Split pattern system

Split type schlieren can be used as a general optical display instrument to observe the density and temperature distribution of the transparent medium and the refractive index changes in the medium.

Split type schlieren can be used as a general optical display instrument to observe the density and temperature distribution of the transparent medium and the refractive index changes in the medium. It can ingest the qualitative material of the airflow density change to be studied, in order to provide a real flow image of the test object. Such as scientific research fields such as stratified flow, supersonic flow, shock wave, heat and mass transfer, natural and forced, combustion, flame, explosion, plasma and some chemical reactions. It is one of the important experimental ingest equipments in the preliminary test of aerospace operations.

Main mirror	1. Optical material of main reflector: K9 optical glass, stress≤2 2. Machining surface shape error of the main mirror ≤λ/10 3. The mechanical control structure of the main mirror: there are 2 degrees of freedom in pitch rotation, and there is a locking device, the pitch angle ± 5 ° 4. The caliber of the main reflector is ￠100--￠800mm, the size is determined by the user according to actual needs 5. The caliber of ￠100 reflector is 1M. The caliber of ￠200 reflector is 2M. And so on 6. Coating material of the main reflector: aluminized reflective film, and then a layer of protective film Note: The caliber of main reflector ￠100--￠800mm refers to its effective clear aperture
Mechanical adjustment	The center height of the schlieren can be determined according to the actual use of the user. The lifting adjustment range is ±50mm, the horizontal and front and rear direction adjustment range is ±25mm, the coarse adjustment step: ≤1mm/rev, the fine adjustment step: ≤0.1mm /turn. Adjusted in place, it can be locked and fixed. The bracket moves on the ground by the roller. After the initial adjustment, it is locked with its own locking device.
New dual-channel receiving method	Striated image interface: A multi-functional data acquisition interface is used, and synchronous use, photography, and camera equipment receive the striated image without affecting each other (the figure shows). It provides a better way for image acquisition and a more convenient method for subsequent computer image processing. The camera system uses a digital camera (the specific model is determined by the customer through negotiation). The camera provides the interface of a high-speed camera, and also provides the interface of the ordinary industrial CCD camera. It also provides a connection with the user's existing camera and camera equipment and the pattern projector Free service. The basic configuration of the interface: provide a standard interface according to the camera or camera interface provided by the user, and have special technical requirements (equipped with a camera or camera lens), which can be equipped according to user requirements.
light source	1. Special light source for halogen lamp: 300W/36V, continuous brightness adjustment, plus bearing fan for cooling system. 2. New LED special light source: 01. The wavelength is: 630nm (red light 5W/7V). 02. The wavelength is: 532nm (green light 5W/7V). 03. Pure white LED light source with 5W/7V and other wavelengths. LED special light source features: small size, no temperature rise, uniform light source lighting, service life>10000 hours. The use of single-chip control of brightness technology has completely changed the traditional lighting method. (Note: The LED light source of the above wavelength is freely selected by the customer) 04. If users need special light sources, they can design, install and debug according to the technical parameters provided by customers. For example: the laser light source uses a high-power red laser! 01, wavelength 635nm 200mw, orange-red laser component input voltage 12V AC and DC 02. Working current <300MA 03, with TTL modulation 04, appearance 333350MM+fan
Knife edge and slit	The moving distance of the terminal blade along the vertical edge is ±10mm., the opening width of the blade is 0-5mm, the parallelism of the blade is 0.01mm, and the blade can rotate 360 degrees around the optical axis. Optical slit width 0-3mm, slit width step size 0.01mm, parallelism 0.01mm. The stepping control of the knife edge and slit adopts a micrometer to adjust the mechanical structure, which ensures the movement of 0.01mm in step.
Electrical control	Individually designed according to the requirements and technical parameters provided by customers