CN111337104A - Intelligent anti-interference double-cavity radar level meter - Google Patents
Intelligent anti-interference double-cavity radar level meter Download PDFInfo
- Publication number
- CN111337104A CN111337104A CN202010299735.4A CN202010299735A CN111337104A CN 111337104 A CN111337104 A CN 111337104A CN 202010299735 A CN202010299735 A CN 202010299735A CN 111337104 A CN111337104 A CN 111337104A
- Authority
- CN
- China
- Prior art keywords
- fixed
- frequency filter
- radar level
- mounting disc
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses an intelligent anti-interference dual-cavity radar level meter which comprises an installation disc, wherein an automatic adjusting device is arranged at the lower end of the installation disc, a groove is formed in one side of the upper end of the installation disc, a fixed box is installed in the groove, a second servo motor is arranged in the fixed box, a connecting rod is fixed at the tail end of an output shaft of the second servo motor, the upper end of the connecting rod penetrates through the top in the fixed box and extends to the upper end of the installation disc, and the connecting rod is in transmission connection with a bearing rod through a speed reducer. The invention not only solves the problem that the existing double-cavity radar level meter cannot automatically filter redundant electromagnetic waves, improves the receiving efficiency, ensures the measurement accuracy, but also can automatically convert the angle according to the measurement requirement, saves time and labor, improves the measurement efficiency, can automatically adjust the height and the levelness, reduces the working intensity of workers, meets the measurement requirement, improves the practicability, reduces the labor cost and is convenient to use.
Description
Technical Field
The invention relates to the technical field of microwave measuring equipment, in particular to an intelligent anti-interference dual-cavity radar level meter.
Background
The radar level meter is a mainstream product in the level measuring instrument market and mainly comprises a radar level meter and a guided wave radar level meter, wherein the radar level meter adopts a microwave pulse measuring method, can be normal in an industrial frequency wave band range, has low wave beam energy, can be installed in various metal and nonmetal containers or pipelines, and can be used for carrying out non-contact continuous measurement on the level of liquid, slurry and granular materials. The method is suitable for occasions with large changes of dust, temperature and pressure and the existence of inert gases and steam. The radar level meter has no harm to human body and environment, and has the advantages of no influence of specific gravity of medium, no influence of dielectric constant change, no need of on-site calibration, etc., and is a good choice for both industrial needs and economic and practical considerations of customers.
Radar level meter is also innovating according to different demands, however, current two-chamber radar level meter can not automatically filter unnecessary electromagnetic wave, lead to the receiving efficiency low, can't guarantee the measuring precision, still can not be according to measuring needs automatically regulated height and levelness, take trouble and difficultly, staff's working strength has been improved, the cost is increased, measurement of efficiency is reduced, also can not be according to measuring needs automatic conversion angle, for this reason, we propose an intelligent anti-jamming two-chamber radar level meter and solve above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an intelligent anti-interference dual-cavity radar level gauge.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent anti-interference dual-cavity radar level meter comprises an installation disc, wherein an automatic adjusting device is arranged at the lower end of the installation disc, a groove is formed in one side of the upper end of the installation disc, a fixed box is installed in the groove, a second servo motor is arranged in the fixed box, a connecting rod is fixed at the tail end of an output shaft of the second servo motor, the upper end of the connecting rod penetrates through the top in the fixed box and extends to the upper end of the installation disc, the connecting rod is connected with a bearing rod through a speed reducer in a transmission manner, a first gear is fixed on the bearing rod, a rotating block is rotatably connected to the upper end of the installation disc, a second gear is fixed on the rotating block and is meshed with the first gear, a fixed block is fixed at the upper end of the rotating block, a transmitter is installed on one side of the fixed block, an installation block is arranged at the upper end of the fixed block, and a transmitting, all install receiving antenna on the both ends lateral wall of fixed block, circulator, high frequency filter, low frequency filter and amplitude limiter have connected gradually in the receiving antenna, circulator output and high frequency filter input electric connection high frequency filter output and low frequency filter input electric connection, low frequency filter output and amplitude limiter input electric connection, be equipped with the steel bushing between high frequency filter output and the low frequency filter input.
Preferably, the automatic regulating device includes the spirit level installed at the mounting disc lower extreme, the lower extreme of mounting disc is equidistant to be fixed with four guard boxes, be equipped with first servo motor in the guard box, the output shaft end all is fixed with the dwang of four first servo motor, the lower extreme of dwang runs through the bottom in the guard box and extends to the lower extreme of guard box, the lower extreme of dwang is fixed with the screw rod, and the movable block has been cup jointed to the screw thread respectively on four screw rods, the lower extreme one side of guard box is fixed with the gag lever post, be equipped with the through-hole that corresponds with the gag lever post on the movable block, four gag lever post lower extremes extend to in four through-holes respectively, and one side of four movable blocks all is fixed.
Preferably, the cover is equipped with first safety cover and second safety cover on first gear and the second gear, and first safety cover and second safety cover all install the upper end at the mounting disc through two bolts.
Preferably, a protective cover is rotatably connected to one side of the mounting block, and the protective cover corresponds to the transmitting antenna and the transmitter.
Preferably, the transmitter, the transmitting antenna and the receiving antenna are oriented in the same direction.
Preferably, the bottom of the supporting leg is conical.
Compared with the prior art, the invention has the beneficial effects that:
1. through the matching of the automatic adjusting device, the mounting disc, the level gauge and the first servo motor, the mounting disc can be driven to lift and adjust by using the automatic adjusting device and the level gauge, the problem that the height and the levelness of the conventional double-cavity radar level gauge cannot be automatically adjusted according to the measurement requirement is solved, the aim of reducing the working intensity of workers is fulfilled, time and labor are saved, the labor cost is reduced, and the use is convenient;
2. through the matching of the second servo motor, the speed reducer, the first gear, the second gear, the rotating block and the mounting disc, the second servo motor is used for driving the rotating block to rotate on the mounting disc, the problem that the conventional double-cavity radar level meter cannot automatically convert angles according to the measurement requirement is solved, time and labor are saved, rapid measurement can be carried out at the same position in multiple progresses, and the measurement efficiency is improved;
3. through the cooperation of receiving antenna, amplitude limiter, circulator, high frequency filter, low frequency filter and steel bushing, use high frequency filter and low frequency filter to improve receiving antenna's reception efficiency, use amplitude limiter, circulator and steel bushing to external electromagnetic wave shield and cut the interference of output waveform top or bottom, solved current two-chamber radar level meter can not the problem of the unnecessary electromagnetic wave of automatic filtration, improved reception efficiency, guaranteed the measuring precision, facilitate the use.
In conclusion, the invention not only solves the problem that the existing double-cavity radar level meter cannot automatically filter redundant electromagnetic waves, improves the receiving efficiency, ensures the measurement accuracy, but also can automatically convert the angle according to the measurement requirement, saves time and labor, improves the measurement efficiency, can automatically adjust the height and the levelness, reduces the working intensity of workers, meets the measurement requirement, improves the practicability, reduces the labor cost and is convenient to use.
Drawings
FIG. 1 is a schematic diagram of an internal structure of an intelligent anti-interference dual-cavity radar level gauge according to the present invention;
FIG. 2 is a schematic diagram of an external structure of an intelligent anti-jamming dual-cavity radar level gauge according to the present invention;
FIG. 3 is an enlarged view of the position A of the intelligent anti-interference dual-cavity radar level gauge according to the present invention;
FIG. 4 is an enlarged view of a portion B of the intelligent anti-jamming dual-cavity radar level gauge according to the present invention;
FIG. 5 is a schematic structural view of a first protective cover of the intelligent anti-jamming dual-cavity radar level gauge according to the present invention.
In the figure: the device comprises a mounting disc 1, a first servo motor 2, a screw rod 3, a limiting rod 4, a supporting leg 5, a second servo motor 6, a speed reducer 7, a first gear 8, a second gear 9, a rotating block 10, a mounting block 11, a transmitting antenna 12, a transmitter 13, a fixing block 14, a level meter 15, a protective box 16, a protective cover 17, a moving block 18, a bolt 19, a first protective cover 20, a receiving antenna 21, an amplitude limiter 22, a circulator 23, a high-frequency filter 24, a low-frequency filter 25, a steel sleeve 26 and a second protective cover 27.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an intelligent anti-interference dual-cavity radar level gauge comprises a mounting disc 1, an automatic adjusting device is arranged at the lower end of the mounting disc 1, a groove is arranged on one side of the upper end of the mounting disc 1, a fixed box is arranged in the groove and plays a role in protection, a second servo motor 6 is arranged in the fixed box and provides stable power and can rotate forwards and backwards, a connecting rod is fixed at the tail end of an output shaft of the second servo motor 6, the upper end of the connecting rod penetrates through the top in the fixed box and extends to the upper end of the mounting disc 1, the connecting rod is connected with a bearing rod through a speed reducer 7 in a transmission manner, a first gear 8 is fixed on the bearing rod, a rotating block 10 is rotatably connected to the upper end of the mounting disc 1, a second gear 9 is fixed on the rotating block 10, the second gear 9 is meshed with the first gear 8, direction adjustment is convenient, and the second servo motors 6 and 7 are used, the second servo motor 6 is used for driving the rotating block 10 to rotate on the mounting disc 1 through the matching of the second servo motor 6, the speed reducer 7, the first gear 8, the second gear 9, the rotating block 10 and the mounting disc 1, the angle can be automatically changed according to the measurement requirement, time and labor are saved, the rapid measurement can be carried out at the same position in multiple angles, and the measurement efficiency is improved;
a fixed block 14 is fixed at the upper end of the rotating block 10, a transmitter 13 is installed on one side of the fixed block 14, an installation block 11 is arranged at the upper end of the fixed block 14, a transmitting antenna 12 is arranged on one side of the installation block 11, receiving antennas 21 are installed on the side walls of the two ends of the fixed block 14, a protective cover 17 is connected to one side of the installation block 11 in a rotating mode, the protective cover 17 corresponds to the transmitting antenna 12 and the transmitter 13, a second servo motor 6 and a speed reducer 7 are used for driving a first gear 8 to rotate so as to drive a second gear 9 to rotate, the rotating block 10 is driven to rotate so as to drive the transmitter 13, the transmitting antenna 12 and the receiving antenna 21 to rotate, the transmitting antenna 12 and the transmitter 13 are conveniently protected through the protective cover 17, the service life;
the receiving antenna 21 is internally and sequentially connected with a circulator 23, a high-frequency filter 24, a low-frequency filter 25 and an amplitude limiter 22, the output end of the circulator 23 is electrically connected with the input end of the high-frequency filter 24, the output end of the high-frequency filter 24 is electrically connected with the input end of the low-frequency filter 25, the output end of the low-frequency filter 25 is electrically connected with the input end of the amplitude limiter 22, a steel sleeve 26 is arranged between the output end of the high-frequency filter 24 and the input end of the low-frequency filter 25, the directions of the transmitter 13, the transmitting antenna 12 and the receiving antenna 21 are the same, the receiving antenna 21, the amplitude limiter 22, the circulator 23, the high-frequency filter 24, the low-frequency filter 25 and the steel sleeve 26 are matched, the receiving efficiency of the receiving antenna 21 is improved by using the high-frequency filter 24 and the low-frequency filter, the receiving efficiency is improved, and the measuring accuracy is ensured.
In the invention, an automatic adjusting device comprises a level gauge 15 arranged at the lower end of a mounting disc 1, four protective boxes 16 are fixed at the lower end of the mounting disc 1 at equal intervals, a first servo motor 2 is arranged in each protective box 16, a rotating rod is fixed at the tail end of an output shaft of each first servo motor 2, the lower end of each rotating rod penetrates through the bottom in each protective box 16 and extends to the lower end of each protective box 16, a screw 3 is fixed at the lower end of each rotating rod, moving blocks 18 are respectively sleeved on the four screw 3 in a threaded manner, a limiting rod 4 is fixed on one side of the lower end of each protective box 16, through holes corresponding to the limiting rods 4 are formed in each moving block 18, the lower ends of the four limiting rods 4 respectively extend into the four through holes, supporting legs 5 are fixed on one sides of the four moving blocks 18, the bottoms of the supporting legs 5 are arranged in a conical manner, and when, thereby drive movable block 18 and slide from top to bottom at gag lever post 4, drive supporting leg 5 and reciprocate then, according to 15 automatically regulated levelness of spirit level, can be according to measuring needs automatically regulated height and levelness, realized reducing staff's working strength's purpose, labour saving and time saving has reduced the cost of labor, facilitates the use.
According to the invention, the first gear 8 and the second gear 9 are sleeved with the first protective cover 20 and the second protective cover 27, the first protective cover 20 and the second protective cover 27 are both arranged at the upper end of the mounting disc 1 through the two bolts 19, so that the mounting disc is convenient to disassemble, fingers are prevented from being squeezed and injured during rotation through the first protective cover 20 and the second protective cover 27, and the safety is improved.
In the invention, when in use, the protective cover 17 is rotated to one side of the upper end of the mounting block 11, when the levelness needs to be adjusted, four first servo motors 2 are used for driving four screw rods 3 to rotate, thereby driving the moving block 18 to slide up and down on the limiting rod 4, further driving the supporting leg 5 to move up and down, the levelness is automatically adjusted according to the level meter 15, when the levelness needs to be measured, electromagnetic waves are sent through the transmitter 13 and the transmitting antenna 12 and are received by the receiving antenna 21, when signals are received, the receiving efficiency of the receiving antenna 21 is improved by using the high-frequency filter 24 and the low-frequency filter 25, the electromagnetic waves outside are shielded by using the amplitude limiter 22, the circulator 23 and the steel sleeve 26, interference on the top or the bottom of an output waveform is cut off, automatic intelligence is realized, when the angle needs to be converted, the second servo motor 6 and the speed reducer 7, thereby drive second gear 9 and rotate, drive turning block 10 and rotate then, and then drive transmitter 13, transmitting antenna 12 and receiving antenna 21 and rotate, realized measuring angle's regulation, improved measurement of efficiency, facilitate the use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides an intelligent anti-interference two-chamber radar level meter, includes mounting disc (1), its characterized in that: the lower extreme of mounting disc (1) is equipped with automatic regulating apparatus, upper end one side of mounting disc (1) is equipped with the recess, install fixed case in the recess, be equipped with second servo motor (6) in the fixed case, the output shaft end of second servo motor (6) is fixed with the connecting rod, the upper end of connecting rod runs through the top in the fixed case and extends to the upper end of mounting disc (1), the connecting rod is connected with the carrier bar through speed reducer (7) transmission, be fixed with first gear (8) on the carrier bar, the upper end of mounting disc (1) is rotated and is connected with turning block (10), be fixed with second gear (9) on turning block (10), and second gear (9) and first gear (8) intermeshing, the upper end of turning block (10) is fixed with fixed block (14), transmitter (13) is installed to one side of fixed block (14), the upper end of fixed block (14) is equipped with installation piece (11), one side of installation piece (11) is equipped with transmitting antenna (12), all install receiving antenna (21) on the both ends lateral wall of fixed block (14), circulator (23), high frequency filter (24), low frequency filter (25) and amplitude limiter (22) have connected gradually in receiving antenna (21), circulator (23) output and high frequency filter (24) input electric connection high frequency filter (24) output and low frequency filter (25) input electric connection, low frequency filter (25) output and amplitude limiter (22) input electric connection, be equipped with steel bushing (26) between high frequency filter (24) output and low frequency filter (25) input.
2. An intelligent, interference-resistant, dual-cavity radar level gauge, according to claim 1, wherein: the automatic adjusting device comprises a level gauge (15) arranged at the lower end of the mounting disc (1), four protection boxes (16) are fixed at the lower end of the mounting disc (1) at equal intervals, a first servo motor (2) is arranged in each protection box (16), rotating rods are fixed at the tail ends of output shafts of the four first servo motors (2), the lower end of the rotating rod penetrates through the bottom in the protection box (16) and extends to the lower end of the protection box (16), the lower end of the rotating rod is fixed with a screw (3), the four screw (3) are respectively sleeved with a moving block (18) in a threaded manner, limiting rods (4) are fixed on one side of the lower end of the protection box (16), through holes corresponding to the limiting rods (4) are formed in the moving blocks (18), the lower ends of the four limiting rods (4) respectively extend into the four through holes, and supporting legs (5) are fixed on one sides of the four moving blocks (18).
3. An intelligent, interference-resistant, dual-cavity radar level gauge, according to claim 1, wherein: first gear (8) and second gear (9) are gone up the cover and are equipped with first safety cover (20) and second safety cover (27), and first safety cover (20) and second safety cover (27) all install the upper end at mounting disc (1) through two bolts (19).
4. An intelligent, interference-resistant, dual-cavity radar level gauge, according to claim 1, wherein: one side of the mounting block (11) is rotatably connected with a protective cover (17), and the protective cover (17) corresponds to the transmitting antenna (12) and the transmitter (13).
5. An intelligent, interference-resistant, dual-cavity radar level gauge, according to claim 1, wherein: the direction of the transmitter (13), the transmitting antenna (12) and the receiving antenna (21) is the same.
6. An intelligent, interference-resistant, dual-cavity radar level gauge, according to claim 2, wherein: the bottom of the supporting leg (5) is arranged in a conical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299735.4A CN111337104A (en) | 2020-04-16 | 2020-04-16 | Intelligent anti-interference double-cavity radar level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299735.4A CN111337104A (en) | 2020-04-16 | 2020-04-16 | Intelligent anti-interference double-cavity radar level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111337104A true CN111337104A (en) | 2020-06-26 |
Family
ID=71185012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010299735.4A Pending CN111337104A (en) | 2020-04-16 | 2020-04-16 | Intelligent anti-interference double-cavity radar level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111337104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510341A (en) * | 2020-11-27 | 2021-03-16 | 河北北斗天汇科技有限公司 | Automatic change anti-interference antenna for big dipper third generation satellite system of adjusting |
-
2020
- 2020-04-16 CN CN202010299735.4A patent/CN111337104A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510341A (en) * | 2020-11-27 | 2021-03-16 | 河北北斗天汇科技有限公司 | Automatic change anti-interference antenna for big dipper third generation satellite system of adjusting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211552991U (en) | Intelligent anti-interference double-cavity radar level meter | |
| CN111337104A (en) | Intelligent anti-interference double-cavity radar level meter | |
| CN106887703B (en) | 5-meter antenna turntable | |
| CN215893854U (en) | Rotating shaft torque measuring device | |
| CN109141377B (en) | River channel water level and flow velocity integrated real-time monitoring device | |
| CN208191269U (en) | A kind of small-sized pot seedling automatic transplanting electric chassis | |
| CN112599976A (en) | Portable Ka-band continuous wave cloud and fog radar | |
| CN210005245U (en) | gearbox transmission efficiency detection device | |
| CN114001660B (en) | All-digital photoelectric correction sensor with fine tuning structure | |
| CN104282994A (en) | Manual intervention radar servo mechanism | |
| CN106500748B (en) | A kind of precision positioning lifting device for ultra-short baseline | |
| CN210800637U (en) | External mounting rack of adjustable liquid level instrument | |
| CN212807221U (en) | Water level monitoring device for hydraulic engineering | |
| CN219244740U (en) | Radar level gauge with adjustable installation angle | |
| CN215767277U (en) | Frequency modulation radar level meter | |
| CN213515882U (en) | Wave-gathering cover of radar level meter | |
| CN112563720A (en) | Automatic leveling device for antenna erection and control system thereof | |
| CN208200178U (en) | A kind of anti-collision device for lifting hook of crane | |
| CN209102754U (en) | A kind of diesel engine speed sensor calibration device | |
| CN208208979U (en) | A kind of pole as communication | |
| CN219347901U (en) | Novel high-frequency radar level gauge | |
| CN221099825U (en) | But radar level gauge of multi-angle regulation | |
| CN215569335U (en) | Integrated infrared laser radar detection nursing device | |
| CN220702362U (en) | Ultrasonic off tracking switch | |
| CN211477309U (en) | Ultrasonic liquid level meter convenient to place and highly seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |