Recently, in the northwest Pacific Ocean, crew members on the Kexue(Science) research vessel slowly lowered the HM2000c profile buoy into the sea. This is the 400th profile buoy deployed since China’s new - generation ocean real - time observation system (Argo) plan was implemented in 2002, and also China’s 30th domestically - made Beidou profile buoy. (Data source: Xinhua News Agency)

PART 01

Air Tightness Requirements

To provide precise positioning, navigation, and assist in marine environment monitoring, staff place positioning tools directly at various key points on the sea surface.

The positioning tools are exposed to air and the sea surface all year round, which imposes high requirements on their waterproof performance.

PART 02

Air Tightness Testing of Positioning Modules and Buoys

We customized a fixture according to the product.

Beidou Buoy Air Tightness Testing Equipment

(Beidou Positioning Module/Buoy Air Tightness Test Video —— HIRAYS)

PART 03

HIRAYS Air Tightness Tester

Principle of the Air Tightness Tester:

A certain pressure of gas is filled into the product cavity. After reaching the set pressure value, the gas supply is cut off. After standing for a period of time until the air pressure stabilizes, the pressure sensor monitors the pressure attenuation. If the attenuation exceeds the judgment threshold, the product is determined to have a leak.

Advantages of HIRAYS Air Tightness Equipment

Advanced Technology

As a leader in domestic high - end air tightness testers, HIRAYS has multiple technological breakthroughs and innovations. It masters core technologies such as “IVT” pneumatic sealing valve island technology and advanced differential pressure software algorithm. The minimum resolution can reach 0.1Pa, which greatly improves the accuracy and stability of the instrument.

Customized Service

HIRAYS not only provides air tightness testing instruments and equipment, but also covers mold manufacturing, system integration, and non - standard customization. It creates a vertical integration advantage from equipment to customized integration, providing customers with high - quality and efficient one - stop solutions.

Rich Experience

The waterproof testing instruments of HIRAYS have reached the world's advanced level in terms of accuracy and stability. At the same time, with the successful delivery experience of more than 5,000 customers, it has forged a very experienced R & D team.

Reliable After - sales Service

Provide reliable after - sales service, offer users training and technical support for equipment use. When service is needed, scan the device QR code to directly communicate with HIRAYS after - sales service personnel and say no to waiting.