chanelink logo
CHANELINK
Polski

Pressure sensing using dual color laser absorption spectroscopy

685
2024-03-09 13:58:51
Zobacz tłumaczenie

The research team led by Professor Gao Xiaoming and Professor Liu Kun of the Chinese Academy of Sciences Hefei Institute of Physical Sciences recently designed a concentration independent pressure sensing technology for high-temperature combustion diagnosis. This method is based on dual color laser absorption spectroscopy.

The results of this study have been published in Optics Letters.
Aircraft engines are transitioning towards high-temperature and high-pressure combustion to improve thermodynamic efficiency. Pressure is a key parameter for monitoring engine performance and diagnosing engine faults. However, traditional contact pressure sensors can disrupt combustion flow and are limited by the temperature tolerance of the sensor material.

The researchers of this study designed a non-contact pressure sensing technology for high-temperature environments and tested it at temperatures up to 1300 K. This study mainly addresses the challenge of considering the influence of molecular concentration on gas pressure measurement in such an environment.

Researchers have found that by connecting double absorption lines to widen the collision line width, concentration variables can be alleviated. This breakthrough enables researchers to achieve concentration independent pressure measurements.

To verify this discovery, considering that the main product of hydrocarbon fuel combustion systems is H2O, the team used double absorption lines of H2O near 1343 nm and 1392 nm in a precisely designed heating absorption cell. They each achieved 50 μ S and 3% time resolution and pressure measurement uncertainty.

Source: Laser Net

Powiązane rekomendacje

  • NUBURU announces its latest strategic blueprint

    Following the announcement of the immediate termination of a $2 million stock exchange agreement and its partnership with HUMBL, high-power blue laser light source manufacturer NUBURU has once again announced its latest strategic blueprint. Through specific understanding, after this strategic update, NUBURU's business model will cover two collaborative key business lines, with a focus on defense a...

    04-17
    Zobacz tłumaczenie

  • SEMA 2023: Huali's Easy Level Floating Free Laser Fuel Level Transmitter

    Winning the SEMA Best Engineering New Product Award is not an easy task. Therefore, it said a lot about Huali's new non floating fuel transmitter bringing hardware home. The Easy Level fuel level sender is a brand new design that does not rely on traditional float arm settings, but uses a frikken laser beam to measure the fuel level in the tank.More precisely, Easy Level uses LiDAR technology to m...

    2023-11-03
    Zobacz tłumaczenie

  • Laser Photonics Corporation acquires Control Micro Systems through asset purchase agreement

    Recently, Laser Photonics Corporation (LPC), a laser cleaning equipment developer listed on NASDAQ in the United States, announced that the company has signed a final agreement to acquire Control Micro Systems, Inc. (CMS) through an Asset Purchase Agreement (APA), but the financial details of the transaction have not yet been disclosed.At present, LPC's market value has shrunk by 70%, and it is de...

    2024-11-05
    Zobacz tłumaczenie

  • The application of laser technology in the automated production line of energy storage/power battery PACK

    Lithium batteries are highly favored in the fields of 3C digital and new energy vehicles due to their high energy density, environmental characteristics, and fast charging and discharging. Welding, as a crucial link in the manufacturing process of lithium batteries, has a decisive impact on battery performance and quality. Laser welding technology is increasingly playing an important role in the l...

    2023-12-18
    Zobacz tłumaczenie

  • BLM Group launches a new LT12 laser tube cutting system

    Recently, BLM Group in the United States has launched a new LT12 laser tube system, which performs well in cutting light and heavy pipes and profiles, and can handle materials with a diameter of up to 305 millimeters.According to the company, compared to other similar machines, the LT12 laser tube system reduces cutting time by up to 55% when cutting materials with the same maximum diameter, signi...

    2024-04-18
    Zobacz tłumaczenie