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BR-3502, 35GHz Fixed Head Radar

The BR-3502 Doppler radar antenna utilizes the Doppler principle to measure the velocity of moving objects. It can be used in a variety of application such as projectile muzzle velocity, in-bore measurement, very short range velocity measurement, etc. It is a great alternative to optical chronographs. The BR-3502 is compact as well as easy to deploy and use. It works at 35.5GHz and provides more than 3 times better resolution than a 10.5GHz (X-Band) radar, and can therefore be used on very small projectile calibers (ex: 1mm). The BR-3502 is particularly well suited for interior ballistic ranges where very short range measurements (down to few meters) are performed. It can also be used outside for short range measurement up to 250 meters (and more), depending on projectile caliber. 

Projectile velocity can be measured inside the gun barrel by using the BR-3502 in combination with a reflector, which is typically a metal plate made out of standard 1/8 inch thick aluminum sheet. Special accessories can be provided to properly align the radar beam and the reflector to achieve optimum results. Typically, in-bore measurement can be performed for 20mm caliber and above.BR-3502

The BR-3502 has been designed for short range applications. The following table summarizes the expected range performance for different projectile calibers. Actual performance can vary slightly based on projectile shape and material as well as test conditions.

Range Performance (typical)

Specifications