RU2382321C2 - Signal converter of jet projectile angular stabilisation device - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: invention relates to rotating missile control systems. Proposed converter comprises demodulator connected to inputs of converter that converts the signals of reference and signal coils incorporated with angle transducer, and low-frequency filter with its input connected to demodulator output and output making converter first input. Proposed converter comprises additionally pulse generator and pulse counter with its data input connected to output of master oscillator. Pulse output connected is connected to S-inputs of first and second triggers. First trigger output is connected to second trigger D-input, second trigger C-input being connected to pulse generator output, first trigger R-input and counter R-input. Second trigger output is connected to control input of the gate connecting supply voltage to converter second output designed to feed angle transducer motor. Master oscillator output is connected to pulse generator second input, pulse generator first input being connected to converter that converts the signals of reference and signal coils incorporated with angle transducer.

EFFECT: higher accuracy, reduced mode-change time interval.

3 cl, 2 dwg

Description

The invention relates to the field of military equipment, namely to control systems for rotating missiles, and can be used, for example, in the development of signal converters of devices for angular stabilization of rockets of multiple launch rocket systems.

The known signal converter device of the angular stabilization of a rotating rocket according to the patent of the Russian Federation No. 2205355, publ. 05/27/2003, IPC F42B 10/60, F42B 15/01. An angular stabilization device for a rocket projectile containing an angular deviation sensor with a signal and support windings, a sensing element equipped with a permanent magnet and connected to an electric drive, an actuator and a signal converter, the inputs of which are connected to the signal and support windings, and the output to the actuator, the demodulator inputs in the signal converter are converter inputs, an additional linearization voltage generator is introduced, the output of the signal converter is equipped with it is connected in series by an adder and a comparator, the angular deviation sensor is equipped with an electric drive speed regulator and a cylindrical magnetic circuit, symmetrically positioned with respect to the center of the sensing element axis of rotation, while the signal and reference windings are installed between the sensing element and the cylindrical magnetic circuit, and the output of the linearization voltage generator is connected to the first input of the adder, the second input of which is connected to the output of the demodulator, while the output is comparate Ora is the output of the signal converter.

The reasons that impede the achievement of the technical result indicated below when using the known signal converter of an angular stabilization device adopted as an analogue include the fact that the signal value of the angular deviation sensor depends not only on the angular deviation, but also on the voltage frequency of the support coil, the instability of which reduces the accuracy of the angular stabilization system.

The known signal converter device of the angular stabilization of a rotating rocket according to the patent of the Russian Federation No. 2231015, publ. 06/20/2004, IPC F42B 10/00, F42B 15/01. According to patent No. 2231015, which is an analogue of the claimed invention, an angular stabilization device comprising an angular deviation sensor with a signal and reference windings, a sensing element with a permanent magnet and electric drive, a signal converter with a demodulator, the inputs of which are connected to the signal and reference windings, and an actuator, equipped with an amplitude detector, a comparison circuit, two comparators, a logic element NOT and a signal distributor, and an adder, ge linearization voltage generator and third comparator, while the input of the amplitude detector is connected to the output of the reference winding, and its output is connected to the first input of the comparison circuit, the second input of which is connected to the source of the specified voltage, and the output through the first comparator is connected to the first control input of the signal distributor and a logical element NOT, the output of which is connected to the second control input of the signal distributor, and the second inputs of the signal distributor are respectively connected to the first output the signal generator and the second comparator, the input of which is connected to the second output of the signal converter, in which the output of the demodulator through the adder is connected to the third comparator, the output of which is the first output of the signal converter, the output of the linearization voltage generator is the second output of the signal converter and connected to the second input of the adder, the outputs of the signal distributor are combined according to the OR circuit and connected to the executive body.

Common features of the signal converter of the angular stabilization device of a rotating rocket, selected as an analogue, with the invention proposed by the authors is the presence of a demodulator in the converter, the inputs of which are connected to the signal and reference windings of the angular deviation sensor.

The reasons that impede the achievement of the technical result indicated below when using the known signal converter of an angular stabilization device adopted as an analogue include the fact that the signal value of the angular deviation sensor depends not only on the angular deviation, but also on the voltage frequency of the support coil, the instability of which reduces the accuracy of the angular stabilization system.

Closest to the claimed is a signal converter of the device of angular stabilization of a rotating rocket, converting the signals of the reference and signal windings of the sensor of angular deviations into control signals of the executive bodies of the angular stabilization system, according to the patent of the Russian Federation No. 2126129, publ. 02/10/1999, IPC F42B 10/00, F42B 15/01. The structure of this converter includes a demodulator connected to the inputs of the converter for receiving signals of the reference and signal coils of the angular deviation sensor, and a low-pass filter connected to the output of the demodulator with its input and to the output of the converter for controlling the executive bodies rocket angular stabilization systems. This converter, which is the closest in technical essence and the achieved effect to the invention, is selected as a prototype.

According to the prototype, in an angular stabilization device containing an angular deviation sensor with a sensing element connected to the electric drive, a conversion unit and an actuator, the angular displacement sensor is equipped with signal and support coils, the angular deviation sensing element is equipped with a permanent magnet, and the conversion unit is equipped with two inverters and serially connected demodulator and low-pass filter, the output of which is connected to the input of the executive body, the demodulator is made in the form of two electronic keys, the outputs of which are connected and are the output of the demodulator, the output of the signal coil connected directly to the signal input of the first key, and through the first inverter to the signal input of the second key, and the output of the support coil connected to the control input of the first key directly and through the second inverter - to the control input of the second key.

The reasons that impede the achievement of the technical result indicated below when using the known signal converter of the angular stabilization device adopted for the prototype are that it contains information about the magnitude of the angular deviation of the longitudinal axis of the projectile contained in the voltage amplitude of the signal winding of the angular deviation sensor. In addition to the magnitude of the angular deviation, the amplitude value of the indicated voltage depends on the voltage frequency of the support coil associated with the rotational speed of the rotor of the angular deviation sensor, the instability of which reduces the accuracy of the angular stabilization system. This is a disadvantage of the known device. Its second drawback is the need to include a power source in the transducer that provides power to its constituent units.

Common signs with the proposed signal converter of an angular stabilization device is the presence in the converter, a prototype of a demodulator, connected to the inputs of the signal converter of the reference and signal coils of the angular deviation sensor, and a low-pass filter, the input of which is connected to the output of the demodulator, and the output is the first output of the converter.

Unlike the prototype, a pulse counter is introduced into the proposed converter, the information input of which is connected to the output of the master pulse generator, the output of the pulse counter is connected to the S-inputs of the first and second triggers, the output of the first trigger is connected to the D-input of the second trigger, the C-input of which is connected to the output of the pulse shaper, the R-input of the first trigger and the R-input of the counter, the output of the second trigger is connected to the control input of the key connecting the second output of the converter, designed to power the electric motor the sensor of the angular deviation sensor, to the power bus of the converter during pre-start preparation, the output of the master pulse generator is connected to the second input of the pulse shaper, the first input of which is connected to the input of the signal receiving transducer of the reference coil of the angular deviation sensor.

The task of the invention is to provide a device that improves the accuracy of the angular stabilization system and reduces the time it takes to enter the mode of the angular deviation sensor.

This is achieved by the fact that in the signal converter of the angular stabilization device containing a demodulator connected to the inputs of the converter of receiving signals of the reference and signal coils of the angular deviation sensor, and a low-pass filter, the input of which is connected to the output of the demodulator, and the output is the first output of the converter, the former is introduced pulses and a pulse counter, the information input of which is connected to the output of the master pulse generator, the output of the pulse counter is connected to the S-inputs of the first and second t of the triggers, the output of the first trigger is connected to the D-input of the second trigger, the C-input of which is connected to the output of the pulse shaper, the R-input of the first trigger and the R-input of the counter, the output of the second trigger is connected to the control input of the key, which connects the supply voltage to the second output of the converter, designed to power the electric motor of the sensor of angular deviations, the output of the master pulse generator is connected to the second input of the pulse shaper, the first input of which is connected to the input of the reference signal transducer th coil sensor angular deviations. The pulse shaper contains two triggers, the C-input of the first trigger is the first input of the pulse shaper, the second input of which is the C-input of the second trigger, the output of the second trigger is connected to the S-input of the first trigger and the output of the pulse shaper, the D-input of the second trigger is connected to the output the first trigger, whose D-input is connected to a common bus. Three diodes are introduced into the converter, the first diode is connected between the output of the switch and the converter output, designed to power the electric motor of the sensor of angular deviations, the second diode is connected between the specified output of the converter and its power bus, through the third diode connected with the output of the converter, through which it is powered with prelaunch preparation.

The technical result achieved by the implementation of the invention is expressed in increasing the accuracy of the angular stabilization system by providing a stable initial value of the voltage frequency of the supporting winding. In addition, the proposed converter reduces the time required to enter the mode of the angular deviation sensor, and the inclusion of three diodes with appropriate connections in the converter eliminates the need for an additional power source to be included in the converter.

The invention is illustrated by drawings. Figure 1 presents a block diagram of a converter; figure 2 - timing diagrams explaining his work.

The signal converter consists of a demodulator 1, a low-pass filter 2, a pulse generator 3, a pulse counter 4, the first 5 and second 6 triggers, a key 7, a pulse shaper 8, built on triggers 9 and 10, the first 11, second 12 and third 13 diodes , input bus 14 receive signals U _c of the signal coil 15 and the input bus receiving signals U _op reference coil of the sensor of angular deviations, the power bus 16 U _D engine sensor of angular deviations, the power lines 17 from a ground power source E _nip during prelaunch reactive sleep venom output converter 18 and power bus 19 blocks the signal converter.

The input buses 14, 15 are connected to the input of the demodulator 1, the output of which is connected to the input of the low-pass filter 2. The output of the low-pass filter 2 is connected to the output of the converter 18, designed to control the executive bodies of the angular stabilization system. The output of the generator 3 is connected to the counting C-input of the counter 4 pulses and the synchronizing C-input of the second trigger 10 of the shaper 8. The output of the counter 4 is connected to the S-inputs of the installation of the first and second triggers 5, 6. R-inputs of the reset counter 4 and the first trigger 5 connected to the synchronizing C-input of the second trigger 6, S-input of the first trigger 9 and the output of the trigger 10 of the shaper 8. The power line 16 of the engine of the sensor of angular deviations through the diode 12 is connected to the power line 19 of the converter blocks, and through the diode 11 and the key 7 is connected to bus 17 power supply the converter from ground equipment, converter blocks, which is connected via a diode 13 to the power supply bus 19 of the converter blocks. The control input of the key 7 is connected to the output of the trigger 6.

The proposed signal Converter operates as follows. During prelaunch preparation, the voltage E _{nip is} supplied to the converter bus 17 from the ground power source, and through the diode 13 it is supplied to the converter power bus 19. In the initial state, the trigger 9 on the inverse output has a "logical 1" and, accordingly, the trigger 10 is in the state "logical 0" at the output. After the arrival of N pulses from the generator 3 to the 4 pulse counter, the signal from its output sets the triggers 5, 6 to the “logical 1” state, which corresponds to the appearance of the logical 1 signal at the output of the trigger 6. This signal, coming to the control input of the key 7, provides it the circuit and the power bus 17 through the key 7 and the diode 11 is connected to the bus 16 of the motor power of the sensor of the angular deviation. The input buses 14, 15 of the converter begin to receive signals from the signal and reference coils of the angular deviation sensor. When a signal is received via bus 15 from the reference coil of the sensor of angular deviations (see Fig. 2, a), it switches to the C-input of trigger 9 and a logical unit appears at its output, which arrives at the D-input of trigger 10. The first pulse from generator 3 pulses (see figure 2, b), arriving at the C-input of the trigger 10, switches it, and at the output of the shaper 8 (see figure 2, c), a logical unit is set, which sets the pulse counter 4 to zero (see figure 2, g) and trigger 5 (see figure 2, d). Trigger 9 also appears in the initial state through feedback at the S input. The next pulse of the generator 3 sets the trigger 10 to its original state. Thus, each pulse input through the input bus for receiving signals of the reference coil of the angular deviation sensor leads to the appearance of a short pulse at the output of trigger 10 (former 8) equal to the period of generator 3 (see Fig. 2, c). In the period between the pulses arriving on the bus 15, the counter 4 counts the number of pulses of the master oscillator 3.

Let the period of pulses coming from the shaper 8 (see figure 2, c) exceed the value

T _op > T _G (N + 1),

where T _G is the period of the master oscillator 3,

N is the capacity of the counter 4,

T _op - period (current) of pulses arriving on bus 15 from the support coil of the sensor of angular deviations.

In this case, an impulse appears at the output of counter 4 (see FIG. 2, d), which switches to the “logical 1” state of triggers 5 and 6 at the S inputs (see FIG. 2, d, f). The signal from the output of the trigger 6 is supplied to the control input of the key 7, which, through the diode 11, provides voltage to the output bus 16 of the motor power of the sensor of angular deviations. The pulse from the output of the shaper 8 pulses switches the trigger 5 to its original state, and also resets the counter 4.

Thus, for Т _op > Т _Г · (N + 1), i.e. when the frequency of the signal of the reference coil is less than that specified on the output bus 16 of the converter, a voltage appears, leading to an increase in the frequency of the voltage of the reference coil of the sensor of angular deviations. The period of the master oscillator 3 is selected as

,

,

where - f _{0 the} desired frequency of the signals of the reference coil.

At the same time, the capacity of the counter 4 is determined from the ratio

,

,

where δ is the permissible relative error of the frequency of the signals of the reference coil.

In the event that the current value of the period of the signal of the support coil becomes T _op ≤T _Г · (N + 1), the counter 4 does not have time to fill up, since until it is filled with a signal from the output of the former 8 (trigger 10), it is reset . The same signal, arriving at the C-input of trigger 6 (see figure 2, c, e), switches it to the initial zero state. Then, the key 7 is opened, disconnecting the supply voltage from the bus 16. When disconnecting the power from the bus 16, the frequency of the signal of the reference coil decreases. When it becomes less than the required value of f _o , the processes are repeated. Thus, the angular deviations of the motor sensor is connected to a ground power source E _nip if the current value of the period signal T _op reference coil greater than the desired value 1 / f _o and will be disabled if the period of the reference signal coils less than a desired value. When the load on the engine of the angular deviation sensor or the value of the ground supply voltage changes, the transient time decreases, since the power source is constantly connected to the angular deviation sensor motor if T _op > 1 / f _о and is constantly turned off at T _op <1 / f _о . The stabilization of the period of the signals of the reference winding improves the accuracy of the angular stabilization system.

When a missile is _{launched, the} ground power source E _{nip is disconnected} from the bus 17 and the voltage to the angular deviation sensor motor is not supplied through the diode 11. In this case, the engine of the specified sensor continues to rotate by inertia and switches to generator mode. In this mode, the voltage from the motor output from the bus 16 through the diode 12 is supplied to the power bus 19 of the signal converter blocks, which eliminates the need for an additional converter power source.

The proposed signal converter of the angular stabilization device provides a stable initial value of the voltage frequency of the supporting winding, which increases the accuracy of the angular stabilization system. In addition, the proposed Converter reduces the time required to enter the mode of the sensor of angular deviations. The inclusion of three diodes with appropriate connections in the converter eliminates the need to introduce an additional power source into the converter.

The implementation of the stabilization device in accordance with the invention allowed to reduce the level of instrumental errors in the formation of the control signal and thereby increase the accuracy of angular stabilization in comparison with the prototype by 15-20%.

The indicated positive effect is confirmed by tests of prototypes made in accordance with the invention during the development work.

Claims (3)

1. A signal converter of a device for angular stabilization of a rocket, containing a key, a demodulator connected to the inputs of the converter for receiving signals of the reference and signal coils of the angular deviation sensor, and a low-pass filter, the input of which is connected to the output of the demodulator, and the output is the first output of the converter, characterized in that it is equipped with first and second triggers, a pulse generator, a shaper and a pulse counter, the information input of which is connected to the output of the master generator pulse pulse, the output of the pulse counter is connected to the S-inputs of the first and second triggers, the output of the first trigger is connected to the D-input of the second trigger, the C-input of which is connected to the output of the pulse former, the R-input of the first trigger and the R-input of the pulse counter, output the second trigger is connected to the control input of the key that connects the supply voltage to the second output of the Converter, designed to power the electric motor of the sensor of angular deviations, and the output of the master pulse generator is connected to the second input of the Vatel pulses, whose first input is connected to the input transducer signal receiving coil sensor reference angular deviations. 2. The Converter according to claim 1, characterized in that the pulse shaper contains two triggers, wherein the C-input of the first trigger is the first input of the pulse shaper, the second input of which is the C-input of the second trigger, the output of the second trigger is connected to the S-input of the first trigger and the output of the pulse shaper, the D-input of the second trigger is connected to the output of the first trigger, the D-input of which is connected to a common bus. 3. The Converter according to claim 1, characterized in that it is equipped with three diodes, the first diode connected between the output of the key and the output of the converter designed to power the electric motor of the sensor of angular deviations, the second diode is connected between the specified output of the converter and its power bus through the third diode associated with the output of the converter, through which it is powered during prelaunch preparation.

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