SU123740A1 - Apparatus for measuring and recording temperature differences between predetermined altitudes in the surface air layer - Google Patents

Description

Devices are known for measuring the temperature difference at predetermined altitudes in the surface air layer. However, with their help, it is not possible to automatically record temperature differences between the specified levels in the form of readable entries on one tape. With the aid of known devices for measuring temperature differences at predetermined levels, it is not possible to measure and record average temperatures with "t; oi between predetermined levels, and also to measure and record average values of temperature differences and average values of average layer temperatures for any selected period of time.

The proposed device is free from these disadvantages.

It uses an additional non-equilibrium bridge with three arms formed by constant resistances, the fourth arm being measured for measurement using an electromechanical distributor and a system of electromagnetic relays alternately connecting the measuring diagonals of non-equilibrium bridges with thermal resistance, which makes it possible to measure and record average temperatures in layers between the given levels at a given point in time. In addition, the device has a kinematic articulation of the reverse axis An electronic automatic bridge electric motor with a disk fitted with several circumferential apertures, on one side of which, at a distance equal to the aperture distance from the center of the disc, incandescent lamps are installed, each of which automatically closes the power supply circuit when connected to the electronic bridge measuring diagonal number 123740

A nonequilibrium bridge is connected to this lamp, and on the other side of the same disk, photoresistances are installed against incandescent lamps, each of which is connected to the input of a corresponding scaling circuit and makes it possible to measure and record average values of temperature differences and average layer temperatures between given levels for any selected period of time.

The principal electrical diagram of the thermogradiograph is shown in the drawing. The circuit consists of 6 parts for measuring the following various purposes: for measuring the temperature difference between the upper and middle levels — 1; for measuring the temperature difference between the middle and lower levels — 2; for measuring the sum of the temperatures between the upper and middle level-mI - 3; to measure half the amount of temperature between the middle and lower levels of mi-4; to control the zero positions of the carriage on the right - 5; to control the zero positions of the carriage - 6.

Within an hour, 15 series of marks are made on the tape. The installation provides for the possibility of varying the temperature range, which is carried out using keys 7 and 8, and changing the sensitivity of the gradiograph using keys 9 and 10. Thermograph sensitivity is 7 mm / deg. the sensitivity of the gradientograph with one key position is 9 and 10-30 mm / deg., with the other one - 12 mm1 degrees.

Since there are two sensors on the middle level, which are included in different bridges, when processing the measurement results, the temperature on the middle level can be obtained from the readings of two independent bridges, which is used to monitor the accuracy of measurements and to determine the measurement accuracy.

In the middle part of the drawing, an automatic digital averaging unit is shown. The disk 12 is kinematically associated with the axis of the reversing motor 11 with five holes arranged in a circle. Light bulbs are mounted above the disk, and photo resistors under the disk, which are connected to the inputs of the corresponding scaling schemes. When electromagnetic relays are triggered, the carriage movement is converted into groups of pulses arriving at the input of the corresponding non-slotted circuits 13, 14, 15, 16, and 17. In each of the non-slotted cells, an accumulation of pulses occurs during a predetermined averaging interval as many times as the measurement series are in the averaging interval.

At the end of the averaging period, the synchronous motor 18 closes contact 19, as a result of which the multivibrator 20 starts working. During the multivibrator operation, the sliders of the search-seekers 21, 22, 23, 24 and 25 alternately poll all the photoresistances mounted on the tiratrons of the recalculated cells. Since the striking relays 26, 27, 28, 29, and 30 are included in the circuit of the iskatcha relays, current pulses will pass through the latter if the thyratrons are hot. In this case, the striker relays will work and give marks on paper 31. If the thyratrons are not hot t - marks will not be. The paper moves discretely with the sliders of the detectors, but with a slight delay. Thus, on paper, the number of pulses is recorded during the observation period, and thus the mean value of the difference and half the sum of temperatures in the binary system.

Subject invention

Claims (2)

1. A device for measuring and recording the temperature difference between predetermined heights in the surface air layer, containing several non-equilibrium bridges, whose shoulders are formed by thermal resistances, an electromechanical distributor, which includes measuring diagonals of thermal-resistance bridges, and several binary recalculation diagrams assembled on cold cathode tiratrons and having photoresistance against each left counting thyratrons of each conversion cell included in the electromechanical reading Systems equipped at the output with high-speed recorders, characterized in that, in order to enable measurement and recording of average values of layer temperatures between predetermined levels at a given time, an additional non-equilibrium bridge with three shoulders formed by constant resistance is used in it, the length of which is measured by the electromechanical distributor and the system of electromagnetic relays, the measuring diagonals of non-equilibrium bridges with ter are alternately connected osoprotivleni mi. 2. The device according to claim 1, characterized in that, in order to enable measurement and recording of average values of temperature differences and average values of layer temperatures between predetermined levels for any selected time interval, the axis of the reversible electric motor of an electronic automatic bridge is kinematically connected with - fitted with several circumferentially arranged discs, on one side of which, at a distance equal to the apertures from the center of the disc, incandescent lamps are installed, each One of which automatically closes for the time of measurement when the measuring diagonal of the corresponding non-equilibrium bridge is connected to the electronic bridge, and on the other side of the same disk, photoresistances are installed opposite the incandescent lamps, each of which is connected to the input of the corresponding scaling circuit. To 123740