CN111127843A - Non-contact type dewing alarm method and device for water-cooled laser - Google Patents
Non-contact type dewing alarm method and device for water-cooled laser Download PDFInfo
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- CN111127843A CN111127843A CN201911096052.2A CN201911096052A CN111127843A CN 111127843 A CN111127843 A CN 111127843A CN 201911096052 A CN201911096052 A CN 201911096052A CN 111127843 A CN111127843 A CN 111127843A
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Abstract
The embodiment of the invention provides a non-contact type dewing alarm method and a non-contact type dewing alarm device for a water-cooled laser, wherein the method comprises the following steps: emitting light to a substrate to be measured at a preset angle and preset power; receiving the optical signal of the light reflected by the substrate to be tested, and converting the optical signal into an electrical signal to be tested; comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal, and outputting an alarm signal according to the difference value of the two voltage values; the target electrical signal is an electrical signal which is obtained by emitting light in a state that the substrate is free of condensation according to the preset angle and the preset power and performing photoelectric conversion with the same specification. The current photoelectric conversion can obtain high-precision voltage signals, so that the electric signals obtained by implementing the method have high precision, and the comparison result of the voltage difference value of the two electric signals is accurate and reliable. An alarm signal is output according to the difference value of the two voltage values, and an alarm is given through voltage value comparison, so that the method has the characteristics of simplicity in analysis, objective result and high accuracy.
Description
Technical Field
The invention relates to the technical field of lasers, in particular to a non-contact type dew condensation alarming method and device for a water-cooled laser.
Background
In the medium and high power laser used today, the pump source and the excitation power supply generate heat seriously, so that a relatively efficient and reliable cooling method of water cooling is required to cool the laser.
However, in a humid environment such as the south, or when a user turns on a water cooler without turning on a laser, dew condensation is likely to occur on an aluminum substrate inside the laser. In the dew state, the laser cannot be started, otherwise, electronic components and optical devices are damaged to different degrees.
At present, the collection of the temperature and the humidity of the dew point is mainly realized. However, the installation location of the temperature and humidity sensor in the test air is difficult to determine. On the other hand, the accuracy of the air temperature/humidity sensor and the dew condensation surface temperature sensor is also limited, and the accuracy of the result is not good.
Disclosure of Invention
In order to solve the above problems, embodiments of the present invention provide a non-contact type dew condensation alarm method and device for a water-cooled laser.
In a first aspect, an embodiment of the present invention provides a non-contact type dew condensation alarm method for a water-cooled laser, including: emitting light to a substrate to be measured at a preset angle and preset power; receiving an optical signal of the light reflected by the substrate to be tested, and converting the optical signal into an electrical signal to be tested; comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal, and outputting an alarm signal according to the difference value of the two voltage values; the target electrical signal is an electrical signal which is obtained by emitting light in a state that the substrate is free of condensation according to the preset angle and the preset power and performing photoelectric conversion with the same specification.
Further, after the converting the optical signal into an electrical signal, the method further includes: and amplifying the electric signal to be detected according to the same amplification factor as the target electric signal.
Further, the outputting an alarm signal according to the difference between the two voltage values includes: if the difference value of the two voltage values is larger than or equal to a preset threshold value, carrying out condensation alarm; and if the difference value of the two voltage values is smaller than the preset threshold value, no alarm is given.
Further, with predetermineeing angle and predetermineeing power, before the base plate emission light to await measuring, still include: emitting light to the dewless substrate to be tested at the same preset angle and preset power; and receiving an optical signal of the light reflected by the substrate to be measured in the non-condensation state, and performing photoelectric conversion to obtain the target electrical signal.
In a second aspect, an embodiment of the present invention provides a non-contact type dew condensation alarm device for a water-cooled laser, including: the light source emitting module is used for emitting light to the substrate to be tested at a preset power and a preset angle; the photoelectric conversion module is used for converting the optical signal of the light reflected by the substrate to be tested into an electrical signal to be tested; the comparator module is used for comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal and outputting an alarm signal according to the difference value of the two voltage values; the target electrical signal is an electrical signal which is obtained by emitting light in a state that the substrate is free of condensation according to the preset angle and the preset power and performing photoelectric conversion with the same specification.
Further, the apparatus also includes an amplifier module; and the amplifier module is used for amplifying the electric signal to be detected according to the same amplification factor as the target electric signal.
Furthermore, the device also comprises an alarm module, wherein the alarm module is connected with the comparator module; the dew formation alarm is carried out if the difference value of the two voltage values is greater than or equal to a preset threshold value; and if the difference value of the two voltage values is smaller than the preset threshold value, no alarm is given.
Further, the light source emitting module is a laser light source emitting module.
In a third aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program that is stored in the memory and is executable on the processor, where the processor executes the computer program to implement the step of the non-contact dew condensation alarm device for a water-cooled laser according to the first aspect of the present invention.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implementing the steps of the non-contact dew condensation alarm device of the water-cooled laser according to the first aspect of the present invention.
According to the non-contact type dew formation alarm method and device for the water-cooled laser, provided by the embodiment of the invention, the optical signal is converted into the electric signal to be detected, and the current photoelectric conversion can obtain a high-precision voltage signal, so that the electric signal obtained by implementing the method is high in precision, and the comparison result of the voltage difference value of the two electric signals is accurate and reliable. In addition, the method is different from a temperature and humidity testing method by comparing the voltage value of the electric signal to be tested with the voltage value of the target electric signal and outputting an alarm signal according to the difference value of the two voltage values, and the method alarms by comparing the voltage values, and has the characteristics of simple analysis, objective result and high accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart of a non-contact type dew condensation alarming method for a water-cooled laser according to an embodiment of the present invention;
fig. 2 is a structural diagram of a non-contact type dew condensation alarm device of a water-cooled laser provided by an embodiment of the invention;
FIG. 3 is a circuit diagram of an amplifier module and a comparator module provided by an embodiment of the invention;
fig. 4 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart of a non-contact type dew condensation alarm method for a water-cooled laser according to an embodiment of the present invention, and as shown in fig. 1, the non-contact type dew condensation alarm method for a water-cooled laser according to an embodiment of the present invention includes:
101. and emitting light to the substrate to be measured at a preset angle and preset power.
In 101, a light source is first controlled to emit light onto a substrate to be tested for condensation. Generally, the aluminum substrate reflects light differently between the aluminum substrate with and without dew condensation, and the intensity of light reflected in the dew condensation state is smaller than that of normal light. The preset angle and the preset power refer to an angle and power set before transmission, and can be set according to requirements, or can be a light source with a fixed angle and fixed power, and the light source is preferably a laser light source.
102. And receiving the optical signal of the light reflected by the substrate to be measured, and converting the optical signal into an electrical signal to be measured.
Light emitted by the light source is reflected by the aluminum substrate of the water-cooled laser, received by the receiving device, and then converted into an electric signal by the photoelectric conversion device.
103. And comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal, and outputting an alarm signal according to the difference value of the two voltage values.
The target electrical signal is an electrical signal obtained by emitting light in a state that the substrate is free from condensation according to a preset angle and preset power and performing photoelectric conversion with the same specification. Before light is emitted to obtain an electrical signal to be measured, the light is emitted to the dewless substrate under the same condition, and then the photoelectric conversion modules with the same electrical signal to be measured are obtained to obtain a target signal. In the case where the angle and the power are fixed and unadjustable, the preset angle and the preset power refer to the angle and the power in a fixed state.
Since the reflection of light on the aluminum substrate with and without dew condensation is different, the intensity of light reflected in the dew condensation state is smaller than that of normal reflection. Therefore, after photoelectric conversion under the same condition, if the dew condensation state and the non-dew condensation state are respectively obtained, the voltage values of the electric signal to be measured and the target electric signal are different, and the alarm signal corresponding to the electric signal to be measured can be output according to the difference value of the two voltages. If the substrate corresponding to the electric signal to be detected is in the state of no condensation, the voltage value of the obtained electric signal to be detected is consistent with that of the target electric signal, and according to the difference value of the two voltages, an alarm signal corresponding to the electric signal to be detected does not need to be output, and the state is in the state of no condensation.
According to the non-contact type dew formation alarm method for the water-cooled laser, provided by the embodiment of the invention, an optical signal is converted into an electric signal to be detected, and the current photoelectric conversion can obtain a high-precision voltage signal, so that the electric signal obtained by implementing the method is high in precision, and the comparison result of the voltage difference value of the two electric signals is accurate and reliable. In addition, the method is different from a temperature and humidity testing method by comparing the voltage value of the electric signal to be tested with the voltage value of the target electric signal and outputting an alarm signal according to the difference value of the two voltage values, and the method alarms by comparing the voltage values, and has the characteristics of simple analysis, objective result and high accuracy.
Based on the content of the foregoing embodiments, as an alternative embodiment, after converting the optical signal into an electrical signal, the method further includes: and amplifying the electric signal to be detected according to the same amplification factor as the target electric signal.
The voltage value of the electric signal after photoelectric conversion is considered to be smaller, and the accuracy of the comparison result is improved. After the photoelectric conversion, the electrical signal to be measured is amplified. Similarly, the target signal is amplified in the same proportion, so that an accurate comparison result can be obtained after the two voltage signals are amplified.
Based on the content of the foregoing embodiment, as an alternative embodiment, outputting an alarm signal according to a difference between two voltage values includes: if the difference value of the two voltage values is larger than or equal to a preset threshold value, carrying out condensation alarm; and if the difference value of the two voltage values is smaller than the preset threshold value, no alarm is given.
The voltage value of the electric signal to be measured and the voltage value of the target electric signal are basically consistent under the state of no condensation, and under the state of condensation, the voltage value of the electric signal to be measured is obviously smaller than the voltage value of the target electric signal. In this embodiment, a preset threshold is set according to an actual situation. When the difference value of the two voltages is smaller than the threshold value, the voltage difference of the two voltages is at a low level, the two voltages are considered to be consistent, and no alarm is given. And if the difference value of the two voltages is greater than or equal to the preset threshold value, and the voltage difference of the two voltages is at a high level, outputting a condensation alarm signal.
According to the non-contact type dewing alarm method for the water-cooled laser, provided by the embodiment of the invention, whether an alarm is output or not is judged by comparing the difference value of the two voltage values with the preset threshold value, the implementation process is simple, and the judgment efficiency is high.
Based on the content of the foregoing embodiment, as an optional embodiment, before the light is emitted to the substrate to be measured at a preset angle and with a preset power, the method further includes: emitting light to the dewless substrate to be tested at the same preset angle and preset power; and receiving an optical signal of the light reflected by the substrate to be measured in the non-condensation state, and performing photoelectric conversion to obtain a target electrical signal.
When the dew condensation condition is basically detected, the dew condensation condition is detected by emitting light rays with a preset angle to the substrate, and obtaining an electric signal to be detected and comparing the electric signal with a target electric signal after reflection, reception and photoelectric conversion. Therefore, before the test, the light is emitted to the substrate without dew condensation at the same angle and power as in the test case, and the value of the target electric signal is obtained after the same reflection, reception and photoelectric conversion. So that the subsequent comparison and analysis with the electric signal to be detected can be conveniently carried out, and finally, whether the alarm is carried out or not can be judged.
Fig. 2 is a structural diagram of a non-contact type dew condensation alarm device of a water-cooled laser according to an embodiment of the present invention, and as shown in fig. 2, the non-contact type dew condensation alarm device of the water-cooled laser includes: a light source emitting module 201, a photoelectric conversion module 202 and a comparator module 203. The light source emitting module 201 is configured to emit light to a substrate to be tested at a preset power and a preset angle; the photoelectric conversion module 202 is configured to convert an optical signal, which is obtained by reflecting light by the substrate to be tested, into an electrical signal to be tested; the comparator module 203 compares the voltage value of the electric signal to be detected with the voltage value of the target electric signal, and outputs an alarm signal according to the difference value of the two voltage values; the target electrical signal is an electrical signal obtained by emitting light in a state that the substrate is free of condensation according to a preset angle and preset power and performing photoelectric conversion with the same specification.
Based on the content of the above embodiment, as an alternative embodiment, the apparatus includes an amplifier module; the amplifier module is used for amplifying the electric signal to be detected according to the same amplification factor as the target electric signal.
Based on the content of the above embodiment, as an optional embodiment, the device further comprises an alarm module, wherein the alarm module is connected with the comparator module; the dew formation alarm is carried out if the difference value of the two voltage values is greater than or equal to a preset threshold value; and if the difference value of the two voltage values is smaller than the preset threshold value, no alarm is given.
Based on the content of the above embodiment, the light source emitting module is a laser light source emitting module.
The device embodiment provided in the embodiments of the present invention is for implementing the above method embodiments, and for details of the process and the details, reference is made to the above method embodiments, which are not described herein again.
The non-contact type dew formation alarm device of the water-cooled laser converts an optical signal into an electrical signal to be detected, and the current photoelectric conversion can obtain a high-precision voltage signal, so that the electrical signal obtained by implementing the method has high precision, and the comparison result of the voltage difference value of the two electrical signals is accurate and reliable. In addition, the method is different from a temperature and humidity testing method by comparing the voltage value of the electric signal to be tested with the voltage value of the target electric signal and outputting an alarm signal according to the difference value of the two voltage values, and the method alarms by comparing the voltage values, and has the characteristics of simple analysis, objective result and high accuracy.
Fig. 3 is a circuit diagram of an amplifier module and a comparator module according to an embodiment of the present invention, and as shown in fig. 3, the resistors R54, R57, R58, R59, R61, the capacitors C35, C40, C41, and the amplifier U10 form the amplifier module 204, and the resistors R60, R63, the capacitors C37, C39, and the comparator U11 form the comparator module 203. The light is amplified by the amplifier module 204 after being subjected to photoelectric conversion, and two voltage difference values are compared by the comparator module 203. Wherein XS6 is a two pin wiring terminal; the amplifier model in the amplifier module is OPA340MDBVTEP, and the connection relation of the pins 1-5 is shown in the figure; the type of a comparator in the comparator module is ADCMP601, and the connection relation of pins 1-6 is shown in the figure; the types of the resistor and the capacitor are shown in the figure, and can also be configured according to specific requirements.
After photoelectric conversion, an amplifier is used for correspondingly amplifying the value acquired by the photodiode, and the amplified voltage value, namely the voltage value at two ends of the resistor R58, can be used for determining the voltage value of the comparison reference 1 (corresponding to the target electric signal) under the conditions of testing the dew point and non-dew point. Accordingly, the amplification factor and the comparison reference 1 can be adjusted to an appropriate state, so that the PB2 behind the comparator block at the time of condensation is at a low level at the time of condensation and at a high level at the time of no condensation. If the circuit needs a high-level dew alarm, a reverser can be connected behind the PB2 to output an alarm, such as an output through a twisted pair TP.
Fig. 4 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 4, the electronic device may include: a processor (processor)401, a communication Interface (communication Interface)402, a memory (memory)403 and a bus 404, wherein the processor 401, the communication Interface 402 and the memory 403 complete communication with each other through the bus 404. The communication interface 402 may be used for information transfer of an electronic device. Processor 401 may call logic instructions in memory 403 to perform a method comprising: emitting light to a substrate to be measured at a preset angle and preset power; receiving an optical signal of the light reflected by the substrate to be tested, and converting the optical signal into an electrical signal to be tested; comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal, and outputting an alarm signal according to the difference value of the two voltage values; the target electrical signal is an electrical signal obtained by emitting light in a state that the substrate is free of condensation according to a preset angle and preset power and performing photoelectric conversion with the same specification.
In addition, the logic instructions in the memory 403 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-described method embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the transmission method provided in the foregoing embodiments when executed by a processor, and for example, the method includes: emitting light to a substrate to be measured at a preset angle and preset power; receiving an optical signal of the light reflected by the substrate to be tested, and converting the optical signal into an electrical signal to be tested; comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal, and outputting an alarm signal according to the difference value of the two voltage values; the target electrical signal is an electrical signal obtained by emitting light in a state that the substrate is free of condensation according to a preset angle and preset power and performing photoelectric conversion with the same specification.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A non-contact type dew condensation alarming method for a water-cooled laser is characterized by comprising the following steps:
emitting light to a substrate to be measured at a preset angle and preset power;
receiving an optical signal of the light reflected by the substrate to be tested, and converting the optical signal into an electrical signal to be tested;
comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal, and outputting an alarm signal according to the difference value of the two voltage values;
the target electrical signal is an electrical signal which is obtained by emitting light in a state that the substrate is free of condensation according to the preset angle and the preset power and performing photoelectric conversion with the same specification.
2. The non-contact dewing alarm method for the water-cooled laser device according to claim 1, wherein after converting the optical signal into an electrical signal, the method further comprises:
and amplifying the electric signal to be detected according to the same amplification factor as the target electric signal.
3. The non-contact type dewing alarm method for the water-cooled laser device according to claim 1, wherein the step of outputting an alarm signal according to the difference value of the two voltage values comprises the following steps:
if the difference value of the two voltage values is larger than or equal to a preset threshold value, carrying out condensation alarm;
and if the difference value of the two voltage values is smaller than the preset threshold value, no alarm is given.
4. The non-contact dewing alarm method for the water-cooled laser device according to claim 1, wherein before emitting light to the substrate to be measured at a preset angle and a preset power, the method further comprises:
emitting light to the dewless substrate to be tested at the same preset angle and preset power;
and receiving an optical signal of the light reflected by the substrate to be measured in the non-condensation state, and performing photoelectric conversion to obtain the target electrical signal.
5. The utility model provides a water-cooling laser non-contact dew alarm device which characterized in that includes:
the light source emitting module is used for emitting light to the substrate to be tested at a preset power and a preset angle;
the photoelectric conversion module is used for converting the optical signal of the light reflected by the substrate to be tested into an electrical signal to be tested;
the comparator module is used for comparing the voltage value of the electric signal to be detected with the voltage value of the target electric signal and outputting an alarm signal according to the difference value of the two voltage values;
the target electrical signal is an electrical signal which is obtained by emitting light in a state that the substrate is free of condensation according to the preset angle and the preset power and performing photoelectric conversion with the same specification.
6. The water-cooled laser non-contact dew alarm device as claimed in claim 5, characterized by comprising an amplifier module;
and the amplifier module is used for amplifying the electric signal to be detected according to the same amplification factor as the target electric signal.
7. The water-cooled laser non-contact type dew condensation alarm device as claimed in claim 5, further comprising an alarm module, wherein the alarm module is connected with the comparator module;
the dew formation alarm is carried out if the difference value of the two voltage values is greater than or equal to a preset threshold value;
and if the difference value of the two voltage values is smaller than the preset threshold value, no alarm is given.
8. The water-cooled laser non-contact dew alarm device as claimed in claim 5, wherein the light source emitting module is a laser light source emitting module.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the non-contact condensation alarm method of the water-cooled laser according to any one of claims 1 to 4 when executing the program.
10. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the steps of the non-contact condensation alarm method of the water-cooled laser according to any one of claims 1 to 4.
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| CN113311255A (en) * | 2021-04-16 | 2021-08-27 | 湖南大科激光有限公司 | Fault diagnosis system of laser |
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| CN207965685U (en) * | 2017-11-13 | 2018-10-12 | 北京镭创高科光电科技有限公司 | A kind of system of control refrigerating plant moisture condensation |
| CN208795291U (en) * | 2018-11-02 | 2019-04-26 | 苏州朗捷通智能科技有限公司 | A kind of meeting room environment monitoring device |
| CN110186955A (en) * | 2019-06-20 | 2019-08-30 | 张帆 | A kind of double light path chilled-mirror type dew point instrument |
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| CN113311255A (en) * | 2021-04-16 | 2021-08-27 | 湖南大科激光有限公司 | Fault diagnosis system of laser |
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