188 results about "Level sensor" patented technology

A sensor device for measuring the level of material in a container, including: a shell, and at least one contactless level sensor housed inside the shell, the shell including a measurement window enabling the passage of a detection signal emitted by the sensor and the passage of a reflected detection signal, after reflection against the free surface of the material inside the container. The sensor device further includes a fastener secured to the shell, enabling the removable fastening of the sensor device outside the container, on a connector secured to the container, with the measurement window of the shell positioned opposite a corresponding opening formed in the container.

The utility model provides a skid-mounted mixing system and belongs to the technical field of skid-mounted mixing. Comprising a box body; the stock bin is arranged in the box body; the grading part is arranged on the stock bin, and the grading part comprises a high-level material level sensor which is arranged at the top of the stock bin and used for preventing excessive filling of materials. According to the utility model, the grading part is arranged, and high, middle and low three-level material level monitoring points are arranged in the stock bin, so that the real-time monitoring of the material level in the stock bin is realized, the overflow caused by excessive filling of the material can be effectively prevented, the continuity of material supply is ensured, the interruption of production due to material shortage is avoided, and when the material level drops to an early warning point, the production efficiency is improved. The system can trigger a material supplementing mechanism in time to prevent a production line from being shut down due to material exhaustion, so that the continuity and the stability of a production process are maintained.

The invention discloses a roof separation online monitoring method, and relates to the technical field of roof separation monitoring. Comprising the following steps that a plurality of sensors are arranged at different layers of a mine roof, different types of sensor arrangement schemes are selected according to geological conditions so as to comprehensively collect rock stratum change data, wide coverage and comprehensive data collection are ensured, and through multi-layer sensor arrangement, dynamic sampling frequency adjustment and multi-dimensional data fusion analysis, the rock stratum change data can be obtained. The system improves the accuracy of roof separation monitoring, realizes self-adaptive early warning for different geological environments in combination with an environment feature model, and reduces the risk of false alarm and missing alarm. The system can dynamically adjust the sampling frequency, capture the key change process, and continuously optimize the early warning parameters to avoid the problem of'monitoring blind areas' or strategy outdated, thereby improving the real-time performance, flexibility and stability of mine monitoring, and remarkably improving the mine safety management efficiency and intelligent level.

The invention relates to the technical field of civil engineering, and discloses a foundation pit simulation analysis method based on a finite element method. Comprising the following steps: S1, collecting foundation pit engineering data and environment information: collecting and storing real-time monitoring data of geological conditions, soil mechanical properties, underground water level, climate change and settlement of foundation pit engineering by using geological exploration equipment, an environment monitoring sensor, climate monitoring equipment, an underground water level sensor and a settlement monitoring sensor; and S2, establishing a multi-physics field coupling model of the foundation pit: according to the foundation pit engineering data collected in the step S1, providing a foundation pit simulation analysis system based on the finite element method, foundation pit simulation analysis equipment based on the finite element method and a computer readable storage medium. According to the method, by combining the finite element method, the multi-physics field coupling model and deep learning optimization, efficient and accurate foundation pit stability analysis is achieved, optimization suggestions are automatically generated, and the calculation efficiency, accuracy and real-time dynamic adjustment capacity are remarkably improved.

A method for determining the fill level of a substance (104) in a container (102) using a level sensor (100) is described, wherein the level sensor (100) is coupled to a status sensor (120) for the substance, comprising the steps: Determining an environmental condition of the fill material (104) using the state sensor (120); Comparing the environmental conditions of the fill material (104) with a first reference state (310) and / or a second reference state (320) to determine the environmental conditions; Determining the fill level using the fill level sensor (100), based on a respective operating mode of the fill level sensor (100) which is assigned to the respective reference state (310, 320).

A portable device that can be temporarily attached to a building's hose spigot or plumbing angle stop valves and the like, for the purposes of: (i) providing an uninterrupted supply of cool drinking water for pets; and (ii) ongoing health monitoring via alerts of pet hydration habits. In the preferred embodiment, the device claimed herein consists of the following as illustrated in FIGS. 1, 2, 3 and 4. Housing features an internal chamber containing cooling unit, tank, control unit, inlet pipe, outlet pipe and battery. User connects anterior end of hose onto inlet pipe via inlet coupler and posterior end of hose onto a building's plumbing system using spigot coupler or angle stop valve coupler. Power cord is then connected to a wall outlet. User adjusts level sensor or float to desired depth within bowl, which establishes the maximum desired water fill level. Spigot or angle stop valve is opened to pressurize device and fill tank. The device is powered on via control pad and appropriate operational modes of control unit are selected by user. Water flowing into device through inlet pipe enters and fills tank. Cooling unit chills water in tank; water in bowl is also chilled via cooling element. Control unit opens electric valve, which allows chilled water to flow from tank to bowl via outlet pipe. Water flow into bowl ceases automatically when level sensor detects that preset fill level has been reached. When an animal down draws water in bowl below preset height of level sensor, control unit opens electric valve. Chilled water enters bowl until it contacts level sensor, thereby signaling control unit to close electric valve. User may also use control pad to activate lights for safety or decorative purposes. In an alternate embodiment, low water level in bowl lowers float and float arm, thereby opening float valve so that chilled water can flow from tank and into bowl via outlet pipe. When water lifts float to maximum fill level of bowl, float valve closes and terminates water flow. When an animal draws water below preset level, bowl is replenished automatically. In either embodiment, a constant supply of water with a temperature below ambient temperature is automatically maintained. User can use a smart device to set operational mode of control unit and monitor hydration frequency and water temperature via WIFI connection. Device can use solar panels and rechargeable batteries for primary or emergency backup power.

To provide a machine tool having a function for assisting replenishing work of a coolant liquid concentrate or water for dilution.SOLUTION: The machine tool comprises: a device for various machining operations, which is for executing prescribed machining on a workpiece by a tool; a coolant device that repeatedly feeds a used coolant stored in a coolant tank by a coolant pump; and a control device that controls driving of the device for various machining operations and the coolant device. The coolant tank is provided with a level sensor that measures a coolant level indicating the liquid surface height of the coolant and a density sensor that measures the concentration of a coolant liquid concentrate in the coolant. The control device calculates replenishing amounts of a coolant liquid concentrate and water necessary for replenishment and days necessary for replenishment on the basis of the measurement values measured by the level sensor and the concentration sensor, and outputs the results as replenishment information to a notification device for notifying an operator of the information.SELECTED DRAWING: Figure 5

The application discloses an oil level sensor for oil tank oil quantity detection, which comprises a sealing plate, a mounting table integrally formed on the upper surface of the sealing plate, a liquid level sensor and a float oil quantity sensor fixed on the lower surface of the mounting table, a connecting rod rotatably arranged on the lower surface of the float oil quantity sensor, a hollow float ball fixed on the lower end of the connecting rod, a positioning pipe arranged in the hollow float ball and fixed on the inside of the positioning pipe, a limiting hole arranged in the center of the hollow float ball, trumpet mouths arranged on both ends of the limiting hole, a limiting rod arranged in the limiting hole, a connecting rod fixed on the upper end of the limiting rod and a limiting plate arranged on the lower end of the connecting rod. The application improves the structure of the float in the existing oil level sensor, can make the float have a larger measuring range, improve the measuring precision of the oil level, can limit the measuring path of the float, and can keep the oil level sensor for a long time of accurate measurement without frequent maintenance, so it is suitable for wide popularization and application.

A sub-tank is disposed in a flow path from a main tank to a recording head. The sub-tank includes a tank main body, a level sensor and a flow restricting part. In the tank main body, ink replenished from the main tank is contained. The level sensor detects a liquid level of the ink in the tank main body. The flow restricting part restricts flowing of the ink in an upper-and-lower direction in the tank main body. The flow path is connected to the tank main body at a position below the flow restricting part. The flow restricting part is disposed at a position below a lower limit level of the liquid level.

The invention relates to the technical field of anchor rod length detection, and discloses an anchor rod length detection device for shaft engineering and a detection method.The anchor rod length detection device comprises a protection frame, a sealing door is hinged to the top of the protection frame, a rubber plate is fixedly connected to the inner wall of the protection frame, an instrument host is arranged in the protection frame, and a sensor connecting line is inserted into the top of the instrument host; a sensor is inserted into the end, away from the instrument host, of the sensor connecting line, a threaded rod is rotationally connected to the end of the sensor, a super-magnetic source connecting line is inserted into the top of the instrument host, and a super-magnetic source is inserted into the end, away from the instrument host, of the super-magnetic source connecting line. The surface of the anchor rod is sleeved with the mounting cylinder, at the moment, the receiving end of the sensor makes contact with the end of the anchor rod, the output end of the super-magnetic source makes contact with the end of the anchor rod and is kept horizontal with the anchor rod, and the sensor transmits received signals to the instrument host through the sensor connecting line; therefore, the length of the anchor rod embedded into the soil layer is detected.

A fluid level sensor assembly includes a first housing part having a fluid inlet and a fluid outlet and a fluid flow channel between the inlet and the outlet. The assembly also includes a sensor housing part formed on or integral with the first housing part and defining a sensing flow channel between a sensor end and a closed end, and has an opening from the sensing flow channel to the fluid flow channel of the first housing part. The assembly also includes level sensor components provided in the sensor flow channel at the sensor end, the level sensor components comprising: an actuator, and a switch component. The actuator and the switch component are arranged in the sensing flow channel such that when the pressure fluid in the fluid flow channel increases to increase the pressure in the sensing flow channel.

A level sensor is provided that facilitates communication with an external device. The level sensor comprises a level determination unit and a web server. The level determination unit determines the fill level of a medium in the container. The level sensor includes a web server that provides a monitor displaying the fill level determined by the level determination unit.

The present invention relates to the technical field of state detection, and specifically to a fluff removal function state detection system and method for a raising machine, including: a sensor detection unit that detects a first fluff feature vector through an infrared light sensor, detects a second fluff feature vector through a pressure sensor, and detects a third fluff feature vector through a level sensor; an adaptive adjustment unit that analyzes the fabric type and raising process parameters, and dynamically adjusts the feature baseline set and the evaluation threshold set; a state evaluation unit that respectively performs risk assessment on the fluff feature vectors according to the feature baseline set and the evaluation threshold set to obtain the fluff removal function state; a state prediction unit that predicts the remaining risk time according to the fluff feature vectors, the fluff removal function state, the fabric type, and the raising process parameters. The present invention can achieve forward-looking detection and evaluation of the fluff removal function state of the raising machine.

A cap which is removably couplable to at least one waste oil container (C) and comprising at least one closing body (2) of the waste oil container (C), at least one level sensor (4) of the waste oil contained in the oil container (C) and inserted inside the at least one compartment (5) made in the closing body (2), the compartment (5) comprising at least one opening (6) towards the inside of the oil container (C) for detecting the oil level, at least one covering element (8) of the closing body (2) arranged above the closing body (2) to protect it from atmospheric precipitation or similar agents, the covering element (8) comprising one or more first through holes (9) to allow air to access the compartment (5), at least one collection tank (11) of liquids coming from the first through holes (9).

To provide a level sensor inspection device that can reduce a workload of a worker and can inspect whether or not a level sensor functions normally.SOLUTION: The invention relates to a level sensor inspection device used for inspection of a float-type level sensor which is provided in an upper portion of a liquid storage chamber of a liquid storage tank and which closes a bottom valve in the liquid storage chamber when a float rises. The level sensor inspection device includes: an air supply hose that conveys compressed air of a pressure higher than atmospheric pressure into the liquid storage chamber; and an air ejection pipe that is connected to a distal end portion of the air supply hose and ejects the compressed air to a lower portion of the level sensor from below the level sensor. The float can be raised by ejecting the compressed air from the air ejection pipe toward the float.SELECTED DRAWING: Figure 5

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).

Systems, methods, and computer program products for monitoring a level of product in a reservoir of a chemical dispensing system. A lid configured to engage an opening of a container includes a level sensor having a transceiver that transmits an output signal and receives a portion of the output signal reflected back to the transceiver. The level sensor determines an amount of the product in the container by comparing a characteristic of the reflected signal, such as time the reflected signal was received, to the characteristic of the output signal, such as the time the output signal was transmitted. The level sensor may also determine the size of the container based on the reflected signal, and take this size into account when determining the amount of product in the container. The level sensor transmits product level data to a mobile device in response to receiving an interrogation signal therefrom.

The utility model discloses a mining area goaf ecological environment monitoring and early warning system, and relates to the field of environment monitoring. Wherein the collapse monitoring module comprises a stay wire type crack meter, a GNSS (Global Navigation Satellite System) measuring instrument, a radar cavity monitoring unit, a video image acquisition unit and an acousto-optic complementary alarm lamp; the soil monitoring module comprises a soil acidity and alkalinity sensor, a soil heavy metal detector, a soil conductivity sensor and a multi-layer soil temperature and humidity sensor; the underground water monitoring module comprises a throw-in type underground water level sensor, a multi-parameter water quality detector, a belt type water sensor and an ultrasonic flowmeter; the gas monitoring module comprises carbon dioxide, methane, infrared propane and carbon monoxide concentration sensors; the data display module is installed in a mining area machine room or a control room. The data transmission module is arranged in a control cabinet matched with a mining field; the above devices work cooperatively with an ARM core processor, and real-time, accurate and comprehensive monitoring and early warning of the ecological environment of the mining goaf can be realized.

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.

A sump pump system may detect and utilize motion or acceleration of water in sump basins when implementing control of sump pumps. To detect the motion or acceleration, the sump pump system may utilize a sensor that is configured to detect motion or acceleration, such as an accelerometer or gyroscope. The sump pump system may identify a water level in a sump basin based on the detected motion or acceleration, which may be compared to a reading or expected signal from the sump pump system's “typical” sensor (e.g., float switch) that is used to detect one or more water levels. In this manner, the sump pump system may detect a malfunctioning level sensor that is used by the pump to detect high-water and low-water marks at which the sump pump activates and deactivates, respectively.

Title: In-situ control device for a level sensor. The invention relates to an in-situ control device (1) for a level sensor (10), of the sonar or ultrasonic type, the device (1) comprising: - a mast (2) extending along a longitudinal direction (20); - a base (3) modifiable between a support configuration in which it supports the mast (2), and at least one storage configuration; - a distance sensor (4) mounted along the mast (2), and having a detection axis (40) extending parallel to the longitudinal direction (20) of the mast (2), towards one end of the mast (2), called the lower end (201); - a detection paddle (5) movably mounted on the mast (2) along the longitudinal direction (20), between the lower end (201) and the distance sensor (4). Figure for the abstract: Fig. 2

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,

The invention relates to a method for operating a stack arrangement (1), comprising at least one stack (2) and at least one media and / or cooling line (3) connected to the stack (2). According to the invention, a liquid that arises during operation of the stack arrangement (1) due to leakage and / or condensation is collected in a tray (4) arranged below the at least one stack (2) and the at least one media and / or cooling line (3) and is detected by means of at least one fill level sensor (5, 6). The invention further relates to a stack arrangement (1) which is suitable for carrying out the method according to the invention or can be operated according to the method.

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.

The invention discloses a groundwater-soil correlation monitoring and analysis method and platform based on same-hole monitoring, and relates to the technical field of groundwater-soil monitoring and analysis. The platform comprises an inclinometer tube, a permeable flower tube, a sedimentation tube, and a plug which are sequentially connected from top to bottom. An array displacement meter and a magnetic induction device are installed on the inner wall of the inclinometer tube, and a sedimentation magnetic ring corresponding to the magnetic induction device is installed on the outer wall of the inclinometer tube. A groundwater level sensor is arranged in the middle of the permeable flower tube, a rope body is connected to the top of the groundwater level sensor, and one end of the rope body away from the groundwater level sensor is fixed on the top of the inclinometer tube. An RTU is also arranged on the top of the inclinometer tube. The invention can realize the integrated real-time monitoring of groundwater and land in the urban geological environment, realize the goal of one hole for multiple uses and one machine for multiple measurements, provide high-quality data support for the prevention and control of urban ground subsidence, collapse and other disasters, and lay a foundation for the subsequent linkage analysis of water and soil index changes.

A sensor assembly is positioned on an exterior of a tank to measure a fluid level within the tank. The tank is modified to include a surface feature and the sensor assembly is slotted within that surface feature. The sensor assembly includes a sensor device and a control circuit configured to drive the sensor device and evaluate readings to determine the fluid level. The sensor assembly further includes a communications interface to enable communication with a management system via a communications network. The management system can store information (e.g. fill status) related to the tank and additionally communicate with vendors or end users to coordinate resupply.