Is a float water level sensor the most reliable method of water level measurement?

FYC-3 float type water level sensor, using photoelectric or contact series encoders, with precision speed change mechanism, wire wheel, stainless steel wire rope, heavy hammer, wave hammer and float, etc. The sensor is installed above the logging head or the gauge pipe, when the liquid level changes, the float rises or falls, the measuring rope drives the wire wheel to do a rotating movement, and the encoder coaxially connected with the wire wheel outputs the digital signal corresponding to the liquid level and sends it to the intelligent measurement and control instrument, so as to achieve the purpose of real-time measurement and display of the liquid level.

The sensor has reasonable structure, strong anti-interference ability, high resolution, large range, long life, signal tracking memory function after power failure, it can be used for long-term liquid level measurement and can ensure the stability and reliability of performance, it is an ideal liquid level sensor for rivers and lakes, reservoirs, locks, hydropower stations, hydrological stations, water plants and petrochemical industries.

Technical indicators: 1. Detection range: 0-5m, 10m, 20m, 32m; 40m ，80m ，320m

2. Measurement accuracy: range 1

3. Resolution: 1mm; 1cm

4. Return: 2mm

5. Working voltage: DC5V-30V

6. Long transmission distance: 1200m

7. Output signal: a. Basic type: parallel gray code signal (b).

B. Intelligent type: 4-20mA standard analog signal (A), RS485 serial signal (C), C, SSI synchronous serial signal (S).

8. Environmental parameters: temperature -20 +80, relative humidity 95% (RH40).

There are errors in any measurement method. The float sensing device you mentioned is still relatively accurate.

Liquid level sensors.

A liquid level sensor (hydrostatic level gauge, liquid level transmitter, liquid level sensor, water level sensor) is a type of pressure sensor that measures the liquid level. The hydrostatic pressure submersible level transmitter (liquid level gauge) is based on the principle that the measured liquid static pressure is proportional to the height of the liquid, and adopts foreign advanced isolated diffusion silicon sensitive components or ceramic capacitive pressure sensitive sensors to convert the static pressure into an electrical signal, and then convert it into a standard electrical signal (generally 4 20mA 1 5VDC) after temperature compensation and linear correction.

It is divided into two categories: one is contact type, including single flange static pressure double flange differential pressure liquid level transmitter, float liquid level transmitter, magnetic liquid level transmitter, submersible liquid level transmitter, electric inner float liquid level transmitter, electric floating liquid level transmitter, capacitive liquid level transmitter, magnetostrictive liquid level transmitter, service liquid level transmitter, etc. The second category is non-contact, which is divided into ultrasonic level transmitters, radar level transmitters, etc.

It can be measured with a level sensor.

Nengdian's photoelectric liquid level sensor is a common liquid level sensor on the market, which has the characteristics of small size, high precision and high reliability. The photoelectric liquid level sensor detects the liquid level according to the reflected light received by the internal receiving tube through the principle of optical reflection.

The sensor contains a photoelectric receiver and an infrared light-emitting diode. The light emitted by the light-emitting diode is directed into a prism on the top of the sensor, and when there is liquid, the light is refracted into the liquid, causing the receiver to receive no or only a small amount of light. The receiver drives an internal electrical switch to work, which sends out an alarm signal.

In the absence of liquid, the light is reflected directly from the prism back to the receiver. Water level detection is achieved through this principle.

Depending on the water level environment, liquid level distance, accuracy requirements, etc., different sensors are used in different scenarios, and they should be selected in combination with the actual project cost, including pressure water level gauge, bubble water level gauge, ultrasonic level gauge, etc., all of which can achieve water level monitoring.

Pressure water level sensor (including piezoresistive type, bubble type).

Float level gauge.

Ultrasonic water level gauge.

Radar water level gauge.

Electronic draft survey. Wait.

I don't know if you're asking about this, this is a very regular water level gauge on water conservancy, and the liquid level gauge on the industry is not exactly a probability.

Yunniao Network - Focus on digital hydrological construction.

Liquid level sensor, Beijing Hengcheng Zhijie science and technology development.

The water level sensor refers to an instrument that can convert the water level parameters of the measured point into the corresponding power signal in real time. Its working principle is: the water level sensor in the container transmits the felt water level signal to the controller, and the computer in the controller compares the measured water level signal with the set signal, obtains the deviation, and then sends it to the water supply electric valve according to the nature of the deviation"On"with"off"to ensure that the container reaches the set water level.

After the water inlet process is completed, the computer in the temperature control part sends out to the electric valve that supplies the heat medium"On"The system then begins to heat the water in the container. When it comes to the set temperature. The controller issued a command to close the valve, cut off the heat source, and the system entered the insulation state.

In the process of programming, it is ensured that the electric control valve that controls the heat source does not open the valve when the system does not reach the safe silver water level, so as to avoid heat loss and accidents.

A sensor is an instrument that senses the temperature and level of the water and converts the perceived water temperature and water level into a changing electrical signal. In the history of the development of solar water heaters, the water temperature and water level sensor has always played a pivotal role, the intelligence and humanization of the water heater are inseparable from the water temperature and water level sensor, the water temperature and water level measurement and control instrument is inseparable from the water temperature and water level sensor, and the stable work of the water temperature and water level sensor is the guarantee of the intelligent control of the entire water heater. The water temperature and water level sensor from scratch, from simple to complex, from short to long, are inseparable from the efforts of solar professionals.

Water level sensor applications.

It is widely used in water supply pools, distribution pools, water treatment pools, wells, water tanks, water tanks, oil wells, oil tanks, oil tanks, and the measurement and control of static and dynamic liquid levels of various liquids in water plants, oil refineries, chemical plants, glass factories, sewage treatment plants, high-rise water supply systems, reservoirs, rivers, oceans, etc.

An example illustrates the application of submersible water level sensor in a model water level monitoring system: topology diagram of water level monitoring system submersible water level sensor data-51 series.

The water level sensor in the container transmits the perceived water level signal to the controller, and the computer in the controller compares the measured water level signal with the set signal to obtain a deviation, and then sends it to the water supply electric valve according to the nature of the deviation"On"with"off"to ensure that the container reaches the set water level. After the water inlet process is completed, the computer in the temperature control part sends a valve to the telecommunication valve that supplies the heat medium"On"The system then begins to heat the water in the container. When it comes to the set temperature.

The controller issued a command to close the valve, cut off the heat source, and the system entered the insulation state. In the process of programming, to ensure that the system does not reach the safe water level, the electric control valve that controls the heat source does not open the valve, so as to avoid heat loss and accidents. Introduction to Water Level Sensors Water Level Sensor Applications Water Level Sensor Principles @2019

A sensor is an instrument that can sense the temperature and level of water, and convert the perceived temperature and level into changing electrical signals. In the history of solar water heaters, water temperature and water level sensors have always played an important role. The intelligence and humanization of water heaters are inseparable from boiling water level sensors, and water temperature and water level measurement and control instruments are also inseparable from boiling water level sensors.

The stable work of the water temperature and water level sensor is the guarantee of the intelligent control of the whole water heater. The development of water temperature sensors from scratch, from simple to complex, from short to long service life is inseparable from the efforts of solar professionals. It is widely used in water plants, oil refineries, chemical plants, glass factories, sewage treatment plants, high-rise water supply systems, reservoirs, rivers, oceans, etc.

Measure and control static and dynamic levels in water supply tanks, distribution tanks, water treatment tanks, wells, tanks, wells, tanks, and various liquids. An example illustrates the application of water level sensors in water level monitoring systems: Water Level Monitoring System Data Topology Diagram-51 Series Water Level Sensors.

The water level sensor in the container transmits the sensed water level signal to the controller, and the computer in the controller compares the measured water level signal with the set signal to obtain deviations. Then, according to the nature of the deviation, the "open" and "close" commands are issued to the electric water supply valve to ensure that the container reaches the set water level. After the water inlet process is completed, the computer in the temperature control part sends an "on" command to the electric valve that provides the heat medium, and the system starts to heat the water in the container.

When the temperature is set. Only when the controller gives the command to close the valve and cut off the heat source, the system enters the insulated state. During the programming process, the electric control valve that controls the heat source is guaranteed not to open when the system does not reach a safe water level, so as to avoid heat loss and accidents.

Millions of car purchase subsidies.

Float water level sensorThe buoyancy of the liquid pushes the float with a magnet up and down, so that the internal reed tube turns on and off, so the float has a certain draft. Features:

It is simple to use, cheap, does not meet the food hygiene certification, is not suitable for use in viscous and impurity-containing liquids, and the float is easy to get stuck.

Photoelectric water level sensor:It is to detect the change of liquid level by using the principle of reflection and refraction of light at the interface of two different media. Features:

The structure is simple, the measurement accuracy is high, the corrosion resistance, the size is small, it can be installed in all directions, and it can also be used in harsh environments. The disadvantage is that it is not suitable for use in electrical equipment in direct sunlight.

Ultrasonic water level sensor:In the measurement, the ultrasonic pulse is emitted by the sensor (transducer), and the sound wave is reflected by the liquid surface and received by the same sensor or the ultrasonic receiver converts it into an electrical signal through a piezoelectric crystal or magnetostrictive device, and the distance from the sensor to the surface of the measured liquid is calculated by the time between the emission and reception of the sound wave. The disadvantage of the ultrasonic water level sensor is that there should be no obstacles under the sound wave, and the test is easy to have blind spots, which is expensive.

Capacitive Level Sensor:The biggest advantage is that the change of liquid level can be detected through the medium, which is cheap, and the disadvantage is that the wall thickness of the container is required, and it cannot detect who is in the container of pure metal.

Multi-point water level sensor:Multiple liquid level points can be detected at the same time.

The basic function of the water level sensor is as follows: detect and match the water level sensor to signal alarm + automatic water addition when there is no water.

It is an instrument that can convert the water level parameters of the measured point into the corresponding power signal in real time.

The LC-SW1 water level sensor is composed of a fully sealed diaphragm oil-filled sensor and a built-in high-performance microprocessor, which can digitally correct the nonlinearity and temperature drift of the sensor in a full range, and has HART communication protocol output and analog output. It has the characteristics of high precision and excellent stability, and can realize two-way communication in the field diagnosis process, which can be used in urban power supply, water conservancy and hydropower, metallurgy, petrochemical, etc.