All Products

The static pressure level gauge is a submersible level gauge. It is based on the principle that the static pressure of the liquid measured by the pressure sensor is proportional to the height of the liquid. It uses advanced isolated diffused silicon sensitive elements or ceramic capacitor pressure sensitive sensors to convert static pressure into electrical signals, which are then converted into standard electrical signals (generally 4-20mA/1-5VDC) after temperature compensation and linear correction. It is widely used in water level monitoring fields such as urban water supply and drainage, sewage treatment, groundwater, reservoirs, rivers, and oceans.

Air ultrasonic level meter uses the device to transmit ultrasonic pulse signals, which are reflected by obstacles. The receiving device receives the reflected signals, analyzes the time difference between the transmission and the echo, and calculates the change of the liquid (object) level in combination with the ultrasonic propagation speed. It has the function of automatic temperature compensation, non-contact measurement, high precision, simple installation and maintenance.

Uses lens antenna radar sensor, operating frequency 60GHz, and uses continuous wave measurement. It has the characteristics of corrosion resistance, high precision, low power consumption, and strong anti-interference ability. Integrated intelligent water level tracking and identification algorithm, can filter out fixed interference echoes and multipath interference, and has intelligent perception of unstable measurement errors caused by pole shaking, bridge deck shaking, water surface fluctuations, etc., and performs intelligent optimization compensation, and the measurement results are accurate and reliable.

A dual-level mutual calibration water level measurement system (dual-channel full-range level gauge) developed based on the independent intellectual property calculation model. The dual-channel design ensures that there are no blind spots in various working conditions, and can also achieve accurate measurement under harsh working conditions (such as uneven density, surface debris, etc.). The intelligent algorithm has the functions of automatic identification and switching and elimination of abnormal data, and real-time dual-level mutual calibration. When a value jumps or abnormal values appear, the system automatically calculates to ensure data accuracy. The equipment uses static pressure and ultrasonic data as backup to ensure the online rate of the equipment.

Uses horn lens antenna radar sensor, working frequency 120GHz, adopts FMCW frequency modulation continuous wave measurement principle, built-in RTU module and lithium sub battery. It has the characteristics of corrosion resistance, high precision, low power consumption, strong anti-interference ability, etc. Integrated intelligent water level tracking and identification algorithm, can filter out fixed interference echo, multipath interference, intelligent perception of pole shaking, bridge deck shaking, water surface fluctuations and other causes of unstable measurement errors, and intelligent optimization compensation, the measurement results are accurate and reliable. Suitable for manholes, sewers, storage tanks and other scenes.

The buried waterlogging monitor is based on the principle of underwater ultrasonic level measurement. It uses the time difference between the emission of sound waves and the reception of the water surface echo to obtain the current liquid level height, realizes water immersion detection and liquid level collection, and monitors the waterlogging situation on the road. It consists of a stainless steel shell, a water level detection module, a Bluetooth module, a GPRS/4G/NB-IoT/LORA wireless communication module, a battery, etc. Developed based on the characteristics of urban waterlogging, it has a compact size and can be buried in the road surface to achieve waterlogging monitoring.

Ultrasonic Doppler flowmeter uses ultrasonic Doppler principle for measurement. It uses a combined wedge sensor to measure flow rate based on the continuous Doppler principle. The sensor has two built-in piezoelectric crystals, which are used for ultrasonic signal transmitter and receiver respectively. At the same time, the sensor integrates static pressure liquid level measurement and temperature measurement, and automatically compensates for the influence of temperature on sound velocity. It is widely used in flow measurement in urban drainage systems, rivers, ditches and other scenarios.

Wedge-shaped electromagnetic flowmeter (mouse-type electromagnetic flowmeter), an electromagnetic induction flow velocity sensor based on the PDC pulse DC principle, can measure the velocity and flow rate of full pipe flow/partial pipe flow in combination with liquid level measurement. The velocity sensor adopts a spike electrode design, which can effectively reduce the contamination of the electrode. The wedge-shaped electromagnetic flow velocity sensor is installed at the bottom of the channel in an immersed manner. When the fluid conductivity is above 10µS/cm, this product can be used to measure the fluid velocity/flow rate, even if the pipe flow is not full/open channel.

The radar flowmeter has built-in liquid level and flow rate measurement modules. It is a non-contact flowmeter designed with microwave lens + microstrip array, 120GHz radar liquid level measurement + 24GHz radar Doppler surface flow rate measurement. It has the characteristics of high precision, low power consumption, strong anti-interference ability, etc. It can work stably all day long, is not affected by temperature gradients, cobweb condensation, pollutants and sediments in the water, and accurately measures water flow.

Radar ultrasonic flowmeter, with 24GHz CW continuous wave Doppler + ultrasonic Doppler two speed measurement modes, radar Doppler measures flow velocity in non-full pipe flow state; automatically switches to ultrasonic Doppler to measure flow velocity in full pipe flow state, so that both full and non-full pipes can be measured; polyester plastic shell, suitable for underground pipe network and other highly corrosive liquid and gas environment; the product has been screened by military-grade stress and can work normally in harsh high and low temperature environments; passed 6KV high voltage surge test, it has high reliability even in lightning environment.

The partially filled pipe electromagnetic flowmeter is a device independently developed by DWI specifically for the precise measurement of partially filled pipe flow. Like ordinary electromagnetic flowmeters, it uses Faraday's law of electromagnetic induction to measure flow. Through the unique low-level electrode layout and non-contact capacitive liquid level measurement, the electromagnetic method can achieve synchronous measurement of liquid level and flow rate in a non-full pipe state without the need for additional liquid level measurement devices. It is particularly suitable for the precise measurement of partially filled pipe flow in the water supply and wastewater industries.

The partially filled pipe electromagnetic flowmeter, is a device specially designed for accurate measurement of partially filled pipe flow. Like ordinary electromagnetic flowmeters, it uses Faraday's law of electromagnetic induction to measure flow. The flow rate is measured by low-level electrode layout, and air ultrasonic liquid level measurement is integrated to achieve electromagnetic method for synchronous measurement of liquid level and flow rate in partially filled pipe state. It is especially suitable for accurate measurement of partially filled pipe flow in water supply and wastewater industries.