63 results about "Level sensor" patented technology

A capacitive level sensor (10) for measuring the level (H1, H2; H1', ​​H2') of a medium (16) in a container (14), comprising an electrode unit (12) comprising a strip-shaped measuring electrode (22), a strip-shaped counter electrode (24), and a strip-shaped shielding electrode (26, 28, 40), wherein the shielding electrode (26, 28, 40) at least partially surrounds the measuring electrode (22), and a signal processing arrangement (46), characterized in that a first AC voltage source (60) with a predetermined frequency and amplitude is provided, to which the shielding electrode (26, 28, 40) is connected, such that a shielding capacitor (54, 56) formed between the shielding electrode (26, 28, 40) and the measuring electrode (22) 58) has a shielding capacitance that is proportional to the length of the shielding electrode (26, 28, 40), that a second AC voltage source (66) of the same frequency and with a predetermined second amplitude is present,wherein the second amplitude is out of phase with the first amplitude to which the counter-electrode (24) is connected, such that a measuring capacitor (52) formed between the counter-electrode (24) and the measuring electrode (22) has a measuring capacitance that is proportional to the fill level (H1, H2; H1', ​​H2'), that the measuring capacitor (52) and the shielding capacitor (54, 56, 58) are connected to form a capacitive voltage divider, and that the divided measuring electrode voltage (72) applied to the measuring electrode (22) is used to determine the fill level (H1, H2; H1', ​​H2') in the signal processing arrangement (46).

The utility model discloses a generator stator cooling water dissolved hydrogen measurement water sample backwater device which comprises a middle water storage tank, the top of the middle water storage tank is communicated with a monitoring device through a water inlet pipeline, and the lower end of the middle water storage tank is communicated with a generator stator cooling water tank through a double-pump system; a low-liquid-level sensor, a high-liquid-level sensor and a high-liquid-level sensor are arranged on one side in the middle water storage tank and used for monitoring the liquid level of the middle water storage tank; the device relates to the technical field of measurement water sample recovery, and is simple in structure, easy in function and high in reliability, meanwhile, the measured water sample is directly recovered to a generator stator cooling water tank, the water quality of generator stator cooling water is not affected, leakage and leakage are avoided, water resources are saved, and the device is suitable for popularization and application. Meanwhile, safe operation of generator stator cooling water is guaranteed, and different generator stator cooling water tank forms on site are met.

The invention relates to a machine (1) for manufacturing a concrete voussoir comprising at least one mold (20) having an upper opening for pouring fluid concrete, a filling hopper (10) placed above said upper opening for pouring a determined quantity of concrete, said hopper being provided with a lower pouring orifice and a movable shut-off cap (12) between at least a first closed position and a second open position, and means for vibrating the fluid concrete in the mold (20), characterized in that the hopper (10) comprises a means for measuring the presence of concrete by mass or volume and the machine (1) comprises a level sensor (30) measuring in real time the filling height of fluid concrete poured into the mold (20),said level sensor (30) being connected to the measuring means of the hopper (10) via an automatic control unit (40) to stop the discharge of fluid concrete by moving the hood (12) from the second open position to the first closed position once the fluid concrete poured into the mold (20) has reached a certain predetermined height. Figure for the abbreviation: Fig. 2,

This invention relates to a control method for an overflow wash water recovery system in a plastic electroplating chromium roughening wash tank. The method includes: (1) powering on the system; (2) detecting data from a first high / low level sensor; (3) detecting data from a third and second pressure gauge; (4) detecting data from the first pressure gauge; (5) detecting data from the second high / low level sensor; (6) detecting pressure data from the reverse osmosis unit; (7) operating the reverse osmosis recovery system; (8) detecting data from a fourth high / low level sensor; (9) operating the concentrate recovery system; (10) detecting data from the fourth high / low level sensor; and (11) storing the recycled water produced by the system in a recycled water collection tank.

An explosive delivery system for dipping and loading a blasthole to determine water depth and explosive depth in blasthole. The explosive delivery system includes a vehicle with a first reservoir configured to store an explosive and a delivery apparatus reel mounted to the vehicle with a delivery apparatus stored on the delivery apparatus reel. The delivery apparatus having a central bore that extends a length of the delivery apparatus from a proximal end to a distal end of the delivery apparatus and an outlet disposed at the distal end. The explosive delivery apparatus is configured to deliver the explosive out of the outlet of the delivery apparatus. The delivery apparatus includes a plurality of level sensors disposed on an outer surface of the delivery apparatus and that are dispersed along the delivery apparatus. Each level sensor is configured to determine if it is disposed in water, air, or explosive.

The invention discloses an online continuous screening and adding system and device for circulating materials of a high-alkali coal fluidized bed boiler, and belongs to the technical field of material circulation and control of fluidized bed boilers. The system comprises a device structure, a detection module, a control module and an alarm module, the device structure is sequentially connected with a slag cooler, a chain bucket machine, a bucket elevator, a screening system, a circulating material bin, a pneumatic conveying device and a slag bin through a material conveying path, and the pneumatic conveying device is connected to bed material adding ports with different heights of a boiler through a plurality of branch pipes; the detection module comprises a bed temperature sensor, a material level sensor, a flow sensor and a screening efficiency detection unit; the control module is electrically connected with the detection module, the pneumatic conveying device and the screening system, and the alarm module is used for abnormal alarm. According to the high-alkali coal fluidized bed boiler, whole-process online continuous treatment of circulating materials is achieved, accurate control and self-adaptive adjustment can be achieved according to bed temperature distribution in the boiler and coal quality changes, and the operation stability, the combustion efficiency and the intelligent level of the high-alkali coal fluidized bed boiler are improved.

The systems and methods taught herein provide an eluent level sensor that enables real-time monitoring of the level of an eluent or waste liquid in a container placed on the eluent level sensor. The eluent level sensor alerts a user when the eluent level is below or above a selectable threshold suitable for a particular content of the container. For example, when the eluent level drops below a selectable threshold of a container containing a new eluent or eluent precursor, the eluent level sensor may issue an alarm to the user. In an eluent delivery system, as an alert is issued to the user before the container is emptied, the user is helped to save substantial analysis time and effort. By giving a notification (e.g., visual notification) of the eluent level to the user, the eluent level sensor may avoid damage to the instrument and improve user experience.

An overflow prevention control method for a dispenser, a dispenser, and a storage medium. The dispenser is arranged with an ingredient outlet and a water tank, and the water tank is arranged with a level sensor. The overflow prevention control method includes: detecting, via the level sensor, a first liquid level height of the water tank; and enabling a target filling mode and a target overflow protection according to the first liquid level height; where the target filling mode is at least one of an automatic filling mode or a manual filling mode, and the target overflow protection is at least one of an automatic filling overflow protection or a manual filling overflow protection.

This invention provides a highly adaptable bottom-reaching support for an underwater acoustic testing device, relating to the technical field of underwater acoustic testing devices. The highly adaptable bottom-reaching support includes an underwater acoustic testing device body. Multiple detection sensors are fixedly connected to the outer side of the underwater acoustic testing device body. Multiple level sensors for balance measurement are also fixedly connected to the outer side of the underwater acoustic testing device body. A mounting frame is fixedly connected to the bottom of the underwater acoustic testing device body. This highly adaptable bottom-reaching support allows a first rack to push a support block into depressions in the ground, thereby further maintaining stability. This ensures that the support for the underwater acoustic testing device body can adapt to different environments, and the level sensors can further assist in ensuring the overall stability of the device, adapting to various underwater environments.

The utility model belongs to the technical field of ash conveying equipment, and provides an incinerator fire grate slag conveying device with an automatic monitoring function, which comprises a pneumatic conveying assembly, a plurality of feeding assemblies, a plurality of connecting assemblies, a plurality of pneumatic ash discharging valves, a plurality of ash discharging hoppers and a plurality of material level sensors, the top of the conveying pipe is connected with a connecting piece; the feeding assembly is connected with the pneumatic cinder valve through the connecting assembly; according to the pneumatic cindervalve, the first sealing gasket in the first groove, the second sealing gasket in the second groove, the sealing ring in the limiting groove and the threaded connection structure are matched with one another, so that multiple sealing can be carried out on the pneumatic cindervalve, the feeding pipe and the lower ash hopper, and the pneumatic cindervalve, the feeding pipe and the lower ash hopper can be rapidly connected together in a high-sealing mode; and operation is convenient and fast, the assembling efficiency of the device is improved, and the ash leakage condition cannot occur in the ash conveying process.

The invention discloses an intelligent air pressure sample supply and double-cup uniform mixing device suitable for colloidal suspension, which comprises a standard liquid storage unit, a calibration reaction unit, an air pressure sample supply unit and an emptying cleaning unit, and a liquid supply tank, a calibration cup and a waste liquid collection barrel are all provided with liquid level sensors. The standard liquid storage unit comprises a liquid supply tank and a first stirring mechanism; the calibration reaction unit comprises a calibration cup, a second stirring mechanism and a four-way pipeline joint with a liquid inlet and a liquid outlet; the air compression sample supply unit comprises a clean air source air pump, an exhaust electromagnetic valve and a sample supply pipeline with a one-way valve; the emptying and cleaning unit comprises an emptying pipeline, a waste liquid collecting barrel, a cleaning electromagnetic valve, a cleaning peristaltic pump and a cleaning pipeline. Double-cup stirring is adopted, sedimentation layering and concentration gradient are avoided, the liquid supply tank and the calibration cup respectively adopt a magnetic coupling turbine and a magnetic stirring mechanism to realize low-energy-consumption uniform mixing, multiple functions are integrated, the pain point in the prior art is solved, and the sample supply requirements in multiple fields are met.

The invention relates to the technical field of water pollution detection, in particular to a water heavy metal detection device for irrigation water supervision, which comprises a buoy, the lower end of the buoy is gradually shrunk into a conical part, a circular partition plate is arranged in the buoy and divides a cavity in the buoy into a detection cavity and a water return cavity, and a water inlet pipe is arranged at the bottom of the conical part. A plurality of water outlets are formed in the circular partition plate, a liquid level sensor, a water quality detection piece and a control valve are arranged in the detection cavity, the control valve comprises a water drainage valve and a water inlet valve, a first water pumping pipe is arranged at the top of the floating barrel, and a second water pumping pipe communicated with the water return cavity is arranged beside the floating barrel. The water is directly pumped out of the detection cavity through the first water pumping pipe and conveyed to the farmland, an intermediate transfer link is omitted, secondary pollution of the water and waste of water resources are avoided, the water exceeding the standard is drained into the water return cavity through the drainage valve and then pumped back to the original water area through the second water pumping pipe, isolated backflow of the substandard water is achieved, and the substandard water is prevented from polluting soil or other water.

The invention relates to an arrangement and methods to control volume of fluids in a well system having a riser (7) extending from a well to a rig. The riser (7) has an increased diameter section (1) situated below the upper end of the riser (7) and above any slip joint (12) in the riser. The arrangement further comprises a sensor (5) to continuously measure the position of the slip joint (12). the increased diameter section (1) is coupled to an outlet (19) that is in fluid communication with a fluid return system (18), and the arrangement further comprises a return pump (2) coupled between the outlet (19) and the mud return system (18). The outlet (19) is arranged at a lower level than the mud return system (18). Level sensors (22) measure the level of liquid within the increased diameter section (1).

This invention relates to the field of fluid transport control technology and discloses a water pump anti-siphon device. The device includes an inverted U-shaped main pipeline, with a through-wall pump installed at the input end of the pipeline. A multi-functional valve is installed on the pipeline, including a vacuum tank. The vacuum tank's bottom sealing flange is fixedly installed on the top of the inverted U-shaped main pipeline, and a main cavity is provided inside the vacuum tank. This anti-siphon device eliminates the need for a high-power motor and large-size impeller for the through-wall pump under low head and high flow conditions, reducing equipment procurement and operating costs. It employs an oil-lubricated rotary vane vacuum pump to create a vacuum, and automatically detects the liquid level and controls the vacuum pump's start and stop using a level sensor and float switch. This allows the medium to smoothly pass over the highest point of the inverted U-shaped pipeline, thus enabling a small-power pump to meet start-up and normal operation requirements, avoiding energy waste and equipment redundancy caused by using a large motor for a small load.

The present invention relates to a filling device comprising at least one filling valve (1) for filling a container (3) with a valve cone (5) and a valve seat (7), wherein the valve cone (5) is axially traversed by a gas channel (51) and a radar level measuring device (100) arranged on the filling valve (1), wherein the at least one component (9) of the radar level measuring device (100) is formed integrally with the valve cone (5).

The invention discloses an insulating oil non-fault leakage simulation detection system and method, and belongs to the technical field of electrical equipment insulating oil detection. The problem that in the prior art, a system capable of systematically simulating the non-fault leakage behavior of the insulating oil is lacked is solved. The system comprises an insulating oil cavity, a heater, a humidifier, a liquid level sensor, a temperature, humidity and pressure sensor, a replaceable leakage assembly, a gasification device and gas analysis equipment, the real-time monitoring and analysis of the gas evolution behavior in the insulating oil leakage process are realized by simulating three typical leakage behaviors of a thermal driving type, a sealing performance degradation type and a structure defect type and combining the regulation and control of multiple parameters such as temperature, humidity and pressure; according to the method, faulty and non-faulty gas changes can be distinguished, experimental data support is provided for false alarm recognition and algorithm optimization in DGA diagnosis, and the method has high engineering practicability and scientific research value.

A level sensor is an optical sensor that measures the height of a substrate surface. Current level sensors have a relatively limited range, which depends on the period or pitch of gratings used in these sensors. An enhanced level sensor with high resolution and enhanced range is described. In an embodiment, the enhanced level sensor incorporates an interferometric measurement scheme, and includes at least three detectors, each measuring a different part of the period of the imaged grating; dedicated dipole illumination, which ensures that an imaged grating (at a detection grating) comprises a pure sine wave for all wavelengths of radiation; and interferometry software, which determines phases of the reflected radiation at each moment in time based on the output signals from the at least three detectors, determines the height based on the phases, and uses phase unwrapping algorithms to accommodate phase jumps in reflected radiation received from the surface.

1. Name of the product in this design: Liquid level sensor. 2. Purpose of this design: For liquid level detection. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model discloses a multifunctional water leakage intelligent water cut-off direct water dispenser which comprises a shell, the shell is provided with an installation cavity and a water leakage storage cavity which are communicated with each other, the water leakage storage cavity is located below the installation cavity, the water leakage storage cavity is provided with two water leakage level sensors, and the two water leakage level sensors are arranged up and down; the two leakage water level sensors are respectively a high water level sensor and a low water level sensor; the water dispenser water path is provided with a raw water inlet pipe, the raw water inlet pipe is provided with a water leakage switch, and the water leakage switch is used for controlling the connection and disconnection of the raw water inlet pipe; the water leakage switch is configured to be turned off when the time interval of the signals sent by the two water leakage water level sensors is smaller than a specified value. According to the scheme, the water cost can be prevented from being greatly increased, leaked water can be prevented from overflowing to a great extent, and indoor attractiveness and neatness are guaranteed.

The utility model relates to the technical field of roof drainage, and discloses a roof siphon drainage fault electric switching valve which comprises a water collecting hopper and an electric actuator, a collecting groove is formed in the inner surface of the water collecting hopper, a drainage pipe is arranged on one side of the water collecting hopper, and a connecting pipe is arranged at the other end, away from the collecting groove, of the drainage pipe through a bolt. An electric valve body is arranged on the outer surface of the connecting pipe, a valve rod and a valve cover are arranged on the outer surface of the electric valve body, and a power line and a first connecting line are arranged on the outer surface of the electric actuator. According to the roof siphon drainage fault electric switching valve, through the integrated structure of the liquid level sensor, the sensor shell and the probe, the fault occurrence probability is reduced, the probe can rapidly and accurately sense the water level change, and through the arrangement of the omega-shaped structure formed by the limiting block, the mounting cover and the connecting block, the first positioning bolt and the second positioning bolt, the water level change can be rapidly and accurately sensed; the liquid level sensor can be stably installed, the water level can be continuously and accurately monitored, and the water level is prevented from being too high or too low.

This invention discloses a fully automatic pH adjustment device for a pit with feedback, comprising: a pit, wherein a level sensor for detecting water level and a pH detector for detecting pH value are installed inside the pit; a mixing mechanism for preparing a pH adjuster and feeding it into the pit; and a homogenizing mechanism distributed on the bottom wall of the pit, wherein a connecting pipe is provided at the output end of the mixing mechanism and the connecting pipe is connected to the homogenizing mechanism. This invention, based on the measurement results of the pH detector and level sensor, calculates the amount of quicklime to be added according to a formula. After clean water is supplied through the inlet pipe, the quicklime feeding screw mixes inside the mixing mechanism. During the mixing process, the quicklime slurries, and is then transported to the pit through the connecting pipe and rapidly stirred by the homogenizing mechanism. This enables effective control of the pit's pH, reduces the wear and tear on the granulation equipment caused by acidic wastewater, and alleviates the labor intensity of workers.

According to the magnetic steel assembling hydraulic device, the assembling efficiency is improved, the labor intensity is reduced, and industrial accidents are prevented. According to the technical scheme, a plunger pump set is adopted in a hydraulic system, and it is guaranteed that the oil cylinder assembling speed is high, and thrust is large; the hydraulic system is provided with a stacked hydraulic control one-way valve and a stacked one-way throttle valve, it is guaranteed that the oil cylinder can be reliably locked at any position of the whole stroke when magnetic steel is pressed, and the operation speed of the oil cylinder can be adjusted. An air cooling cooler is installed on an oil return way of the hydraulic system to cool hydraulic oil of the system, and a temperature and liquid level sensor is installed on the hydraulic system to guarantee that the oil temperature and the oil level of the hydraulic system are monitored in real time. The hydraulic system is provided with an overflow valve and a pressure sensor, so that the magnetic steel is prevented from being crushed due to overhigh pressure in the magnetic steel pressing process; the use environment is located in the north, a hydraulic system is provided with a heater, hydraulic oil is heated in winter, and the situation that a plunger pump cannot suck oil due to low temperature and high viscosity of the hydraulic oil is prevented; the hydraulic system is provided with an oil suction filter and an oil return filter to ensure that the cleanliness of the hydraulic system reaches the standard; the hydraulic hose connected with the oil cylinder is an ultra-flexible pipe, the bending radius is small, the service life is long, and the pressure-resistant grade is high. The press-fitting support is a high-strength structural steel welding part and is fixed to a workpiece. The oil cylinder is inversely installed on the press-fitting support, and a piston rod of the oil cylinder moves up and down to press-fit the magnetic steel.

Disclosed is a sensor, comprising: at least one phase modulating projection grating element being configured to scatter measurement radiation and impose a phase modulation onto the resultant scattered radiation; at least one detector being configured to receive radiation derived from reflected radiation comprising said scattered radiation subsequent to reflection from a surface to be measured; and at least one processor unit being operable to determine a measurement signal comprising a parameter of said radiation received at the detector, and determine a height of said surface from a phase of said measurement signal.

The invention discloses a continuous-operation multi-stage mining dry-type orifice dust removal system and a control method, and belongs to the technical field of mine drilling construction dust removal. The system comprises a parallel cyclone dust collector group, an electric butterfly valve group, a material level detection system and a control system, the parallel cyclone dust collector group comprises two cyclone dust collectors with the same structure, the two cyclone dust collectors are arranged in the main air duct between the bag-type dust collector and the drilling sealing device in parallel, and each cyclone dust collector is provided with an air inlet, an air outlet and a bottom discharge port; the electric butterfly valve set comprises four electric butterfly valves which are installed on an air inlet pipeline and an air outlet pipeline respectively and used for air path switching. The material level detection system comprises a material level sensor which is used for monitoring the dust height in real time; and the control system realizes automatic switching and unloading according to the signal. The control method comprises the steps of system starting, material level monitoring, gas circuit switching, discharging resetting, circulating operation and fault protection. According to the invention, continuous dust removal operation is realized, and the efficiency and the safety are improved.

A level sensor includes a housing and at least one sensor that is designed to measure a pressure of a medium and that is electrically connected to evaluation electronics. The level sensor also includes a connection cable that is guided through the housing in a sealing section. At least one crimp sleeve is pressed around the connection cable in the sealing section inside the housing. A pressing element is fastened in the sealing section of the housing in such a way that the crimp sleeve is pressed against a sealing surface of the sealing section. The housing or at least the sealing section of the housing is at least partially filled with a first casting, and the casting encloses the connection cable, at least in sections.

The invention relates to a device for segmenting a full-page resistor disc of an oil level sensor into pieces. The device comprises a rack, and the rack is sequentially provided with a feeding structure, a white edge removing structure, a strip-forming segmenting structure, a piece-forming segmenting structure, a deburring structure and a discharging structure from left to right. The feeding structure is used for feeding unprocessed full-page resistor discs; the white edge removing structure is used for removing white edges on the two sides of the whole resistor disc; the strip-forming segmentation structure is used for segmenting the whole resistor disc after the white edge is removed into three resistor discs; the sheet segmentation structure is used for segmenting each resistor sheet into single resistor sheets; the deburring structure is used for removing burrs on the edge of the single resistor disc; the discharging structure is used for discharging the machined resistor discs. The device can effectively solve the problems of high operation difficulty, high labor intensity and high labor cost due to the fact that white edge removal, strip segmentation of the whole resistor disc, strip segmentation of the whole resistor disc and deburring of the single resistor disc of an existing oil level sensor are achieved manually.

A sensor device for detecting a fill state of a reservoir of hygiene consumables, comprising: a set of sensors arranged along a depletion direction of the reservoir, each sensor configured to detect a presence of a hygiene consumable in a respective proximity thereof; a processing section coupled to the set of sensors for obtaining a presence detection from each sensor of the set of sensors; and a housing comprising at least an elongate housing rod housing the set of sensors, where the housing rod comprises a front side that faces the reservoir of hygiene consumables in operation, and where the front side comprises a recess toward one of the set of sensors.

The invention relates to a level measurement arrangement (10) and a filling system (50). The level measurement arrangement (10) includes a radar level sensor (26). The radar level sensor (26) comprises at least one transmitter and receiver unit for transmitting and receiving an electromagnetic signal and an electrically conductive probe (28) for guiding the electromagnetic signal. The probe (28) is arranged along a plurality of containers (12) and parallel to a predefinable level threshold (32) of the fill levels of a product (18) to be determined in the containers (12).

1. Name of the product in this design: Radar liquid level sensor. 2. Application of this design: for measuring liquid level in scenarios such as sewers, rivers, and lakes. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.