Muzzle velocity measurement:
Naval gun MVRS
The accurate measurement and analysis of muzzle velocity in real-time is critical when firing naval guns.
Reliability and accuracy at sea
The accurate measurement and analysis of muzzle velocity in real-time is critical when firing naval guns. Compensating the gun’s settings for factors such as weapon conditions, tube tolerance, ammunition lot variance, crew performance and the like is crucial to achieve the desired firing accuracy.
Weibel MVR on Bofors naval gun.
Naval firing accuracy is described in terms of precision and bias. A crew’s objective is for multiple rounds to strike the target with a small mean point of impact (MPI) and high precision. Effectively controlling the muzzle velocity gives you a better opportunity to achieve satisfactory results in both of these parameters.
A global standard
Through features such as self-calibration and active motion compensation technologies, our muzzle velocity radars set the global standard for measurements of modern naval gunswith minimum maintenance and logistic requirements.
A straightforward, single-unit add-on to your onboard weapon system, our muzzle velocity radar system consists of an antenna with an integrated processor and an optional display unit.
Muzzle velocity is calculated using Fast Fourier Transform (FFT) and digital signal processing, which is applicable to all ammunition types and calibers. Its advanced trigger detection ensures correct operation, even when different nearby weapons are fired at the same time.
It measures velocity from 30 to 3,000 meters per second, in burst of up to 10,000 rounds per minute.
The antenna unit contains all necessary electronics and an acoustic trigger. Its trigger and Doppler signals are digitized by the processor unit and stored for digital analysis immediately after recording. The result is visible on the display unit less than two seconds after fire and submitted to a fire control computer.
Seamless integration
The Weibel muzzle velocity radar interfaces to a wide range of fire control systems through a simple serial or ethernet based interface, depending on the model. The data can also be manually calculated.
All of our muzzle velocity radar systems are qualified and accepted in accordance to STANAG 4114, meaning they meet all the required standards for use with NATO’s weapons systems.
Self-calibration
Our radars are available with an optional self-calibration feature. With this, there is no need to take the weapon system out of service for calibration and check-outs. It remains installed on the gun for the duration of its service life, reducing maintenance and logistics costs.
Motion compensation
Because the radar is mounted on the gun itself, it is exposed to the gun jump and moves with the gun. It can therefore measure the sum of the projectile velocity and the gun jump, reducing errors in the reported muzzle velocity and increasing the precision of the weapon.