choke ring

choke ring

[′chōk ‚riŋ]
(ordnance)
Metal ring used in the reaction chambers of certain recoilless weapons to control gas escape; the same function is carried out by throat rings, throat blocks, and restricting plugs in other types of recoilless weapons.
References in periodicals archive ?
00 TZGD) 4 Leica GRX1200 GG Pro Leica L1/L2 Choke Ring, using DM-T style (LEIAT504GG LEIS) 1 Javad JPS E GGD Ashtech L1/L2 Choke Ring SNOW (ASH701945C M SNOW-D/M element, REV.
Shooting my own Dead Ringer, which was thought to be a wad stop design with a full 360-degree interior choke ring, the payload becomes trapped while still encased in the plastic wad because the edges of the wad pedals hit the ring and turn inward, developing a crimp of sorts that hold the shot inside of the wad.
GPS 600 Series Antenna is a dual frequency antenna that achieves less than 1 millimeters offset between L1 and L2 phase centers without a choke ring by replacing conventional patch antenna designs with NovAtel's patent pending Pinwheel Technology -- an aperture coupled slot array configuration.
The ANT-3001BR is a high-performance geodetic choke ring antenna for use in reference station applications.
Contract awarded for This procurement is for four (4) GNSS CORS receivers and choke ring antennas that have reached end-of-life as well as purchase of one (1) GNSS CORS receivers and choke ring antenna for a new CORS site to be established near Winton.
Relative calibrations of single antennas are performed with respect to reference antenna Leica AT504 (LEIAT504) with choke ring construction elements, which has similar receiving parameters as the generally used Dorne Margolin type T antenna (AOAD/MT).
Topcon will supply 14 sets of Net-G3 CORS receivers and CR-G3 GNSS choke ring antennas.
These two antennas deliver choke ring level antenna performance, but without the size and weight.
Topcon will supply 132 campaign-mode (portable) GNSS CORS receivers and GNSS choke ring antennas for CMONOC.
Tenders are invited for Trimble NetR9 Ti-2 reference station receiver with choke ring antenna.
The standard iCGRS System incorporates the high-precision Ashtech L1/L2 Choke Ring antenna, and offers an optional Ashtech Geodetic IV (TM) antenna with removable ground plane.
Request for Quotation: Trimble netr9 ti-2 reference station receiver with choke ring antenna