SU530260A1 - Device for measuring the frequency increment - Google Patents

Description

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I The invention relates to the area of the | measuring technique and can be used to create devices of the previous. multiple measurements of frequency. j The percentage frequency meter is known, the generator contains an exemplary frequency generator, a frequency divider for the generator, a generator of rectangular pulses a key and a counter 1, i However, such a frequency meter is not possible; measure the absolute value of the I frequency deviation.

: It is also known a device for measuring the frequency increment containing a gene; a rator of calibrating frequency, a divider of hours, tots, | a control unit in the elements of coincidence, forglirovaniya counting blocks, switches and triggers 2.

This device does not allow to obtain; measurement results are in real scale: time ..

The purpose of the invention is to provide, possibly,: the availability of real-time measurement results. A: This goal is achieved in order to measure the frequency of radiation.

a serially connected oscillator of a calibrated frequency, a frequency divider and a control unit, one output of which is connected to one of the inputs of the coincidence element, the other input of which is connected to the input of the device through the driver and the encoder is connected to the inputs of the counting block of the initial frequency and counting block through a switch value of the frequency increment, equipped with a rewriting circuit, the potential inputs of which are connected to the information outputs of the counting block of the initial frequency value, pulse input one is connected to the output of the control unit and the outputs are connected.

(The inputs for recording the number of the counting block value | nor the frequency increment.

i. The drawing shows a block diagram

20 1 | devices .;

Claims (1)

I Device coAepjKiT formatOffer 1,: element 2 matches switch 3, i counting unit 4 initial frequency values, rewriting circuit 5, oscillator 6 calibrated frequency, divider 7 frequency, control unit 8 and counting unit 9 of the frequency increment. The device operates as follows: oGpaaoM.i In the initial state, switch 3 is in the upper position. For the time of the frequency measurement, determined by the time by the i block consisting of a calibrated frequency generator 6, a frequency divider 7 ,; control block 8, the coincidence element 2 is opened, and the initial cleanliness from the input | ® device through shaper 1, element 2 coincidence and switch 3 pbstvshaet to the input of the counting unit 4. To determine the frequency increment value, the switch 1 3 is shifted to the lower position, Impulse Beat by the control unit 8 no-J I step on the rewrite and write circuit input-). In snetsdy block 9, the additional code j is the j value of the initial frequency. Thereafter ; g to the control input of the coincidence element 2 receives the time setting signal from the control block 8 and the frequency increment measurement cycle begins. The measured frequency is the input to the counting unit 9. As a result, the frequency increment code is recorded in it. In the future, the operation of the device is similar. In this case, in each measurement, in the counting unit 9, the value of the frequency increment is fixed, and in the counting unit 4, the initial frequency of the NOI is constantly set, which ensures that I obtain real time results. The formula of the invention; A device for measuring the frequency increment, containing a calibrated frequency generator connected in series, a frequency divider and a control unit, one output of which is connected to one of the inputs; The matches of the elements of the match are: whose other input is connected via the driver. with device input. and the output through the switch .. is connected to the inputs of the counting. block of the stubbing of the hl-ptm.i ylgzh; values of frequency increase. characterized in that, in order to enable real-time measurement results to be obtained, it is equipped with a rewriting circuit, the tangential inputs of which are connected to the information outputs of the counting block of the initial frequency value, km-pulse input connected to the output of the control unit, connected to the inputs of the recording of the counting unit at a significant frequency frequency. East information, information about attention, mania in expert analysis: 1. Ermolov, RS. Digital frequency meters 9: L., Energii 1973, p. 23-26. 2, Auth. St. USSR No. 229688, G-01 R 23 / OO, 29.O8.66. : entrance eleven