CN211576295U - Laser liquid level measuring device - Google Patents
Laser liquid level measuring device Download PDFInfo
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- CN211576295U CN211576295U CN202020336486.7U CN202020336486U CN211576295U CN 211576295 U CN211576295 U CN 211576295U CN 202020336486 U CN202020336486 U CN 202020336486U CN 211576295 U CN211576295 U CN 211576295U
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- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
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- 229910052697 platinum Inorganic materials 0.000 description 2
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- MMOXZBCLCQITDF-UHFFFAOYSA-N N,N-diethyl-m-toluamide Chemical compound CCN(CC)C(=O)C1=CC=CC(C)=C1 MMOXZBCLCQITDF-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a laser liquid level measuring device relates to glass liquid measuring device technical field. The device comprises a processing host, a laser transmitter and a photoelectric receiver, wherein the processing host comprises a first microprocessor, the laser transmitter is connected with the first microprocessor through a switch output channel, and the laser generator is used for transmitting laser under the control of the first microprocessor; the photoelectric receiver is connected with the first microprocessor through a switch input channel and is used for receiving a laser spot displacement signal reflected by the glass liquid level and transmitting the signal to the first microprocessor for processing; the display module is connected with the signal output end of the first microprocessor and used for displaying output data; and the power supply output end of the first power supply module is connected with the power supply input end of a module needing power supply in the host machine and is used for providing a working power supply for the module. The device can detect the glass liquid level in real time, and the measured data accuracy is high, convenient to use.
Description
Technical Field
The utility model relates to a glass liquid measuring device technical field especially relates to a laser liquid level measuring device.
Background
For glass production lines, the furnace level is very important. The liquid level has a great influence on the service life of the kiln, the product percent of pass and the yield. On the other hand, complicated control lines, numerous instruments and meters, complicated parameter settings and the like in the kiln control room often cause the workers to be busy and troubled and operate incorrectly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how to provide a can be real-time detect the glass liquid level, and the measured data degree of accuracy is high, convenient to use's laser liquid level measuring device.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a laser liquid level measuring device is characterized in that: the photoelectric processing system comprises a processing host, a laser transmitter and a photoelectric receiver, wherein the processing host comprises a first microprocessor, the laser transmitter is connected with the first microprocessor through a switch output channel, and the laser transmitter is used for transmitting laser under the control of the first microprocessor; the photoelectric receiver is connected with the first microprocessor through a switch input channel and used for receiving a laser spot displacement signal reflected by the glass liquid level and transmitting the signal to the first microprocessor for processing; the display module is connected with the signal output end of the first microprocessor and used for displaying output data; and the power supply output end of the first power supply module is connected with the power supply input end of a module needing power supply in the host machine and is used for providing a working power supply for the module.
The further technical scheme is as follows: the switch output channel comprises a connector JSR, wherein a pin 1 of the JSR is connected with a pin 1 of an JGX-3FA type direct current solid state relay SSR1, a pin 2 of the JSR is connected with a pin 2 of an JGX-3FA type direct current solid state relay SSR1, a pin 4 of the SSR1 is connected with a +24V power supply, a pin 3 of the SSR1 is divided into two paths, the first path is connected with an emitter of a triode Q1, the second path is connected with a pin 1 of a connector JOUT1, the pin 2 and the pin 3 of the JOUT1 are connected with the +24V power supply, the emitter of the triode Q1 is connected with the +24V power supply through a diode D2, and a collector of the triode Q1 is grounded; the base electrode of the triode Q1 is divided into two paths, the first path is sequentially connected with a +24V power supply through a light emitting diode LED1 and a resistor R68, the second path is connected with the collector electrode of a phototriode of a TLP521-4 type optocoupler U7A, the emitter electrode of the phototriode of U7A is grounded, the anode of an infrared light emitting diode of U7A is connected with a power supply VCC through a resistor R64, and the cathode of the infrared light emitting diode of U7A is a signal output end;
a pin 3 of the JSR is connected with a pin 1 of an SSR2 of an JGX-3FA type direct current solid state relay, a pin 4 of the JSR is connected with a pin 4 of an SSR2 of a JGX-3FA type direct current solid state relay, a pin 4 of the SSR2 is connected with a +24V power supply, a pin 3 of the SSR2 is divided into two paths, the first path is connected with an emitter of a triode Q2, the second path is connected with a pin 4 of a connector JOUT1, an emitter of the triode Q2 is connected with a +24V power supply through a diode D3, and a collector of the triode Q2 is grounded; the base electrode of the triode Q2 is divided into two paths, the first path is sequentially connected with a +24V power supply through a secondary light emitting diode LED2 and a resistor R69, the second path is connected with the collector electrode of a phototriode of a TLP521-4 type optocoupler U7B, the emitter electrode of the phototriode of U7B is grounded, the anode of an infrared light emitting diode of U7B is connected with a power supply VCC through a resistor R65, and the cathode of the infrared light emitting diode of U7B is a signal output end.
The further technical scheme is as follows: the switch input channel comprises a plurality of switch input units and a connector JIN, the switch input units comprise TLP521-4 type optocouplers U8A, pin 1 of JIN is divided into two paths, the first path is connected with the anode of the infrared light emitting diode in U8A through a capacitor C4, the second path is connected with the cathode of the infrared light emitting diode in U8A, the anode of the infrared light emitting diode in U8A is connected with a +24V power supply through a resistor R56, the emitter of the phototriode in U8A is grounded, the collector of the phototriode in U8A is divided into two paths, the first path is grounded through a resistor R60, and the second path is the output end of the switch input channel.
The further technical scheme is as follows: the laser emitter comprises a He-Ne laser, a second microprocessor, a second power supply module and a nixie tube indicating module, wherein the output end of the second microprocessor is connected with the signal input end of the He-Ne laser through a first interface module, the output end of the He-Ne laser is connected with the signal input end of the second microprocessor through a second interface module, a serial port module is bidirectionally connected with the second microprocessor and used for connecting the laser emitter with the processing host, the nixie tube indicating module is connected with the signal output end of the second microprocessor, the second power supply module is used for providing a working power supply for the He-Ne laser, and the He-Ne laser is used for emitting laser outwards.
The further technical scheme is as follows: the second microprocessor uses a STC12C56XX-QFP32 type singlechip U1.
The further technical scheme is as follows: the input end of the first interface circuit is divided into two paths, the first path is connected with a power supply VCC through a resistor R19, the second path is connected with the base electrode of a triode Q1 through a resistor R20, the collector electrode of the triode Q1 is grounded, the emitter electrode of the triode Q1 is divided into three paths, the first path is grounded through a resistor R22, the second path is connected with a pin 2 of a connector J1, the third path is connected with one end of a capacitor E4, the other end of the capacitor E4 is divided into two paths, the first path is connected with the power supply VCC through a resistor R21, the second path is connected with a pin 1 of the connector J1, and the connector J1 is connected with the signal input.
The further technical scheme is as follows: the second interface circuit comprises a connector J3, a pin 1 of the J3 is divided into two paths, the first path is grounded through a capacitor C1, and the second path is connected with a power supply VCC; the 2 pins of the J3 are grounded, the 3 pins of the J3 are divided into two paths, the first path is connected with a power supply VCC through a resistor R2, the second path is connected with the corresponding input end of the first microprocessor, and the J3 is connected with the signal output end of the photoelectric receiver.
The further technical scheme is as follows: the nixie tube indicating module comprises a DPY _7-SEG _ DP type nixie tube DS1, wherein pins 1 and 6 of the DS1 are grounded, and pins DS12 and 4-10 are respectively connected with a signal output end of the first microprocessor through a resistor.
The further technical scheme is as follows: the second power supply module comprises an FT110P-3 type filtering module M1 and an AC-DC-LS03-15B05SR2 type alternating current-to-direct current chip M2, wherein pins 1 and 3 of a connector J2 are connected with pins 1 and 3 of an M1, a potentiometer RV1 is connected between the pin 1 and the pin 3 of the M1, a pin 2 of the M1 is grounded, a pin 4 of the M1 is connected with the pin 1 of the M2, a pin 5 of the M1 is connected with the pin 3 of the M2, and a pin 5 of the M2 is connected with a pin 7 of the M2 through a capacitor E1; the pin 10 of the M2 is grounded, the pin 12 of the M2 is divided into four paths, the first path is grounded through a capacitor E2, the second path is grounded through a capacitor C2, the third path is grounded through a diode D1, and the fourth path is a power output end of the power module.
The further technical scheme is as follows: the processing host machine further comprises an acousto-optic alarm module, and the acousto-optic alarm module is connected with the signal output end of the processing host machine and used for sending out an alarm signal.
The further technical scheme is as follows: the photoelectric receiver comprises a receiver inner core and a water cooling sleeve positioned on the outer side of the inner core, the water cooling sleeve is fixed on an adjusting support through a fastening screw, a base is arranged at the bottom of the adjusting support, and a signal output end of the receiver inner core is connected with a signal input end of the first microprocessor through a switch input channel.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: in the application, the host controls the laser emitter to emit laser to the glass liquid level, the laser emitted by the glass liquid level is received by the photoelectric receiver, and the received signal is transmitted to the host for processing. The laser emitter and the photoelectric receiver are matched with each other to measure the liquid level of the glass, the characteristics of good laser directionality, concentrated energy and the like are utilized to measure the liquid level of the glass, and the defects that radioactive element detection and platinum needle detection are high in cost, fittings need to be frequently replaced in pneumatic detection, and daily maintenance is complex are overcome. The method has the characteristics of high measurement precision, simple and convenient daily maintenance, long service life and the like, and can ensure that the liquid level of the glass is stably controlled for a long time, thereby improving the melting quality, stabilizing the furnace temperature, prolonging the service life of a kiln body, improving the quality of glass products and reducing the production cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic block diagram of a laser liquid level measuring device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a switch output channel in the host according to the embodiment of the present invention;
fig. 3 is a schematic diagram of a switch input channel in the host according to the embodiment of the present invention;
fig. 4 is a schematic block diagram of a laser transmitter in the laser liquid level measuring device according to the embodiment of the present invention;
fig. 5 is a schematic diagram of a second microprocessor in the laser transmitter according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a first interface circuit in a laser transmitter according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a second interface circuit in a laser transmitter according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a nixie tube indicating module in a laser transmitter according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a second power module in a laser transmitter according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an optoelectronic receiver in the laser liquid level measuring device according to the embodiment of the present invention;
wherein: 1. a receiver inner core; 2. water cooling jacket; 3. fastening screws; 4. adjusting the bracket; 5. a base; 6. the glass liquid level; 7. and a working material channel.
Detailed Description
The technical solutions in the embodiments of the present invention are 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 only some embodiments of the present invention, not 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.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the embodiment of the utility model discloses a laser liquid level measuring device, including processing host computer, laser emitter and photoelectric receiver, the processing host computer includes first microprocessor, laser emitter pass through switch output channel with first microprocessor is connected, laser emitter is used for transmitting laser under the control of first microprocessor; the photoelectric receiver is connected with the first microprocessor through a switch input channel and used for receiving a laser spot displacement signal reflected by the glass liquid level and transmitting the signal to the first microprocessor for processing; the display module is connected with the signal output end of the first microprocessor and used for displaying output data; the power supply output end of the first power supply module is connected with the power supply input end of a module needing power supply in the host machine and is used for providing working power supply for the module; and the sound-light alarm module is connected with the signal output end of the processing host and is used for sending out an alarm signal.
In the application, the host controls the laser emitter to emit laser to the glass liquid level, the laser emitted by the glass liquid level is received by the photoelectric receiver, and the received signal is transmitted to the host for processing. The laser emitter and the photoelectric receiver are matched with each other to measure the liquid level of the glass, the characteristics of good laser directionality, concentrated energy and the like are utilized to measure the liquid level of the glass, and the defects that radioactive element detection and platinum needle detection are high in cost, fittings need to be frequently replaced in pneumatic detection, and daily maintenance is complex are overcome. The method has the characteristics of high measurement precision, simple and convenient daily maintenance, long service life and the like, and can ensure that the liquid level of the glass is stably controlled for a long time, thereby improving the melting quality, stabilizing the furnace temperature, prolonging the service life of a kiln body, improving the quality of glass products and reducing the production cost.
As shown in fig. 2, the switch output channel includes a connector JSSR, a pin 1 of the JSSR is connected to a pin 1 of an SSR1 of an JGX-3 FA-type dc solid-state relay, a pin 2 of the JSSR is connected to a pin 2 of an SSR1 of an JGX-3 FA-type dc solid-state relay, a pin 4 of the SSR1 is connected to a +24V power supply, a pin 3 of the SSR1 is divided into two paths, the first path is connected to an emitter of a transistor Q1, the second path is connected to a pin 1 of a connector JOUT1, pins 2 and 3 of the JOUT1 are connected to the +24V power supply, the emitter of the transistor Q1 is connected to the +24V power supply through a diode D2, and a collector of the transistor Q1 is grounded; the base electrode of the triode Q1 is divided into two paths, the first path is sequentially connected with a +24V power supply through a light emitting diode LED1 and a resistor R68, the second path is connected with the collector electrode of a phototriode of a TLP521-4 type optocoupler U7A, the emitter electrode of the phototriode of U7A is grounded, the anode of an infrared light emitting diode of U7A is connected with a power supply VCC through a resistor R64, and the cathode of the infrared light emitting diode of U7A is a signal output end;
a pin 3 of the JSR is connected with a pin 1 of an SSR2 of an JGX-3FA type direct current solid state relay, a pin 4 of the JSR is connected with a pin 4 of an SSR2 of a JGX-3FA type direct current solid state relay, a pin 4 of the SSR2 is connected with a +24V power supply, a pin 3 of the SSR2 is divided into two paths, the first path is connected with an emitter of a triode Q2, the second path is connected with a pin 4 of a connector JOUT1, an emitter of the triode Q2 is connected with a +24V power supply through a diode D3, and a collector of the triode Q2 is grounded; the base electrode of the triode Q2 is divided into two paths, the first path is sequentially connected with a +24V power supply through a secondary light emitting diode LED2 and a resistor R69, the second path is connected with the collector electrode of a phototriode of a TLP521-4 type optocoupler U7B, the emitter electrode of the phototriode of U7B is grounded, the anode of an infrared light emitting diode of U7B is connected with a power supply VCC through a resistor R65, and the cathode of the infrared light emitting diode of U7B is a signal output end.
As shown in fig. 3, the switch input channel includes a plurality of switch input units and a connector JIN, the switch input units include a TLP521-4 type optocoupler U8A, pin 1 of the JIN is divided into two paths, a first path is connected to an anode of the infrared light emitting diode in the U8A through a capacitor C4, a second path is connected to a cathode of the infrared light emitting diode in the U8A, an anode of the infrared light emitting diode in the U8A is connected to a +24V power supply through a resistor R56, an emitter of the phototriode in the U8A is grounded, a collector of the phototriode in the U8A is divided into two paths, the first path is grounded through a resistor R60, and the second path is an output end of the switch input channel.
As shown in fig. 4, the laser transmitter includes a He-Ne laser, a second microprocessor, a second power module, and a nixie tube indication module, an output end of the second microprocessor is connected to a signal input end of the He-Ne laser through a first interface module, an output end of the He-Ne laser is connected to a signal input end of the second microprocessor through a second interface module, a serial module is bidirectionally connected to the second microprocessor and is used for connecting the laser transmitter to the processing host, the nixie tube indication module is connected to a signal output end of the second microprocessor, the second power module is used for providing a working power supply for the He-Ne laser, and the He-Ne laser is used for emitting laser outwards.
Laser emitter is for short the transmitter, and service environment temperature: 0-60 ℃. It uses He-Ne laser, and its output power is greater than or equal to 2.5 mW. Starting voltage: 6000-7000V; maintaining the voltage: 1200V; working current: 4.0 mA. When in use, the back part of the electric kettle is connected with 220V alternating current to be normally used. Note that: firstly, a high voltage is arranged in the laser transmitter, and a layman does not need to open the laser transmitter; III-level laser is harmful to human eyes and does not need to be viewed directly by eyes; thirdly, when the professional carries out the internal operation, the power supply must be cut off! If the client changes the He-Ne laser, the client needs to adjust the working current to the rated current, the current is too small, the flicker is easily caused, and the service life is influenced by too large current.
As shown in fig. 5, the second microprocessor preferably uses a STC12C56XX-QFP32 type single chip microcomputer U1, and it should be noted that the second microprocessor may also use other types of processors.
As shown in fig. 6, the input terminal of the first interface circuit is divided into two paths, the first path is connected to the power VCC through a resistor R19, the second path is connected to the base of a transistor Q1 through a resistor R20, the collector of the transistor Q1 is grounded, the emitter of the transistor Q1 is divided into three paths, the first path is grounded through a resistor R22, the second path is connected to the pin 2 of a connector J1, the third path is connected to one end of a capacitor E4, the other end of the capacitor E4 is divided into two paths, the first path is connected to the power VCC through a resistor R21, the second path is connected to the pin 1 of a connector J1, and the connector J1 is connected to the signal input terminal of the.
As shown in fig. 7, the second interface circuit includes a connector J3, where pin 1 of the J3 is divided into two paths, the first path is grounded via a capacitor C1, and the second path is connected to a power source VCC; the 2 pins of the J3 are grounded, the 3 pins of the J3 are divided into two paths, the first path is connected with a power supply VCC through a resistor R2, the second path is connected with the corresponding input end of the first microprocessor, and the J3 is connected with the signal output end of the photoelectric receiver.
As shown in fig. 8, the nixie tube indicating module includes a DPY _7-SEG _ DP type nixie tube DS1, pins 1 and 6 of the DS1 are grounded, and pins DS12 and 4-10 are respectively connected to a signal output terminal of the first microprocessor through a resistor.
As shown in fig. 9, the second power module includes an FT110P-3 type filtering module M1 and an AC-DC-LS03-15B05SR2 type AC-to-DC conversion chip M2, pins 1 and 3 of a connector J2 are connected to pins 1 and 3 of the M1, a potentiometer RV1 is connected between pin 1 and pin 3 of the M1, pin 2 of the M1 is grounded, pin 4 of the M1 is connected to pin 1 of the M2, pin 5 of the M1 is connected to pin 3 of the M2, and pin 5 of the M2 is connected to pin 7 of the M2 through a capacitor E1; the pin 10 of the M2 is grounded, the pin 12 of the M2 is divided into four paths, the first path is grounded through a capacitor E2, the second path is grounded through a capacitor C2, the third path is grounded through a diode D1, and the fourth path is a power output end of the power module.
As shown in fig. 10, the photoelectric receiver includes a receiver inner core 1 and a water cooling jacket 2 located outside the inner core, the water cooling jacket 2 is fixed on an adjusting bracket 4 through a fastening screw 3, a base 5 is arranged at the bottom of the adjusting bracket 4, and a signal output end of the receiver inner core 1 is connected with a signal input end of the first microprocessor through a switch input channel. And the photoelectric receiver is a receiver for short and is used for detecting laser spot displacement signals reflected by the glass liquid level and transmitting original signals to the host. The temperature of the use environment: 0-60 ℃. When the silicon photoelectric cell is used, the laser beams irradiate on the silicon photoelectric cell component, and the two cooling ports at the lower part of the receiver are used for receiving and circulating cold water or cold air (the water pressure or the air pressure does not need to be too large) so as to ensure that the receiver operates in an ambient temperature range. The receiver converts the laser signal into an electric signal and outputs the electric signal in milliampere current. The output consists of three signal lines, where black is the common, blue is the upper channel, and yellow is the lower channel.
Claims (10)
1. A laser liquid level measuring device is characterized in that: the photoelectric processing system comprises a processing host, a laser transmitter and a photoelectric receiver, wherein the processing host comprises a first microprocessor, the laser transmitter is connected with the first microprocessor through a switch output channel, and the laser transmitter is used for transmitting laser under the control of the first microprocessor; the photoelectric receiver is connected with the first microprocessor through a switch input channel and is used for receiving a laser spot displacement signal reflected by the glass liquid level (6) and transmitting the signal to the first microprocessor for processing; the display module is connected with the signal output end of the first microprocessor and used for displaying output data; and the power supply output end of the first power supply module is connected with the power supply input end of a module needing power supply in the host machine and is used for providing a working power supply for the module.
2. The laser liquid level measuring device according to claim 1, wherein: the switch output channel comprises a connector JSR, wherein a pin 1 of the JSR is connected with a pin 1 of an JGX-3FA type direct current solid state relay SSR1, a pin 2 of the JSR is connected with a pin 2 of an JGX-3FA type direct current solid state relay SSR1, a pin 4 of the SSR1 is connected with a +24V power supply, a pin 3 of the SSR1 is divided into two paths, the first path is connected with an emitter of a triode Q1, the second path is connected with a pin 1 of a connector JOUT1, the pin 2 and the pin 3 of the JOUT1 are connected with the +24V power supply, the emitter of the triode Q1 is connected with the +24V power supply through a diode D2, and a collector of the triode Q1 is grounded; the base electrode of the triode Q1 is divided into two paths, the first path is sequentially connected with a +24V power supply through a light emitting diode LED1 and a resistor R68, the second path is connected with the collector electrode of a phototriode of a TLP521-4 type optocoupler U7A, the emitter electrode of the phototriode of U7A is grounded, the anode of an infrared light emitting diode of U7A is connected with a power supply VCC through a resistor R64, and the cathode of the infrared light emitting diode of U7A is a signal output end;
a pin 3 of the JSR is connected with a pin 1 of an SSR2 of an JGX-3FA type direct current solid state relay, a pin 4 of the JSR is connected with a pin 4 of an SSR2 of a JGX-3FA type direct current solid state relay, a pin 4 of the SSR2 is connected with a +24V power supply, a pin 3 of the SSR2 is divided into two paths, the first path is connected with an emitter of a triode Q2, the second path is connected with a pin 4 of a connector JOUT1, an emitter of the triode Q2 is connected with a +24V power supply through a diode D3, and a collector of the triode Q2 is grounded; the base electrode of the triode Q2 is divided into two paths, the first path is sequentially connected with a +24V power supply through a secondary light emitting diode LED2 and a resistor R69, the second path is connected with the collector electrode of a phototriode of a TLP521-4 type optocoupler U7B, the emitter electrode of the phototriode of U7B is grounded, the anode of an infrared light emitting diode of U7B is connected with a power supply VCC through a resistor R65, and the cathode of the infrared light emitting diode of U7B is a signal output end.
3. The laser liquid level measuring device according to claim 1, wherein: the switch input channel comprises a plurality of switch input units and a connector JIN, the switch input units comprise TLP521-4 type optocouplers U8A, pin 1 of JIN is divided into two paths, the first path is connected with the anode of the infrared light emitting diode in U8A through a capacitor C4, the second path is connected with the cathode of the infrared light emitting diode in U8A, the anode of the infrared light emitting diode in U8A is connected with a +24V power supply through a resistor R56, the emitter of the phototriode in U8A is grounded, the collector of the phototriode in U8A is divided into two paths, the first path is grounded through a resistor R60, and the second path is the output end of the switch input channel.
4. The laser liquid level measuring device according to claim 1, wherein: the laser emitter comprises a He-Ne laser, a second microprocessor, a second power supply module and a nixie tube indicating module, wherein the output end of the second microprocessor is connected with the signal input end of the He-Ne laser through a first interface module, the output end of the He-Ne laser is connected with the signal input end of the second microprocessor through a second interface module, a serial port module is bidirectionally connected with the second microprocessor and used for connecting the laser emitter with the processing host, the nixie tube indicating module is connected with the signal output end of the second microprocessor, the second power supply module is used for providing a working power supply for the He-Ne laser, and the He-Ne laser is used for emitting laser outwards.
5. The laser liquid level measuring device according to claim 4, wherein: the second microprocessor uses a STC12C56XX-QFP32 type singlechip U1.
6. The laser liquid level measuring device according to claim 4, wherein: the input end of the first interface circuit is divided into two paths, the first path is connected with a power supply VCC through a resistor R19, the second path is connected with the base electrode of a triode Q1 through a resistor R20, the collector electrode of the triode Q1 is grounded, the emitter electrode of the triode Q1 is divided into three paths, the first path is grounded through a resistor R22, the second path is connected with a pin 2 of a connector J1, the third path is connected with one end of a capacitor E4, the other end of the capacitor E4 is divided into two paths, the first path is connected with the power supply VCC through a resistor R21, the second path is connected with a pin 1 of the connector J1, and the connector J1 is connected with the signal input.
7. The laser liquid level measuring device according to claim 4, wherein: the second interface circuit comprises a connector J3, a pin 1 of the J3 is divided into two paths, the first path is grounded through a capacitor C1, and the second path is connected with a power supply VCC; the 2 pins of the J3 are grounded, the 3 pins of the J3 are divided into two paths, the first path is connected with a power supply VCC through a resistor R2, the second path is connected with the corresponding input end of the first microprocessor, and the J3 is connected with the signal output end of the photoelectric receiver.
8. The laser liquid level measuring device according to claim 4, wherein: the nixie tube indicating module comprises a DPY _7-SEG _ DP type nixie tube DS1, wherein pins 1 and 6 of the DS1 are grounded, and pins DS12 and 4-10 are respectively connected with a signal output end of the first microprocessor through a resistor.
9. The laser liquid level measuring device according to claim 4, wherein: the second power supply module comprises an FT110P-3 type filtering module M1 and an AC-DC-LS03-15B05SR2 type alternating current-to-direct current chip M2, wherein pins 1 and 3 of a connector J2 are connected with pins 1 and 3 of an M1, a potentiometer RV1 is connected between the pin 1 and the pin 3 of the M1, a pin 2 of the M1 is grounded, a pin 4 of the M1 is connected with the pin 1 of the M2, a pin 5 of the M1 is connected with the pin 3 of the M2, and a pin 5 of the M2 is connected with a pin 7 of the M2 through a capacitor E1; the pin 10 of the M2 is grounded, the pin 12 of the M2 is divided into four paths, the first path is grounded through a capacitor E2, the second path is grounded through a capacitor C2, the third path is grounded through a diode D1, and the fourth path is a power output end of the power module.
10. The laser liquid level measuring device according to claim 1, wherein: the photoelectric receiver comprises a receiver inner core (1) and a water cooling sleeve (2) located on the outer side of the inner core, the water cooling sleeve (2) is fixed on an adjusting support (4) through a fastening screw (3), a base (5) is arranged at the bottom of the adjusting support (4), and a signal output end of the receiver inner core (1) is connected with a signal input end of a first microprocessor through a switch input channel.
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