The pterosaurs have already gone abroad, and foreign production lines will be built.

In order to meet the needs of foreign users, the pterosaur team stepped up the ground test of the first pterosaur II drone. It is reported that Saudi Arabia will establish a production line for drones, and the partner is China Chengdu Aircraft Industry Group.

The pterosaur drone is a medium- and low-altitude, military-civilian dual-purpose, long-haul multi-purpose drone developed by AVIC Chengdu Aircraft Design Institute. It is equipped with a 100-horsepower piston engine and has a fully independent platform. It is a “star of the day” in the field of Chinese drone manufacturing. It can also carry a variety of reconnaissance, laser irradiation / ranging, electronic countermeasures equipment and small open space combat weapons.

Tasks such as surveillance, reconnaissance, and ground attack missions can be performed, as well as for stability, counter-terrorism, and border patrols. At the kadex-2016 defense exhibition in Kazakhstan, the Kazakh Air Force suspected of a high-profile display of drones suspected of being produced in China. The pterosaur drone "shape looks like the larger UAV of the United States, but it is similar in size to the MQ-1 Predator. It weighs 1.1 tons, is 9 meters long, and has a wingspan of 14 meters. The "wing dragon" is the highest. It can fly to an altitude of 5,300 meters and a range of 4,000 kilometers, which can be used for military and non-military operations.

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The "Pterosaur" UAV not only has the ability to accurately strike enemy targets, but also can carry reconnaissance equipment to carry out long-distance long-range reconnaissance on enemy targets. The overall performance has reached the international advanced level of the same type of drones. . The performance of the aircraft is similar to the famous "predator" unmanned attack aircraft of the US military. The "predator" drone is famous for making "dagger action" in Iraq and Afghanistan. It is understood that although the performance of the aircraft is no less than the US "predator", but the price is far lower than the other side.

The first batch of "Pterosaur" UAVs purchased by the UAE were delivered in 2010. This is the first time that the Chinese UAV system has entered the Middle East. This type of drone did not go well in the subsequent multiple shootings, for unknown reasons. The hot weather in the Middle East may affect the communication between the drone and the ground sensor. Uzbekistan has also purchased the "Pterosaur". Some observers pointed out that many countries, especially developing countries, will be very interested in buying "pterosaurs." China intends to strengthen its competition in the global drone market.

The Kazakh military ordered two pterosaur drones from China Chengdu Aircraft Corporation to be carried by the An 124 transport aircraft.

Piezoelectric Discs For Flowmeter Sensor

Piezoelectric ceramic disc

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Application: flow meter measurement

There are many kinds of USF used in closed pipeline according to the measuring principle, and the most commonly used are propagation time method and Doppler method. Among them, time difference ultrasonic flowmeter is used to measure fluid flow by the principle that the time difference of sound wave propagating downstream and countercurrent is proportional to the velocity of fluid flow. It is widely used in raw water measurement of rivers, rivers and reservoirs, process flow detection of petrochemical products, water consumption measurement of production process and other fields. According to practical application, time-difference ultrasonic flowmeter can be divided into portable time-difference ultrasonic flowmeter, fixed time-difference ultrasonic flowmeter and time-difference gas ultrasonic flowmeter.

Ultrasonic flow-meters use at least two transducers aligned so that ultrasonic pulses travel across the flow of liquid or gas in a pipe at a known angle to the flow.

Technical data:

Electromechanical coupling coefficient K_p: > 0.62

Dielectric Loss tg δ: <2%

Nominal Piezo discs for ultrasonic flowmeter:

OD14.2*1MHz PZT-51

OD14.6*1MHz PZT-51

OD15*1MHz PSnN-5

OD15*2MHz PSnN-5

OD20*2MHz PSnN-5

OD15*1MHz PZT-51

OD15*2MHz PZT-51

OD20*2MHz PZT-51

Size, Frequency and Electrode on request.

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