SU575086A1 - Device for registering time intervals - Google Patents

Description

one

The invention relates to medical technology and is intended to measure and record T-H-intervals of electrocardiogram.

A device for registration is known.

time intervals, containing a series-connected amplifier, a ShkShdt trigger, and two multivibrators waiting, as well as a time interval converter, a recorder, and a Til pulse driver. However, such a device has low write performance associated with the time spent on recharging the camera's photosensitive camera. film and its photochemical treatment.

The purpose of the invention is to increase the speed and resolution of the device when recording -T-SQG intervals.

The goal is achieved by the fact that the proposed device is equipped with a third standby multivibrator, a dynamic storage device and a sweep generator, and a two-coordinate samorizetsg is used as a recorder, the third standby multivibrator is connected by an input to the trigger output, and the output is connected to the input of a time interval and an oscillator, and the output of the trigger multivibrator is connected to the output of the trigger, and the output is connected to the input of the time-sensitive multivibrator, and the output is connected to the trigger output, and the output is connected to the input of the trigger multifibrator, and the output to the trigger dynamic memory device is connected to the Y-input of a two-axial recorder, output: the rubbed waiting multivibrator is connected to the second input of the dynamic memory device, and its input - to the input of the pulse modulator X dvuhhoordpnatnogo samopvstsa input connected to the output sweep generator, and its Z -Log yield pulsed mod5 L5ggora.

FIG. 1 shows a structural device for recording time intervals; in fig. 2 is a time chart illustrating the operation of the device.

Claims (2)

The device for time-domain registrars contains a Schmidt usn ntel 1, Schmidt trnpgrv 2, wired with an amplifier load, multivibrator 3 waiting, sewn by a pulse input to the Schmidt trigger output 2. The output of the standby multivibrator 3 is connected to the input of pulse modulator 4 and the pulse input of standby multivibrator 5. The load of the standby multivibrator 5 is the control circuit of dynamic storage memory 6. Output of the Schmidt trigger 2 is also connected to the pulse of multivibrator 7. Output pulse This multivibrator is an Evident input circuit of the converter 8 time interval-amplitude. The output of the converter 8 is connected to the signal input of the dynamic storage device 6. The device contains a two-pointer recorder 9, the Y input of which serves as a load of the dynamic storage device 6 X input of the loading of the scanner 10 scanner, and Z input the load of the pulse modulator 4. The device operates as follows. The input signal U, amplified in force 1, is fed to the input of trigger 2 Shmsh m. Schmidt's trigger produced signal impulses exceeding a predetermined level, for example, R-sets of an electric signaling signal and converts them into rectangular pulses of a given amplitude, which are then fed to the pulse inputs of the waiting multivibraters 3 and 7. For triggering multi-vibrators, it uses multi-selectors 3 and 7. the front of the pulse AU, Waiting muggi-bragg 3 forms square tF pulses with a temporary duration, then fed to the input of the pulse miniature 4 for controlling the output pen of the samopisv 9 and the HKfr pulsing input of the waiting mule tibibrator 5. The minimum pulse width AND is determined by the constant time of the clamp: pen recorder 9. The standby multivibrator 5 generates pulses U, yii, which are connected to the recharge circuit and memory of the dynamic memory device 6j and the back front of the pulse is used to start this mulchigger. The output signal and the standby multivibrator is a sequence of pulses, the width of each of which exceeds the total duration of the corresponding pair of output pulses and and. A) 5 multiwash multivibrators 3 a 5. The signal sludge is used to control the converter 5 time interval – ampli fi er. At the output of the transformer, a trapeoid signal UA is formed. Ampiditude of each trapezoidal impulse U, propelling the corresponding interval between two axes of pulses Ua. The flat top of the tripping is formed by the fronts of impulse U "and thus overlaps the pulses of UH in time and enters the signal input of the dynamic memory 6. At the time of arrival next control pulse U; the dynamic memory reads the amplitude value of the signal U and stores it before the next control pulse If arrives. . This operdi leads to compression of the spectrum width of the signal And / without any loss of useful information. The informative signal parameter TJ, is its amplitude. The storage device 6, which is a linear element, does not distort the amplitudes and does not disturb the temporal relationship between its changes and, therefore, does not result in the loss or distortion of information. It is known that the spectrum of the signal and at the output of the dynamic storage device is much narrower than the spectrum of the signal U, fed to its signal input, and is concentrated (for real input signals of the device) in the area of frequency. This makes it possible to use the output memory U of the dynamic memory device to power the input circuit of the vertical deflection system of the x-axis recorder ija. Apparatus of the Invention: A device for recording time intervals, comprising a sequential Schmidt trigger amplifier and a status of a leading multivibrator as well as a time-amplitude converter, a recorder and a pulse modulator, characterized in that, in order to increase the speed and resolution of the device, 1 -T is the ECG interval, it is the third pending multivalued multivalue, dynamic storage device and the sweep generator & as a registrar. a dual-recorder recorder is applied, the third waiting multivibrator is connected by an input to the trigger output, and the output is connected to the time converter input, which through the first input of the dynamic storage device is connected to the VI by the input of the two-coordinate recorder; standby multivibrator connected to the second input of the dynamic storage device, and its input - to the input of the pulse module