Transient Aerodynamic Flow Field

The Transient Aerodynamic Flow Field, a digital detection device with strong anti-interference capabilities, high resolution, and large distortion, is equipped with an ultra-high-speed camera. It provides strong support for wind tunnel testing, flow field simulation, and enhancing the safety and efficiency of aircraft flight. BOJIONG has developed an external four-wave interference sensor with independent intellectual property rights (model: FIS4-EX1), which uses a 4f imaging system to image the encoded grating onto the user's dedicated camera through external access, thereby achieving more precise measurements.

Item Specification:

Feature Of BOJIONG Transient Aerodynamic Flow Field

【Anti-interference】

The aeroptically distorted wavefront measurement system for high speed flow around the flow field utilizes a modern common path with spatial phase modulation Shear interference system, whose linear carrier can effectively control the external environmental interference

【Digital detection with high resolution and large distortion】

CCD image acquisition system equipped with high resolution (1280×1024 pixels), high-speed data transmission to achieve high resolution digital detection, high resolution - high linear carrier - large distortion detection. A high speed wave front diagnosis package with scientific and rich measurement results is provided.

【High-speed signal acquisition】

With a near-infrared DPSS laser that can adapt to both transient and integral states with continuous and pulsed, high-speed signal acquisition can be realized, with a maximum frame rate of no less than 450Hz. An external synchronous signal acquisition system is developed and equipped to complete the synchronous acquisition of signal between the target variable flow field and the high-speed target detector.

Application Of BOJIONG Transient Aerodynamic Flow Field

This BOJIONG Transient Aerodynamic Flow Field suitable for sampling cameras with various special requirements, various fluorescence imaging in the biological field, and in the field of high-speed image acquisition, stripe cameras and various high-speed cameras will be used.

BOJIONG Transient Aerodynamic Flow Field Details

Professional software module

◆Real-time dynamic acquisition display, easy to dynamically observe 3D waveform changes

◆  Friendly software interface including 3D topography display, contour map display, PV, RMS, POW and other numerical display

◆The measurement area can be freely selected round and square, and can be freely adjusted after selection

◆It can measure the height value curve and calculate the region roughness and other numerical parameters by pulling the wire

BOJIONG Transient Aerodynamic Flow Field developed by a team of professors from Zhejiang University and Nanyang Technological University of Singapore, with domestic patented technology, it combines diffraction and interference to achieve a common four-wave transverse shear interference, with superior detection sensitivity and anti-vibration performance, and can realize real-time and high-speed dynamic interferometry without vibration isolation. The real-time measurement shows a frame rate of more than 10 frames. At the same time, the FIS4 sensor has an ultra-high phase resolution of 512×512 (260,000 phase points), the measurement band covers 200nm~15μm, the measurement sensitivity reaches 2nm, and the measurement repeatability is better than 1/1000λ (RMS). It can be used for laser beam quality analysis, plasma flow field detection, real-time measurement of high-speed flow field distribution, image quality evaluation of optical system, microscopic profile measurement and quantitative phase imaging of biological cells.