Abstract: A digital device for determining a steady-state value of the analogue signal, comprising an analog-to-digital converter for converting the analogue signal into a numerical pulse code, electrically connected, through a synchronization unit, to inputs of threshold counters, a clock pulse generator electrically connected, through the synchronization unit, to the inputs of the threshold counters and to those of the time interval discriminator, and, through the frequency halver, electrically connected to the inputs of a reversible counter, a digital display unit electrically connected to the digit outputs of the reversible counter. The device also comprises decoders of zero state of the threshold counters, having their inputs respectively connected thereto and their outputs electrically connected to subtract count blocking inputs of the respective threshold counters, to the inputs of the reversible counter and to a control input of the digital display unit.

Abstract: A method and apparatus for discriminating the thermal effect of phase transformation of metals and alloys in the process of their cooling, by measuring the temperature of a metal or alloy being cooled, the time elapsed from the beginning of the temperature measuring cycle and the duration of a temperature arrest occurring in the process of the metal or alloy cooling. The measured duration of the temperature arrest is compared with a threshold of the temperature arrest duration for making a decision ascertaining the occurrence of the thermal effect of phase transformation if the measured duration of the temperature arrest exceeds the threshold of duration of the temperature arrest.

Abstract: The device according to the invention comprises a follow-up analog-to-digital converter having an input whereto there is applied a signal carrying information on the actual temperature of the melt, a conversion suppression input, a synchronized clock pulse output, synchronized code pulse outputs, and a parallel code output; a local temperature increments criminator having inputs connected to the synchronized code pulse outputs of the follow-up analog-to-digital converter, and outputs; a time interval discriminator having reset inputs connected to the outputs of the local temperature increments discriminator, a count input connected to the synchronized clock pulse output of the follow-up analog-to-digital converter, and an output connected to the conversion suppression input of the follow-up analog-to-digital converter; a digital display unit having an information input connected to the parallel code output of the follow-up analog-to-digital converter, and a control input connected to the output of the time in

Abstract: A digital analyzer for determining the liquidus temperature of metals and alloys comprising a converter of the actual temperature of metals and alloys to a digital pulse code which is connected via a synchronization unit to a reversible counter and to a discriminator of local temperature increments. Outputs of the converter are connected to reset inputs of a first time interval discriminator and to reset inputs of a second time interval discriminator. Count inputs of the first and second time interval discriminators are connected via the synchronization unit to a clock pulse generator.

Abstract: The device comprises a converter for converting the actual temperature of metal to a digital pulse code and a clock pulse generator which are connected through their outputs to a synchronization unit. A synchronized clock pulse output of the synchronization unit is connected to a count input of a time interval counter; synchronized code pulse outputs of the synchronization unit are connected to add and subtract inputs of a reversible counter and a threshold counter having overflow outputs connected to reset inputs of the time interval counter. The device also comprises a code selection unit with its inputs connected to digit outputs of the reversible counter which is provided with a count suppression input. The device further includes a flip-flop, a NOT element, and two gates with their inputs connected to the overflow output of the time interval counter, and their outputs connected to set and reset inputs of the flip-flop.

Abstract: According to the invention, the proposed digital device for automatically checking the carbon content in a metal with reference to the temperature stops on the cooling curves comprises a converter which converts the actual temperature of the metal into a numerical pulse code, said converter having applied to its input a signal carrying information on the metal's temperature, said converter having outputs consisting of code pulses corresponding to positive and negative temperature increments on the cooling curve; a reversible counter which converts the numerical pulse code into a parallel code, said reversible counter having its add and subtract inputs electrically coupled to the outputs of the converter; a clock pulse generator; a time interval discriminator whose code pulse inputs are electrically connected to the outputs of the converter, said discriminator's clock pulse input being electrically connected to the output of the clock pulse generator; a code storage register to store the codes corresponding to