September 28th, 2010

Another Amazing Video from

Werner Mehl, the engineering genius behind Kurzzeitmesstechnik (Kurzzeit), a German technology company, has come up with another spectacular ultra-slow-motion video. Werner has developed some of the most advanced video equipment in the world, allowing him to film bullets in flight with frame rates up to 1,000,000 frames per second. That’s not a misprint — some of the Kurzzeit video cameras can record at ONE MILLION frames per second, though typical Kurzzeit “high-speed” videos might be shot at 200,000 or 250,000 frames per second.

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This 10-minute video was specially prepared by Werner for the 2009 SHOT Show. A masterpiece of high-speed movie-making, Werner’s video displays an amazing array of projectiles and targets. You can see bullets hitting armored and non-armored targets, bullets ripping through ballistic gelatin, bullets shattering glass, and even shotgun pellets striking rifle bullets in mid-air. Look for the effect of hollow points as they pass through the ballistic gelatin, and at the 4:26 mark you can see an airgun pellet slice though a paper target.

PVM-21 chronographHigh-Tech Equipment from Kurzzeit
In addition to producing high-speed video equipment, Kurzzeit builds the PVM-21, one of the most advanced consumer chronographs on the market. The “all-infrared, all the time” PVM-21 works in any lighting conditions, including total darkness. It employs two banks of infrared sensors (front and back — the black boxes in right photo). These are aligned vertically and placed 8″ apart (left to right.) That gives you a huge 4.5″ x 8″ sensor area to register shots. We’ve worked with some other chronographs where the practical “sweet spot” for reliable results was just 2″ x 2″, when using an air rifle. The PVM-21’s large sensor area makes it easy to align your rifle, and you don’t get errors if your shot is just a little off-center.

The PVM-21 can hook up directly to a lap-top computer. That way you can record all your shot velocity data directly into a spreadsheet. The PVM 21’s large sensor area and software interface make the PVM one of this Editor’s favorite chronos, along with the classic Oehler model 35P. In the USA, the Kurzzeit PVM-21 is sold by The $749.95 price includes sensor unit (with infrared), processing/display unit, infrared remote control, and software. It’s an impressive package — we just wish Werner would upgrade the display unit to include a rechargeable 12V DC battery. Right now you need to use an inline 120V AC to 12V DC transformer, or carry a separate 12V battery. I personally prefer to use a 3.5″x1.5″ rechargeable 12V battery rather than a 120v transformer and extension cords.

PVM-21 chronograph

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