Transient Flow-field Interferometer

The launch of the BOJIONG Transient Flow-field Interferometer provides strong technical support for the study of physical phenomena, optimization of aircraft design, simulation and prediction, enhancement of safety and reliability, and improvement of flight efficiency. It is suitable for a variety of special-needs sampling cameras, fluorescence imaging technology in the field of biology, and stripe cameras and various high-speed cameras in the field of high-speed image acquisition.

In addition, our independently developed external four-wave interference sensor (FIS4 External In, FIS4-EX1) projects the encoded grating onto the user's dedicated camera through a 4f imaging system, achieving external access flexibility and efficiency. This innovative design further expands the application range of the Transient Flow-field Interferometer, making it an indispensable high-precision measurement tool in scientific research and industrial fields.

Item Specification

Feature Of BOJIONG Transient Flow-field Interferometer

【Anti-interference】

The high-speed flow field optical aberration wavefront measurement system utilizes a modern common-path spatial phase modulation shear interference system, whose linear carrier effectively suppresses external environmental interference.

【High-resolution and large-distortion digital detection】

The CCD image acquisition system has a resolution of up to 1280×1024 pixels, achieving precise digital detection through high-speed data transmission, suitable for high-resolution, high-linear carrier, and large-distortion detection. The system provides scientific and detailed high-speed wavefront diagnostic results.

【High-speed signal acquisition】

Equipped with a near-infrared DPSS laser that can operate continuously or in pulse mode under transient and integral states, achieving high-speed signal acquisition with a maximum frame rate of no less than 450Hz. Developed and equipped with an external synchronous signal acquisition system to ensure synchronous acquisition of signals between the variable flow field target and the high-speed detector.

 Application Of BOJIONG Transient Flow-field Interferometer

ThisBOJIONGTransient Flow-field Interferometer Suitable for sampling cameras with various special requirements, diverse fluorescence imaging techniques in the field of biology, and in the realm of high-speed image acquisition, stripe cameras and various high-speed cameras are commonly utilized.

BOJIONG Transient Flow-field Interferometer Details

Professional software module

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

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

◆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 Flow-field Interferometer developed by a team of professors from Zhejiang University and Nanyang Technological University in Singapore, this technology is patented in China and utilizes the principles of diffraction and interference to achieve advanced four-wave lateral shear interferometry. It boasts excellent detection sensitivity and anti-vibration performance, allowing for real-time and high-speed dynamic interferometric measurements without the need for vibration isolation, with a frame rate exceeding 10 frames per second.

The FIS4 sensor is renowned for its ultra-high phase resolution of 512×512 (reaching 260,000 phase points). It has a broad measurement range, from 200 nanometers to 15 micrometers, with a measurement sensitivity of up to 2 nanometers, and a measurement repeatability better than 1/1000λ (RMS). These features make the FIS4 sensor widely applicable in various fields, including laser beam quality analysis, plasma flow field detection, real-time monitoring of high-speed flow field distribution, image quality assessment of optical systems, microscopic profile measurement, and quantitative phase imaging of biological cells.