nac Image Technology List of Products and Services

"2D/3D PIV" is a fluid analysis system that mixes tracers into transparent air or water, which are usually not visible to the naked eye, to visualize the flow field. From the resulting images, it is possible to perform quantitative analysis of flow direction and flow velocity. In 2D PIV, the behavior of tracer particles illuminated by a light sheet is captured with a single camera, measuring the two-dimensional velocity distribution within a plane. In stereo 3D PIV, a wide light sheet and two cameras are used. The two cameras create a parallax in the depth direction due to the difference in shooting angles, and this difference is utilized to calculate the velocity components in three axes. [Features] ■ Flow analysis of wind tunnel tests ■ Flow analysis of combustion fields ■ Flow analysis in microchannels (Micro PIV) ■ Velocity analysis of sprayed fine particles *For more details, please refer to the related links or feel free to contact us.

The "Schlieren method" is a technique that visualizes subtle density changes in gases, which cannot be seen with the naked eye, by using a special optical system to refract light. In high-speed camera imaging, the Schlieren method can be used to visualize fluctuations in gases before combustion in internal combustion engines, shock waves that occur in regions exceeding the speed of sound, and the resistance experienced by aircraft bodies as a result. If an optical system can be assembled, density changes of any phenomenon can be qualitatively observed, making it a very convenient visualization technique used in many situations. 【Imaging Equipment (Partial)】 ■ High-Speed Camera MEMRECAM ACS-1 - ISO Sensitivity Color/Monochrome: 5,000–40,000/25,000–200,000 - Resolution: 1,280×896 pixels - Shooting Speed: 50–1,000,000 fps - Recording Time Normal Mode: Approximately 2.8 seconds (60,000 fps, 256GB, 12bit) *For more details, please refer to the related links or feel free to contact us.

The "High-Speed Spectroscopic Measurement System" combines a high-speed camera, an image intensifier, and a spectrometer to acquire and analyze the spectra of flames and plasmas. The spectrometer can internally accommodate up to three diffraction gratings, allowing for switching according to the desired wavelength range and wavelength resolution. With software that converts image data into spectral spectra, it is possible to display the spectral spectra of flames and plasmas as well as their temporal variations. 【Features】 <Spectrometer> ■ MK-300 Polychromator - Optical system: Aberration-corrected special optical system - Wavelength range: 200–600 nm - Resolution: Half-width 0.2 nm - Aperture ratio: F = 4.4 *For more details, please refer to the related links or feel free to contact us.

In research exploring the field of reproductive medicine and cellular motility mechanisms, tests examining the effects of administered drugs on flagellar movement are effective. It is possible to analyze the cycle, trajectory, and speed of sperm flagella from clear high-speed footage, allowing for the investigation of sperm motility efficiency and other factors. Visualization and motion analysis of animal sperm, which had been difficult due to insufficient light in dark field illumination methods, have become possible with high-sensitivity high-speed cameras. 【Recommended High-Speed Camera】 ■MEMRECAM Q2m - ISO sensitivity Monochrome: 32,000 - Resolution: 1,920×1,080 pixels (50–2,000 fps) - Shooting speed: 50–100,000 fps - Dimensions: approximately (W) 62×(H) 62×(D) 87.5 mm - Weight: approximately 670 g *For more details, please refer to the related links or feel free to contact us.

By conducting waveform analysis of flagella, which serve as the propulsion mechanism for microorganisms and sperm during movement, we can contribute to the understanding of the locomotion mechanisms of microorganisms. For capturing images of microorganisms that are thick and difficult to focus on, a high-resolution high-speed camera that can visualize a wide field of view all at once is effective. Additionally, the pixel size of the sensor is about half that of conventional models, allowing for imaging without increasing the magnification of the optical system, which enhances the depth of field. [Recommended High-Speed Cameras (Partial)] ■MEMRECAM GO GO-4K - ISO sensitivity Monochrome: 400–12,500 - Resolution: 4,608×2,176 pixels (10–1,000 fps) - Shooting speed: 10–20,000 fps - Recording time: 2.26 seconds (1,000 fps, 32GB, sensor output 10bit) *For more details, please refer to the related links or feel free to contact us.

The "fluorescence lifetime measurement device" has high temporal resolution in the picosecond range, allowing for the direct observation of the photodynamics of luminescent molecules through time-resolved emission spectrum measurements. It is possible to capture the processes that change moment by moment from the optical excited state directly. By combining a spectrometer and a streak camera, it enables simultaneous time-resolved measurements at multiple wavelengths, and tracks spectral changes in the time domain according to the time resolution of the laser, not just the fluorescence lifetime. 【Features】 <Spectrometer> ■M25 Monochromator - Capable of extracting light of a specific wavelength through a slit - Optical system: Asymmetric deformable Czerny-Turner mount type - Wavelength range: 200–1,400 nm - Resolution: Half-width 0.1 nm *For more details, please refer to the related links or feel free to contact us.

The "Oil Film Measurement System" measures by mixing a fluorescent agent with the target object and illuminating it with a light source that excites the fluorescent agent. It is possible to convert the brightness of the excited fluorescent agent into film thickness and measure the oil film thickness. This system is suitable for quantifying the oil film inside pistons, fuel adhesion, and other film thickness amounts. 【Analysis Section】 <Film Thickness Analysis Software> ■ Converts the brightness of the excited fluorescent agent into film thickness and measures oil film thickness ■ Film thickness measurement range: 100μm and above ■ Data input: Shooting data from the MEMRECAM series ■ Data output: Histogram display, line profile display, brightness distribution display *For more details, please refer to the related links or feel free to contact us.