331results about "Level indicators by dip members" patented technology

The utility model discloses a water level monitoring device for water environment governance, which comprises a supporting device, a displacement device is sleeved on the outer ring of the rear end of the supporting device in a sliding manner, a cleaning device is fixedly mounted at the top end of the supporting device, and the displacement device comprises a displacement sleeve plate, a pointer and an air bag. The air bags are fixedly installed at the two ends of the displacement sleeve plate, the pointers are symmetrically and fixedly installed at the front end of the displacement sleeve plate, the cleaning device comprises a scraping plate, a worm wheel, a supporting frame, a winding wheel and a connecting rope, the worm wheel is rotationally installed in the center of the front end of the supporting frame, and the winding wheel is fixedly installed in the center of the front end of the worm wheel. And the connecting rope is fixedly installed on the outer ring of the winding wheel, the scraping plate is fixedly installed at the bottom end of the connecting rope, and the supporting device comprises a driving motor, a worm, a vertical groove, a vertical plate and a round rod. Through the arrangement of the displacement device, the cleaning device and the supporting device, the purpose of cleaning the scaleplate is achieved.

Methods, apparatus, and systems for determining a level of a liquid in a liquid-containing vessel are disclosed. The liquid-containing vessel may be fluidically connected to a displacer cage. The method may include obtaining, with a load measurement device, a weight force of a displacer suspended from the load measurement device and disposed within the displacer cage. The method may also include submerging the displacer into the liquid and obtaining, with the load measurement device, a net force acting on the displacer. The method may further include obtaining, with a liquid density measurement sensor disposed within the displacer cage, a liquid density at a first location of the liquid. The method may still further include determining, using, at least, the net force and the liquid density at the first location of the liquid, the level of the liquid in the vessel.

The utility model discloses a fire-fighting natural water source intake water level monitor, which relates to the technical field of water level monitoring and comprises a tripod device and an aluminum alloy box staff, a telescopic pull box is fixedly mounted at the top end of the aluminum alloy box staff, and a steel wire rope is fixedly connected between the telescopic pull box and a support plate. The steel wire rope is movably sleeved with a noctilucent floating ball; both the tripod device and the aluminum alloy box staff can be adjusted within a certain range according to the liquid level height of a natural water area, the liquid level height information can be conveniently collected through the arranged noctilucent floating ball, the liquid level height information can be conveniently used at night through the arranged spotlight, and the tripod device can be folded and is convenient to carry. The portability is further improved through the arranged straps, a water source can be found conveniently, whether the selected water source meets the water taking condition or not can be reported to a commander, and in addition, barbs are additionally arranged on the side face of a fixing base of the tripod device and can be inserted into sludge to improve the stability of the tripod device.

The invention discloses a water surface LNAPL layer thickness online monitoring device and method based on the light refraction principle. The device is composed of a laser range finder, a light receiver, a light source, a distance rod, data processing equipment and the like. The length of the distance rod in liquid is calculated through data of a laser range finder, and the thickness of the oil film in underground water is calculated according to the transverse propagation distance difference of the running path of light passing through an oil layer or not. The device is free of moving equipment, low in failure rate, small in size and high in precision, and is not influenced by underground water level fluctuation. According to the method, real-time online monitoring of the NAPL phase thickness in underground water can be realized through the underground water monitoring well.

The utility model relates to the technical field of underground water level measuring devices, and discloses an underground water level ruler suitable for various wellhead conditions, which comprises a support main body, a control panel is mounted on one side of the support main body, and a switch, an indicator light, a voltmeter, a buzzer, a battery compartment and a handle are arranged on one side of the control panel. According to the underground water level gauge suitable for various wellhead conditions, the limiting rod is pulled to move outwards until the limiting rod is separated from the interior of the limiting hole, fixing of the connecting ring is relieved, balance weight devices of different shapes can be selected and used according to the field wellhead conditions, and even if the water level gauge body is clamped in field measurement, the water level gauge body can be conveniently used. When the bearing threshold value of the connecting ring is exceeded, the water gauge main body can also be pulled out, the water gauge main body is a steel bendable ruler, water level measurement work can be continued by replacing a proper balancing weight on site, the field actual working efficiency is effectively improved, and the working cost is reduced.

The utility model discloses a water depth measuring device for a water conservancy project, which comprises a mounting table and a support frame positioned on the mounting table, a reel is arranged on the support frame, a motor connected with the reel is arranged on one side of the support frame, a measuring rope with scale marks is wound on the reel, and the scale marks are arranged on the measuring rope. A guide structure used for guiding a measuring rope is arranged below the reel, a gravity block is arranged at the tail end of the measuring rope, a pressure sensor used for detecting the gravity of the measuring rope is arranged on the guide structure, and a through hole allowing the measuring rope to pass through is formed in the mounting table. A floating platform movably connected with the bottom of the mounting table is arranged under the through hole, the floating platform is arranged around the measuring rope, and the floating platform is provided with a camera facing the scale marks. Compared with the prior art, the accuracy and stability of water level measurement are improved.

The invention provides a liquid level measuring device for liquid crystal glass substrate production and a measuring method, the liquid level measuring device comprises a support frame mounted on one side of a glass liquid container, the top of the glass liquid container is provided with a through hole communicated with the interior of the glass liquid container, and one end of the support frame extends to the upper part of the through hole. Through the design of the telescopic mechanism, the cleaning mechanism and the limiting mechanism, the cleaning mechanism extends into the molten glass container through the telescopic mechanism, so that the cleaning mechanism is in contact with the bottom of the outer side wall of the detection floating ball, and at the moment, the limiting mechanism limits the upward sliding of the measuring rod on the supporting frame; the bottom position of the outer side wall of the detection floating ball can be scraped and cleaned through the cleaning mechanism, so that the situation that in the long-term monitoring process of the glass liquid level, attachments are attached to the surface of the detection floating ball, the weight of the detection floating ball is changed, and the buoyancy of the detection floating ball is changed is effectively avoided; therefore, the detection precision of the glass liquid level is improved.

The utility model discloses a foldable storage water level marker post, which relates to the technical field of water level marker posts and comprises a first marker post and a base, the base is connected to the bottom end of the outer wall of the first marker post, a second marker post is arranged above the first marker post, and an auxiliary mechanism is arranged below the second marker post. When the water level marker post capable of being folded and stored is used, the water level marker post is folded and stored through the auxiliary mechanism, so that the overall length and occupied space are reduced, a worker can conveniently carry the water level marker post to move to different places for water level detection, and a reinforcing rod is inserted into river sludge through the supporting mechanism; and then the fixing effect between the base and a river channel is improved, the water level marker post is prevented from inclining when being impacted by water waves, the supporting stability of the water level marker post is improved, and therefore when the water level marker post is used, the effects of being convenient to fold and store and supporting and preventing inclination are achieved.

The utility model relates to the technical field of telescopic measuring rods, and discloses a telescopic measuring rod which comprises a first measuring rod, a second measuring rod slidably sleeved on the outer side of the first measuring rod, a third measuring rod slidably sleeved on the outer side of the second measuring rod, and a conical block fixedly connected with one end of the first measuring rod. Calibrated scales are arranged in the outer sides of the first measuring rod, the second measuring rod and the third measuring rod in a sliding mode, connecting plates are fixedly arranged on the two sides of the calibrated scales, and the multiple calibrated scales are installed in the outer sides of the first measuring rod, the second measuring rod and the third measuring rod through the connecting plates in a sliding mode during use. Then the second measuring rod is installed on the outer side of the first measuring rod in a sliding mode, meanwhile, the third measuring rod is installed on the outer side of the second measuring rod in a sliding mode, and when the water level is measured, the first measuring rod and the second measuring rod are fixed through the hand screwing bolt after being slid to proper positions, so that the water level is measured.

The utility model discloses a geotechnical investigation water level measuring device which comprises two sets of bottom plates, vertical plates are installed on the upper portions of the two sets of bottom plates, a wind-up roller is installed between the two sets of vertical plates through bearings, a thread rope is installed on the side wall of the wind-up roller in a winding mode, a lead weight is installed at one end of the thread rope, and the lead weight is installed on the other end of the thread rope. A tension sensor is embedded in the upper portion of the lead weight, a connecting rod is installed at one end of the tension sensor, a buoyancy ball is installed at one end of the connecting rod, an air inlet pipe and an air guide pipe penetrate through the outer wall of the buoyancy ball, a forward and reverse rotation motor is installed on the other side of the vertical plate on the right side, and the output end of the forward and reverse rotation motor is connected with the winding roller. The water level measuring device has the advantages that the installation pipe and the water storage tank are adopted, impurities on the surface of a thread rope can be cleaned in the winding work process through the installation pipe and the water storage tank, and a guarantee is brought to protection of the thread rope of the water level measuring device for geotechnical investigation.

The utility model discloses a hand-push type electrolytic cell two-level measuring device, which is used for measuring the lengths of residual aluminum liquid and electrolyte on a liquid level probe so as to obtain the aluminum level and electrolyte level data in an electrolytic cell, and comprises a cart body, a limiting groove of the liquid level probe is arranged on one side of a table board of the cart body, and the limiting groove is arranged on the table board of the cart body. A measuring scale is arranged on one side of the limiting groove; according to the utility model, the lengths of residual molten aluminum and electrolyte on the liquid level probe can be safely measured, and the data of the aluminum level and the electrolyte level in the electrolytic cell can be mastered.

The invention belongs to the technical field of liquid level measurement, and particularly relates to a liquid level measuring device capable of adjusting a measuring angle, the liquid level measuring device comprises a handle, a fixed seat, a turntable and a drill rod, one end of the handle is connected with the fixed seat, the turntable is rotatably arranged in the fixed seat, and the drill rod is arranged on one side of the turntable in an extending manner; a first through hole and a second through hole are formed in the side wall of the rotary disc in a penetrating mode, and a fixed angle b degrees is formed between the first through hole and the second through hole. A third through hole and a fourth through hole are formed in the side wall of the fixing base in a penetrating mode, a fixing angle c degrees is formed between the third through hole and the fourth through hole, and b is smaller than c. When the first through hole and the third through hole directly face each other, the second through hole and the fourth through hole are staggered, and a bolt assembly is inserted into the first through hole and the third through hole for fixation. When the second through hole and the fourth through hole are right opposite, the first through hole and the third through hole are staggered, and a plug pin assembly is inserted into the second through hole and the fourth through hole for fixing. The device can conveniently adjust and measure the liquid level of electrolyte and molten aluminum in the electrolytic cell at a small angle according to the actual condition of the electrolytic cell.

The utility model relates to the technical field of underground water sampling, in particular to an underground water level and quality sampler which comprises a supporting frame and a sampling mechanism, the supporting frame is arranged on the ground for supporting, and the sampling mechanism comprises a winding roller, a steel ruler belt, a reference rod, an installation assembly, a Beller pipe, a first one-way valve, a second one-way valve and a water level sensor. The winding roller is arranged on the supporting frame, one end of the steel ruler belt is wound on the winding roller, the other end of the steel ruler belt is fixedly connected with the installation assembly, the Beller pipe is arranged on the installation assembly and provided with a water inlet and a water outlet, the first one-way valve and the second one-way valve are arranged on the water inlet and the water outlet respectively, and the water level sensor is arranged on the water inlet. The reference rod is arranged on the support frame, and scale marks are arranged on the steel ruler belt, so that the technical problems that the sampling amount is small, the Beller tube ball valve is easy to leak and different aquifer secondary samples are inconvenient to distinguish when the water quality sampler in the prior art is actually used are solved.

The utility model relates to the technical field of water level monitoring for hydraulic engineering, in particular to a water level monitoring device for hydraulic engineering, which comprises a mounting seat, a water level monitoring mechanism and a water level sensor. The enclosure mechanism comprises an enclosure cylinder fixedly connected to the top end of the mounting base, the lower end of the surface of the enclosure cylinder is rotationally connected with a filter cylinder, and the lower end of the surface of the filter cylinder is rotationally connected to the top end of the mounting base; according to the device, the water level monitoring mechanism is enclosed through the enclosing cylinder and the filter cylinder, and compared with an existing mode that impurities are easily attached to the top end of a floating layer and a touch switch is easily touched by mistake, the mode prevents the impurities in water from being attached to the end of the floating plate ruler, so that the situation that the floating plate ruler touches the switch by mistake is avoided; large impurities are prevented from being attached to the surface of the filter cylinder through the multiple stop levers, the probability that the filter cylinder is blocked is reduced, and then the amount of water flowing into the surrounding cylinder is guaranteed.

The present invention relates to a portable tool for water level measuring (1), comprises a plurality of water level measuring sheets (2) and a staff (3). The plurality of water level measuring sheet (2) are secured on said staff (3), one above the other in concentric order being provided to measure depth of the water. The plurality of water level measuring sheets (2) are marked with measuring scale with respect to the height of each sheet of said water level measuring sheets (2) representing the depth of the water on the runway. One end of said staff (3) is fixed to the center of the said plurality of water level measuring sheets (2) being provided hold said plurality of water level measuring sheets (2).

The present application relates to the field of safety monitoring of waste landfill, and proposes a layered leachate water level monitoring method. The method first determines the position, thickness and number of the middle soil layer in the landfill through exploration drilling, and then embeds monitoring holes in the garbage pile under each soil layer to realize layering. After a week of observation to confirm the sealing and water level stability, the steel ruler water level meter is used to measure the leachate water level of each monitoring hole. The distance from the water level surface to the pipe opening is determined by taking the average value of three repeated measurements, and the water level elevation is obtained by combining the leveling measurement. By comparing the water level elevations measured twice, the water level change value is obtained, and the cumulative change value is obtained by comparing with the first measurement. The method can intuitively, quickly and accurately measure the leachate water level on each layer of soil, analyze the occurrence form and continuity of leachate, and evaluate the stability of the garbage pile.

The utility model relates to the technical field of underground water level observation, and discloses a hydrogeological exploration underground water level observation device which comprises a water level gauge body and a mounting frame connected to the outer wall of the water level gauge body. According to the water level gauge, the protective cover is arranged on the water level gauge body, the water level gauge body which is not used can be protected by the protective cover, the elastic cushion layer is arranged on the inner side of the protective cover, impact force generated when the protective cover is collided can be effectively absorbed, damage is effectively avoided, and the water level gauge body cannot be accidentally collided and damaged when being carried outdoors; the protective cover is rotationally connected, when the water level gauge body is used, opening and closing can be achieved only in a rotating mode, and operation is easy and practical.

The invention relates to a water level measuring device for hydraulic engineering detection, and belongs to the technical field of water level measurement, the water level measuring device comprises a fixed column and a water level gauge arranged on the fixed column, pointers are arranged on the fixed column and located on the two sides of the water level gauge respectively, and the pointers are arranged on the fixed column in a sliding mode and slide in the length direction of the fixed column. A marking pen is arranged on the pointer, the marking pen is perpendicular to the water level gauge, the annotation end of the marking pen abuts against the water level gauge, a floating piece is arranged on the pointer, and the floating piece is used for floating on the liquid level to drive the pointer to fluctuate along with the liquid level so that the highest position and the lowest position of the pointer can be recorded on the water level gauge. Reading middle readings at the highest position and the lowest position; the movable part is used for lifting the water level gauge after the marking pen carves a mark on the water level gauge, so that the lowest position of the carved mark is located above the water surface; the method has the effect of improving the accuracy of the measured data.

The invention discloses a method and a device for testing the gas content of a water conveying pipeline in different altitude areas, and relates to the technical field of water conservancy projects. The invention discloses a method and a device for testing the gas content of a water conveying pipeline in different altitude areas, and the device comprises a transparent organic glass pipeline, a temperature control water tank, an air compressor, a water pump, a pressure sensor, a temperature sensor and a high-precision stainless steel graduated scale, and the transparent organic glass pipeline is arranged in the middle of the device. According to the invention, the gas content of the water delivery pipeline system in different altitudes of areas can be tested by regulating the water temperature and pressure conditions, the gas content can still be tested by regulating the water temperature and other conditions for water delivery projects in areas with large temperature changes all the year round, acquisition and testing on the project site are not needed, and the test efficiency is greatly improved. Therefore, the device and the method have the advantages of high efficiency and convenience, and can provide a certain reference for water hammer and vaporization analysis of water delivery pipelines in different altitudes due to different gas contents, so that corresponding protective measures can be taken to ensure safe operation of a water delivery system.

The present invention discloses an independent high-level sensor connecting rod for a liquid cargo ship, comprising: a high-level sensor mounting plate, a connecting rod, a high-level sensor, and a pressing rod. A high-level sensor mounting plate is provided at the lower half of one side of the connecting rod. A high-level sensor is provided on one side of the high-level sensor mounting plate. A high-level sensor mounting plate is provided at the upper half of one side of the connecting rod. In the present invention, by rotating the high-level sensor mounting plate clockwise, the height of the high-level sensor will decrease, and by rotating the high-level sensor mounting plate counterclockwise, the high-level sensor will rise accordingly. Through the elastic pressing of the pressing rod and the auxiliary pressing of the positioning elastic piece, combined with the damping rotating shaft design of the high-level sensor mounting plate and the high-level sensor mounting plate itself, the position of the sensor is not easily changed, preventing the sensor from being impacted during the transportation of liquid materials and causing a change in the position of the sensor, ensuring the stability of the liquid level alarm system.

The utility model belongs to the technical field of paddy field irrigation, and discloses a fixed water level monitoring pointer which comprises a positioning rod, a plurality of positioning rings for indicating the water level are movably arranged on the positioning rod, and the positioning rings are arranged corresponding to scale marks arranged on the positioning rod. The positioning ring comprises a first semi-ring and a second semi-ring which are detachably connected, the first semi-ring and the second semi-ring are arranged around the positioning rod, and a plurality of locking buckles used for locking are arranged between the first semi-ring and the second semi-ring; the locking buckle comprises a locking plate rotationally connected to the first half ring, a fixing locking plate corresponding to the locking plate is arranged on the second half ring, and the locking plate and the fixing locking plate are arranged in a locking mode. The saline-alkali paddy field water level monitoring device is simple in structure and convenient to use, the overall design is optimized, the water level in the saline-alkali paddy field can be accurately monitored, the flexibility and the adjustability are high, the structural stability and the durability of the whole device are enhanced, recycling is conveniently achieved, and follow-up planting is not affected.

A fluid port assembly includes a tube configured to be positioned with a fluid container to provide access to a fluid contained in the fluid container. The tube includes at least one annular tube recess. The at least one annular tube recess forms a plurality of inner tube surfaces extending circumferentially within the tube. The assembly includes a plug configured to be positioned within the tube to releasably seal the fluid container and contain the fluid within the fluid container. The plug includes at least one annular plug protrusion, and the at least one annular plug protrusion forms a plurality of outer plug surfaces extending circumferentially around the plug. The plurality of inner tube surfaces of the tube engage the plurality of outer plug surfaces of the plug to seal the fluid container.

The invention discloses an unattended, automatic and uninterrupted organic intelligent farm system technology. One embodiment of the organic intelligent farm system does not use any chemical pesticide or chemical fertilizer. On the contrary, hydrogen water, bed soil and peat are used for planting organic plants in the water injection pot type cultivation bed. A plurality of cultivation beds can be horizontally or vertically connected and assembled and are subjected to load-bearing distribution and movement through the roller assemblies on the upper track and the lower track, so that an intelligent farm system which operates uninterruptedly is formed. The plants are cultivated according to the highest standard, and illumination, nutrients, moisture, temperature and acidity are optimized. The production history is automatically recorded, and remote management is supported.

The invention discloses a shield tunneling machine liquid level detection device which comprises a ruler, a camera and a cleaning device, the ruler is used for being installed in an air cushion bin of a shield tunneling machine and provided with scale marks, the camera is used for being installed in the air cushion bin of the shield tunneling machine and used for shooting the ruler, the cleaning device is arranged on the ruler, and the cleaning device is used for cleaning the air cushion bin of the shield tunneling machine. And the cleaning device is used for cleaning the scales of the ruler. During working, the liquid level in the air cushion bin of the shield tunneling machine is on the scale marks corresponding to the scale, scale data of the scale can be observed through the camera, so that the liquid level position is accurately obtained, the scale can be cleaned through the cleaning device, the scales on the scale can be kept clear, and camera shooting is facilitated.

The invention belongs to the field of image processing, and provides a ship water gauge dynamic calibration recognition system and method based on multi-modal data fusion. The method comprises the following steps: collecting visual image data of a water gauge scale area; a virtual space model of the water gauge scale area is constructed based on the visual image data, and the virtual space model is optimized in combination with preset physical constraints; performing dynamic semantic segmentation on the virtual space model, dividing a water gauge scale area and an interferent, and calculating a first water line of the target ship in real time based on the water gauge scale area; acquiring real-time measurement data of the target ship and the water body area where the target ship is located; performing multi-modal fusion on the real-time measurement data through a graph neural network, constructing a dynamic calibration model based on a fusion result, and predicting a real-time position relationship between the target ship and the water body region; and dynamically calibrating the first water line based on the real-time position relationship to obtain a second water line. Errors of visual identification results are dynamically corrected, and measurement accuracy and measurement efficiency are improved.

The utility model relates to the technical field of low water flow testing, in particular to an auxiliary measuring tool and a measuring device. The auxiliary measuring tool comprises a depth measuring rod, an extension rod and a connector, the depth measuring rod comprises a first end and a second end which are oppositely arranged in the length direction, scales are arranged on the outer side of the depth measuring rod, the extension rod comprises a third end and a fourth end which are oppositely arranged in the length direction, the third end is arranged on the second end, and the fourth end is arranged on the outer side of the extension rod. The connector is arranged at the fourth end part and is used for mounting the positioner; by means of the arrangement, when the auxiliary measuring tool is used, the positioner can be placed at a high point, the positioner is closer to an open high altitude, the influence of the surrounding environment on signals is reduced, signal interference caused by a human body is also reduced, in addition, when the depth measuring rod is used, the positioner can be located over the depth measuring rod, and therefore the positioning accuracy is improved. Therefore, the positioning is more accurate.

The utility model discloses a hydrological monitoring scale convenient to fix, which comprises a mounting connector, and a connecting and fixing component is arranged on the outer wall of the mounting connector. The connecting and fixing assembly comprises a first adjusting block, a second adjusting block, a third adjusting block and a fourth adjusting block which are arranged on the outer wall of the mounting connecting body, clamping grooves are formed in the inner walls of the first adjusting block, the second adjusting block, the third adjusting block and the fourth adjusting block, and a clamping block is fixedly connected to the outer wall of the supporting pad; supporting pads are slidably connected to the inner walls of the first adjusting block, the second adjusting block, the third adjusting block and the fourth adjusting block, the inner walls of the supporting pads are attached to the outer wall of the mounting connecting body, and fixing bolts are connected to one ends of the first adjusting block, the third adjusting block, the second adjusting block and the fourth adjusting block; and a water gauge is arranged between the second adjusting block and the fourth adjusting block. The device can realize quick installation and fixation of the water gauge, is suitable for stable connection of the water gauge and a circular or square installation connector, and improves the practicability.

The utility model discloses a water level detection device for water conservancy construction, which relates to the field of water level detection devices, and comprises a display instrument, a flexible rule and a probe, a support column is fixedly arranged on the outer wall of the display instrument, a telescopic rod corresponding to the support column is fixedly arranged on the outer wall of the display instrument, and the end part of the support column is fixedly connected with the end part of the telescopic rod; through the arrangement of the idler wheel, the supporting column, the buffer column and the elastic piece, collision between the probe and the inner wall of the detection opening in the falling process is buffered, meanwhile, the idler wheel is arranged, the collision force to the probe is further reduced, meanwhile, the flexible rule is guided through the idler wheel, and therefore the probe can be conveniently detected. The water level detection device has the advantages that the water level detection device is simple in structure, a detector is prevented from guiding the flexible rule, an operator does not need to excessively limit the probe of the flexible rule through the arrangement, the use efficiency of the water level detection device is further reduced, and direct collision between the probe and the inner wall of the detection opening is avoided through the arrangement of the protection frame.

The utility model discloses a water level marker post for water conservancy and hydropower. The water level marker post comprises a post barrel, a connecting mechanism used for assisting in displaying the water level is arranged on the outer side of the rod barrel, a mounting assembly for limiting and fixing is arranged at the bottom of the rod barrel, and an extending mechanism used for extending and adjusting is arranged in the rod barrel; the connecting mechanism comprises limiting assemblies and an auxiliary assembly, the limiting assemblies are arranged on the surface and the back face of the rod barrel, and the auxiliary assembly is arranged on the outer side of the rod barrel; through the arrangement of the extension mechanism, the advantage of extension adjustment is achieved, the water level can be clearly indicated and displayed in a buoyancy mode, meanwhile, water levels of different depths can be further adapted according to the extending height, floating operation is achieved through the air bag, and the limiting plate and the indicating pointer are used for indicating the normal water level, so that the water level can be accurately adjusted. The hollow rod, the water level sensor, the control rod and the warning lamp ring are matched to achieve the water level detection and warning effects.

The present invention discloses a fuel measurement method for a heterogeneous fuel tank. The upper ends of the heterogeneous fuel tanks are connected, and according to the unconnected parts at the lower ends of the heterogeneous fuel tanks, the heterogeneous fuel tanks are sequentially divided into several measurement units; several fuel quantity sensors are sequentially connected from top to bottom in the measurement unit. The fuel quantity sensors are divided into three sections from top to bottom: upper non-measurable, normal oil immersion, and lower non-measurable. Each fuel quantity sensor is provided with a fuel mass characteristic database corresponding to the oil level height and the fuel quantity. The fuel quantity corresponding to the oil level height of the fuel quantity sensors in each measurement unit is obtained, and the fuel quantities of all measurement units are summed to obtain the fuel quantity of the heterogeneous fuel tank. By splitting the heterogeneous fuel tank into several measurement units, the present invention can quickly and accurately obtain the fuel quantity of the entire heterogeneous fuel tank through the fuel quantity measurement of each measurement unit, effectively improving the test efficiency. Moreover, the measurement error of the fuel quantity in the fuel tank is relatively small compared with the prior art, meeting the requirements of practical use and having good practicability.