision and the practicability of the fault detection device.
As a preferred embodiment, the current stabilization module 3 is a constant current source integrated chip.
In this embodiment, the current stabilization module 3 may be a constant current source integrated chip, and the operation of the current stabilization module 3 in this application can be simply and reliably realized by a highly integrated constant current source integrated chip.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a mass spectrometer according to the present invention.
The mass spectrometer comprises a control module 6, a motor positioned in a vacuum cavity, a second controllable switch 5 and the fault detection device 4;
the fault detection device 4 is connected with the motor;
the second controllable switch 5 is arranged between the power supply and the fault detection device 4, a first end of the second controllable switch 5 is connected with the power supply, a second end of the second controllable switch 5 is connected with the fault detection device 4, and a control end of the second controllable switch 5 is connected with the control module 6, and is used for being switched on when a switching-on signal of the control module 6 is received and switched off when the switching-on signal is not received;
the control module 6 is configured to send a conducting signal to the second controllable switch 5 when the mass spectrometer is turned on or the mass spectrometer stops isotope detection or the working state of the motor to be determined.
For the introduction of the mass spectrometer provided in the present invention, please refer to the embodiment of the above fault detection device 4, which is not described herein again.
It should be noted that the mass spectrometer includes, but is not limited to, a matrix-assisted laser desorption ionization time-of-flight mass spectrometer, and the prompting module may specifically be an upper computer in the mass spectrometer, and is not particularly limited herein. This mass spectrograph includes control module 6, is in motor, the controllable switch of second 5 in the vacuum cavity and as above-mentioned fault detection device 4, certainly as the driving system of mass spectrograph, include the motor reaches the mechanical structure who is driven by the motor, consequently, when this driving system breaks down like the locked rotor, probably for the locked rotor that the motor trouble leads to has appeared, also probably for mechanical structure has appeared the locked rotor that the trouble leads to, and the operating condition of motor can be confirmed to this kind of fault detection device 4 that this application provided to whether clear out trouble problem at the motor, guide the timely accuracy of maintenance personal to seek the fault point, and be equipped with the replacement spare part, thereby shorten maintenance duration, improve work efficiency, improve the operating stability of mass spectrograph.
Further, the control module 6 switches off the fault detection device 4 by controlling the second controllable switch 5 to enable the motor and the mechanical structure to work normally; when the working state of the motor needs to be determined, that is, fault detection is performed, specifically, the second controllable switch 5 may be controlled to be turned on to enable the fault detection device 4 to work when the mass spectrometer is started, or the second controllable switch 5 may be controlled to be turned on to enable the fault detection device 4 to work when the mass spectrometer stops isotope detection, or the second controllable switch 5 may be controlled to be turned on to enable the fault detection device 4 to work when the working state of the motor needs to be determined at any time, where no particular limitation is made, and detection is performed by performing corresponding control according to actual requirements.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It should also be noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A fault detection device is characterized by being applied to a motor in a vacuum cavity in a mass spectrometer, wherein the motor comprises N coils, two ends of the ith coil are connected with the vacuum cavity through an ith power supply interface, the fault detection device comprises N first controllable switches and a processing module, N is an even number not less than 2, i is not less than 1 and not more than N, and i is an integer;
the ith first controllable switch is connected with the ith coil in series through the ith power supply interface; the N circuits connected in series are connected in parallel, and the circuits connected in parallel are respectively connected with the processing module and the power supply;
the processing module is further connected with the control end of each first controllable switch, and is used for controlling each first controllable switch to be respectively conducted, and determining the working state of the motor according to the first voltage at the two ends of the parallel circuit collected when each first controllable switch is respectively conducted.
2. The fault detection device of claim 1, wherein the processing module comprises an AD sampling module, a processor, a timer, and a frequency divider;
one end of the timer is connected with the power supply, and the other end of the timer is connected with the input end of the frequency divider;
the output end of the frequency divider is connected with the control end of each first controllable switch and is used for carrying out frequency division output on the pulse signals with equal bandwidth sent by the timer so as to control each first controllable switch to be respectively conducted;
the AD sampling module is respectively connected with the parallel circuits and the processor and is used for collecting first voltages at two ends of the parallel circuits when the first controllable switches are respectively conducted and transmitting the first voltages to the processor;
the processor is used for determining the working state of the motor according to the first voltage.
3. The fault detection device of claim 2, wherein the processing module further comprises a voltage amplification module;
one end of the parallel circuit is respectively connected with the first input end of the voltage amplification module and the first end of the first input channel of the AD sampling module; the other end of the parallel circuit is respectively connected with the second input end of the voltage amplification module and the second end of the first input channel of the AD sampling module;
the first output end of the voltage amplification module is connected with the first end of the second input channel of the AD sampling module, the second output end of the voltage amplification module is connected with the second end of the second input channel of the AD sampling module, and the voltage amplification module is used for amplifying the first voltage at two ends of the parallel circuit by preset times when each first controllable switch is respectively conducted so as to obtain a second voltage, so that the second voltage reaches the acquisition resolution threshold value of the AD sampling module;
a first output channel of the AD sampling module corresponding to the first input channel is connected with a first input end of the processor, and a second output channel of the AD sampling module corresponding to the second input channel is connected with a second input end of the processor.
4. The fault detection device of claim 2, wherein the processor is an MCU.
5. The fault detection device of claim 1, further comprising a prompt module;
the prompting module is connected with the processing module and used for prompting the result of the working state of the motor determined by the processing module.
6. The fault detection device of claim 5, wherein the prompting module is a display screen.
7. The fault detection device of claim 1, wherein the first controllable switch is a relay.
8. The fault detection device according to any one of claims 1 to 7, further comprising a flow stabilization module;
the current stabilization module is arranged between the power supply and the circuit after parallel connection, the input end of the current stabilization module is connected with the power supply, the first output end of the current stabilization module is connected with one end of the circuit after parallel connection, the second output end of the current stabilization module is connected with the other end of the circuit after parallel connection, and the current stabilization module is used for performing current stabilization on voltage output by the power supply so as to stabilize output current at a preset current stabilization value.
9. The fault detection device of claim 8, wherein the current stabilization module is a constant current source integrated chip.
10. A mass spectrometer comprising a control module and a motor in a vacuum chamber, a second controllable switch and a fault detection device as claimed in any one of claims 1 to 9;
the fault detection device is connected with the motor;
the second controllable switch is arranged between a power supply and the fault detection device, a first end of the second controllable switch is connected with the power supply, a second end of the second controllable switch is connected with the fault detection device, and a control end of the second controllable switch is connected with the control module and used for being switched on when a switching-on signal of the control module is received and being switched off when the switching-on signal is not received;
the control module is used for sending the conducting signal to the second controllable switch when the mass spectrometer is started or stops isotope detection or the working state of the motor is to be determined.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115951002A (en) * | 2023-03-10 | 2023-04-11 | 山东省计量科学研究院 | Gas chromatography-mass spectrometer fault detection device |
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| CN115951002A (en) * | 2023-03-10 | 2023-04-11 | 山东省计量科学研究院 | Gas chromatography-mass spectrometer fault detection device |
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