China ISFCS-212 fire control system stabilization
Country
China
Name
ISFCS-212 fire control system stabilization
ISFCS-212 Image-stabilized Fire Control System
Research and development unit
China North Industries (Group) Corporation
China North Industries Group
Production units
China North Industries (Group) Corporation
China North Industries Group
Status quo
Produce
Equipment cases
85-â…¡ main battle tanks
Overview
The fire control system for the 85-â…¡ main battle tank developed a new fire control system, and after the experiment on 59 tanks. The system with the car a long day / night periscope has an interface that makes the car go beyond long rotating turret gunner control or to deal with different objectives.
System components
1 sighting device
Sighting devices include day and night, ranging stable triple field of view sight, including the main sights, laser emission cavity, the laser power and counters, 1 × periscope into the mirror and shimmer sight. Its function is to observe the battlefield, targeting and tracking targets; determine the target distance; determine the target level and azimuth speed.
Its features include:
(A) by the method of direct field of view enables stable gunner can clearly observe the battlefield, easy to aim, track smoothly and reliably measure the distance.
(2) shimmer sight, 1 × periscope, such as laser firing chamber connected by a modular design approach and the main sights, so good interchangeability and easy maintenance.
(3) the use of a laser rangefinder first / last pulse logic technology, in order to suppress false targets.
2 ballistic computer
Ballistic computer including the computer body, control panel and stepper motor drives.
Its function is to: according to the selected playing Zan, target distance, the output of all the automatic and manual setting of the parameters of the sensor is mounted, and the calculated azimuth angle weapon advance angle; shooting display all input signals, and outputs intermediate results of various Yuan; self-test; When the fire control system is in the automatic setting division of work, the sight reticle by a stepper motor drive automatic setting by a stepper motor.
Its technical features include: weapons firing data is calculated by computing the cycle in order to improve the starting shooting; Thanks to LSI, ballistic computer simple structure, stable performance and reliable operation; interrupt switch to shooting with a quick check of the projectile off-target reason.
3 correction sensor
Target height and azimuth speed sensor is included in the sight of. Tilt sensor (vertical gyro) is used to measure static and dynamic tilt angle gun trunnion. Cross wind vane sensor (optional) is used to measure horizontal wind turret is located. Turret angular velocity sensor (tachometer generator type) used to measure the speed of the target azimuth automatic setting works when partition.
4 artillery bi stabilizer
Artillery, including the implementation of two-way stabilizer motor, gyroscopes group, converters, angle limiter, electromagnetic clutch, automatic locking device, console, tachometer generator, motor amplifier, amplifiers, power distribution boxes, body gyro, gyro turret, auxiliary fuel tanks, hydraulic booster and hydraulic power cylinder.
Artillery bi stabilizer function is: When the tank artillery chance stable movement and provide artillery firing; gunner or it can be used to drive the car long guns, and so before firing artillery automatic aiming.
Technical characteristics artillery bidirectional stabilizer is: by using the principle of complex control and stability, so that two-way stabilizer artillery guns showing a good tracking performance and high stability and accuracy; due to the use of advanced components and control methods, the bi-stable artillery is a good low-speed performance, and the ability to tilt swivel gun on a tank.
5 control equipment
Control equipment functions are: to stabilize ranging field of sight, ballistic computer and artillery carried out between electrically connected bi-stable, comprehensive and deal with all control signals; allow the formation of artillery firing signal; forced to allow firing artillery into the door; Show fire control system work and to assist with the line of sight artillery collimation adjustment.
ISFCS 212 fire control system block diagram as shown.
Principles and Features
The fire control system has two steady work like style and automatic setting division of work.
1.-type image stabilization work
Gunner control table to drive the line of sight. Position signal input to the gun sight bi stable, position feedback signal gun sight back and compare the position signal to form a closed loop, then follow the line of sight artillery movement.
When the target has been the target and measured its distance, ballistic computer data calculated according to the following cycle weapon firing data, the data is the distance from the automatic sensor target relative angular velocity, trunnion tilt, horizontal wind data as well as people Tooling given Shells, propellant temperature, air temperature, initial velocity data. Computed firing data integrated with artillery position signal. After a comprehensive two-way signal input to the gun stabilizer, automatic control by controlling the cannon to cannon angle and azimuth angle advance. When the gun reaches a predetermined position, allowing artillery fire control equipment generates and transmits a signal to the artillery firing circuit. If at this time gunner press the launch button, the gun can be immediately shot.
2 automatic setting mode partition
At this point, the lock gyro stabilization, so the field is no longer stable. Turret azimuth angular velocity sensor generates a target speed signal. When targeting and measuring the distance, the computer only once and produce firing data signals, these signals by stepper motor drive automatic setting sight annular partition. When using the ring aiming reticle target again after the gunner can fire.
Features of the fire control system are:
Sight independent and stable, with high stability and accuracy, so that the movement of tanks was observed by the gunner, targeting, tracking targets and measuring target distance and target relative motion angular velocity;
Feature allows the firing door (ie in line with the door) so that the system can automatically find the exact timing of fire;
In combat environment can change at any time due to shooting conditions, ballistic computer can calculate and generate a new cycle of firing data continuously available to the artillery, first hit rate can be improved;
Automatic setting angle and azimuth angle advance without disturbing the line of sight, fire control system is simple, short reaction time, from finding the target to fire only about 6s;
1 × periscope and shimmer gunner sight interchangeable;
The system has target azimuth velocity, angular velocity of the target level, trunnion tilt, automatic crosswind four kinds of sensors and drug-temperature, air temperature, muzzle velocity, manual stapling cross wind, manual loading given distance and in azimuth and elevation to the comprehensive correction 6 kinds of manual loading given parameters, but also choose from a variety of shells;
Fire control system can be used with the original tank car long day / night periscope sight interface, then turned the car long can override artillery to combat direction;
Fire control system is command ceremony, so the tank can quickly and accurately shoot moving targets on the move.
Performance data system parameters
Target distance 200 ~ 3990m
Target tracking angular velocity
Azimuth ± 20mrad / s
Level to ± 10mrad / s
Trunnion tilt ± 250mrad
Crosswind ± 20m / s
Propellant temperature -40 ~ + 50 ℃
Temperature -40 ~ + 50 ℃
Muzzle velocity of 0 to -4.5%
Comprehensive correction (for any kind of ammunition)
Azimuth -3.2 ~ + 3.1mrad
Level to -3.2 ~ + 3.1mrad
Information processing accuracy
Angular position
Azimuth ± 0.1mrad
Level to ± 0.1mrad
Target distance ± 10m
Target tracking angular velocity
Azimuth ± 0.4mrad / s
Level to ± 0.4mrad / s
Trunnion tilt ± 10mrad
Crosswind ± 1m / s
Manually Setting the parameters of the resolution
Manually loading a given distance 10m
Temperature 1 ℃
Propellant temperature 1 ℃
Muzzle velocity -0 / 5%
Comprehensive correction
Azimuth 0.1mrad
Low to 0.1mrad
Maximum rotational angular velocity
Turret azimuth 300mrad / s
Artillery level to 75 ~ 100mrad / s
Minimum rotation speed line of sight
Azimuth <0.3mrad / s
Level to <0.3mrad / s
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