SU949769A1

SU949769A1 - Shock-excited crystal generator

Info

Publication number: SU949769A1
Application number: SU813260704A
Authority: SU
Inventors: Олег Александрович Мещеряков; Игорь Федорович Соколов; Леонид Леонидович Вепринский; Александр Алексеевич Зеленский; Федор Федорович Колпаков
Original assignee: Предприятие П/Я М-5068
Priority date: 1981-03-13
Filing date: 1981-03-13
Publication date: 1982-08-07

Description

(54) КВАРЦЕВЫЙ ГЕНЕРАТОР УДАРНОГО ВОЗБУЖДЕНИЯ(54) QUARTZ SHOCK-EXCITATION GENERATOR

1one

Изобретение относитс к радиотехнике и может, быть использовано в радиоизмерительной технике, например, при нсследо .ваннн различных четырехполюсников.The invention relates to radio engineering and can be used in radio measuring technology, for example, when following various different two-port networks.

Известен кварцевый генератор ударного возбуждени , содержащий последовательно соединеннь1е усилитель-формирователь ударного импульса,кварцевый дифференциальномостовой фильтр, управл емый ключ, фазовращатель и усилитель гас щего импульса, выход которого подключен к другому входу кварцевого дифференциально-мостового фильтра, а также элемент управлени 1.A quartz oscillator of shock excitation is known, which contains a series-connected shock pulse shaper, a quartz differential bridge filter, a control key, a phase shifter and a quench pulse amplifier, the output of which is connected to another input of a quartz differential bridge filter, as well as a control element 1.

Однако в известном кварцевом генераторе ударного возбуждени невозможно измен ть частоту заполнени выходного радиоимпульса в зависимости от его длительности.However, in a known quartz oscillator of shock excitation, it is impossible to vary the frequency of filling the output radio pulse, depending on its duration.

Цель изобретени - обеспечение изменени частоты заполнени выходного радноимпул| са в зависимости от его длительности.The purpose of the invention is to provide a change in the frequency of filling the output of the radnoimpul | sa depending on its duration.

Поставленна цель достнгаетс тем, что в кварцевый генератор ударного возбуждени , содержащий последовательно соединенные усилитель-формирователь ударного. импульса, кварцевый дифференцнально-мостовой фильтр, управл емый ключ, фазовращатель и усилитель гас щего импульса, выход которого подключен к другому входу кварцевого дифференциально-мостового фильтра, а также элемент управленн , дополнительно введены триггер, дифференцирующа цепь и генератор управл ющего напр женн , причем последовательно соединенные триггер, дифференцирующа цепь, генератор управл ющего напр жени и элемент управлени включены между входом уснлнтел -формнровател ударного импуль10 са н управл ющим входом кварцевого дифференциально-мостового фильтра, а другой выход триггера подсоединен к управл ющему входу управл емого ключа.The goal is achieved by the fact that a shock-excitation crystal oscillator containing a series-connected shock amplifier. pulse, quartz differential-bridge filter, control key, phase shifter and damping amplifier, the output of which is connected to another input of the quartz differential bridge filter, as well as a control element, additionally introduced a trigger, a differentiating circuit and a control voltage generator, In series, a trigger, a differentiating circuit, a control voltage generator and a control element are connected between the input of the impact pulse generator and the control input to Vartsov differential differential filter, and the other output of the trigger is connected to the control input of the control key.

На чертеже приведена структурна элект15 рическа схема кварцевого генератора ударного возбуждени .The drawing shows a structural electrical circuit of a quartz oscillator of shock excitation.

Claims

The device contains a shock pulse shaping amplifier 1, a quartz differential filter 2, a control switch 3, a phase shifter 4, a damping amplifier 5, the output of which is connected to another input of a differential quartz differential bridge 2, trigger 6, a differential circuit 7, control voltage generator 8, control element 9. The amplifier booster impulse 1 input connected to the first input of the trigger 6 is connected to the input terminal 10. The output of the quartz differential bridge filter 2 is connected to the output terminal 11, the stop pulse arrives at terminal 12. The device operates as follows. The triggering pulse arrives at the input terminal 10, formed by the amplifier .1em-shaper 1, the shock pulse arrives at the circuit of the quartz differential-bridge filter 2, the output voltage from which goes to the output (output terminal 11) and to the input of the control key 3. Phased with using the phase shifter 4, the signal from the controlled key 3 and amplified in the amplifier 5 of the damping pulse is fed to the second input of the quartz differential-bridge filter 2 and produces a suppression of oscillations of the quartz resonator caused by the shock pulse. Starting n iiiyj; bc from the input terminal. We start 10 trigger 6. And the stop pulse, which is available to step 12, returns the triter 6 to the riepBot a4a..ibHoe state. The pulse formed by the trigger 6 is fed to the input of the differentiating circuit 7, the pulses from which control the operation of the generator 8 of the control voltage, which is triggered by the pulse corresponding to the leading edge of the pulse from trigger 6, and returns to its initial state by the pulse corresponding to the falling edge of the pulse from the trigger 6. The voltage from the generator 8 of the control voltage controls the operation of the element 9 of the control, which is connected to the control input of the quartz differential-bridge filter 2. The element 9 controls and changes the tuning frequency of the quartz differential motor filter 2 and ultimately the filling frequency of the output radio pulses at the output (output terminal 11). The change in the filling frequency is correlated with the pulse duration removed from trigger 6, determined by the moment of arrival of the stop pulse from terminal 12 to the second input of trigger 6. The longer the pulse generated by trigger b, the larger the control element 9 changes the frequency of the quartz differential bridge filter

2. The operation of the control key 3 is determined by the pulse that comes from the second output of the trigger 6. The pulse arriving at the control input of the control key 3 determines the duration of the output radio pulses. Thus, the proposed quartz oscillator of shock excitation due to the introduced chain consisting of the trigger 6, the differentiating circuit 7, the generator 8 of the control voltage, makes it possible to obtain a correlated change in the frequency of the output radio pulses of the device depending on their duration. Claims of a shock excitation generator containing a shock pulse shaper amplifier in series, a quartz differential bridge filter, a control key, a phase shifter and a damper amplifier whose output is connected to another input of the quartz differential bridge filter, as well as a control element characterized in that, in order to ensure a change in the frequency of filling the output radio pulse, depending on its duration, a trigger is additionally introduced, A voltage control circuit and a control voltage generator, with a series-connected trigger, a differentiating circuit, a control voltage generator and a control element are connected between the input of a shock pulse forming amplifier and the control input of a quartz differential-bridge filter, and the other trigger output is connected to the control key input. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 604128, cl. H 03 H 5/32, 07/08/76 (prototype).