SU843191A1 - Sensor of electric pulse flow,distributed by poissone law - Google Patents

Description

(54) ELECTRIC FLOW SENSOR

PULSES DISTRIBUTED BY LAW

POISSON

The invention relates to a pulse technique, and can be used to solve various problems in the theory of mass service, in particular in air traffic control systems. $

Known electrical sensor pulses ,, distributed according to a Poisson generator comprising uniformly distributed random number code lreobrazova- ₁₀ Tel-analog comparator chopper pulse generator, the generator HA, conjugation ,, varying in exponential. the fundamental law £ 1].

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The disadvantage of this sensor is the use of a uniformly distributed random number generator and a code-to-analog converter in it, which, as a rule, have very complex circuit _w implementations, which leads to a decrease in the reliability of the sensor.

The purpose of the invention is to increase the reliability of the sensor.

This goal is achieved by the fact that in the flow sensor of electrical pulses distributed according to Poisson's law, co; holding a series-connected voltage generator, a comparator, a chopper and a pulse shaper, the first output of which is connected to the input of the voltage generator, a noise generator and a key c are connected in series. memory, the output of which is connected to the second input of the comparator, and the second input is connected to the second output of the pulse shaper.

In FIG. 1 is a functional diagram of a flow sensor of electric pulses distributed according to Poisson's law; in FIG. 2 - time diagrams explaining the operation of the flow sensor '’of electrical pulses distributed according to Poisson's law.

The sensor (Fig. 1) contains a noise generator 1, a key ί with memory, a comparator 3, a voltage generator 4, a chopper 5, <. shaper 6 pulses.

The sensor operates as follows.

The noise generator 1 continuously generates a random signal (Fig. 2a), which is input to the key 2. The memory key 2 is, in the simplest case, an electronic key with a capacitor at the input, and the charge-discharge constant of the capacitor must be at least , three times less than the duration of the control pulse (from the shaper b), which is necessary to complete the recharging of the capacitor. The key 2 is closed for the duration of the pulse coming from the shaper 6, and during this time, the capacitor of the key 2 is recharged to the voltage output at this moment by the noise generator 1 (Fig. 2 8). This voltage is stored (memorized) on the key switch - о о cha 2 until the next pulse arrives. Simultaneously with the closure of the key 2, the voltage generator 4 is turned on, the output signal of which increases exponentially. Exponential-25 but the increasing voltage of the generator 4 (Fig. 2 b) is compared on the comparator 3 with the voltage m on the capacitor of the switch 2 and at the moment of equality of these voltages, the comparator 2 gives a pulse to the former 6 (Fig. 2 b). The pulse from the shaper 6. restarts the generator 4 ek ^ understood—

843191 4 is of special voltage and closes the key 2. The capacitor of the key 2 is recharged to a new voltage corresponding to the voltage at the output of the noise generator 1 at this moment. In this case, the sequence of pulses from the output of the shaper 6 will be distributed by switching on and off by the chopper 5.

Poisson’s law

Claims (2)

The sensor works as follows. The noise generator 1 continuously infuses a random signal (Fig. 2a), which arrives at the input of the key 2. The memory key 2 is, in the simplest case, an electric key with an input capacitor, the condenser charge time constant should be at least three times shorter than the duration of the control pulse (from the driver 6), which is necessary to complete the recharging of the capacitor. The switch 2 is closed for the duration of the pulse coming from the driver 6, and during this time the capacitor of the switch 2 is recharged to the voltage applied at this moment by the noise generator 1 {Fig. 26}. This voltage is stored (remembered) on the capacitor key 2 until the next pulse arrives. Simultaneously with the closure of the key 2, the voltage generator 4 is also turned on, the output signal of which increases exponentially. The exponentially increasing voltage of the generator 4 (Fig. 2b) is compared at comparator 3 with the voltage m at the capacitor of the switch 2 and at the moment of the equality of these voltages the comparator 2 triggers a pulse to the driver &amp; (Fig. 2 1). The impulse from the driver 6. Restarts the generator 4 of the exhibited 84 1 c1 voltage and closes the key 2. The capacitor of the key 2 is recharged to a new voltage corresponding to the voltage at the output of the noise generator 1 at this moment. The sequence of pulses from the output of the former 6 will be distributed according to the Poisson law. Switching the sensor on and off is controlled by a chopper 5. Claims of the invention A flux pulse distributed according to Poisson’s law, comprising a series-connected voltage generator, a comparator, an interrupter and a pulse shaper, the first output of which is connected to the input of the voltage generator, which In order to increase the reliability of the sensor, a noise generator and a memory key, the output of which is connected to the second input of the comparator, and the second one are entered into it. the input is connected to the second output form. worldspeaker. I. Sources of information taken into account in the examination 1. USSR author's certificate No. 285343, class, G 06 F 1 / O2, 1969. Fig1