SU115950A1 - Radio probe for measuring pressure, temperature and air humidity - Google Patents

Description

Existing radiosondes for measuring pressure, temperature ii of air humidity do not provide the necessary accuracy of measurements of meteorological elements due to errors caused by friction in the axes of kinematic mechanisms, the unreliability of the electrical contact of the code sector with the arrows of the sensor, as well as large inertial errors of the temperature sensor. In addition, the known radiosondes difficult to manufacture n inconvenient to use. The sensors of meteorological elements cannot be made individually, adjusted ir checked before installing them on

common frame.

The proposed radiosonde is free from the indicated disadvantages. This is achieved as follows:

1. The pressure, temperature and humidity sensors are mounted on separate frames attached after fabrication and adjustment of the sensors to the obi; it has a frame on which the 1-soda sector is installed.

2. Nylon boxes are rigidly fixed} S on opposite inner sides of the frame and are articulated between a helicoidal band spring with two directions of winding, to the middle of which a thin wall wall arrow is attached in the form of a bar of equal bending resistance.

3 A bimetallic thermometer Byno.pnen is a form of a bimetal helicoidal spring of a series of articulated articulated springs, having a pha from the middle opposite to the winding, and a hollow thin-walled contact arrow attached by its base to the middle of the spring.

№ 115950

4. The hard center of the moisture sensor membrane from a hygroscopic film is articulated by means of a flexible rod with a hollow thin-walled contact arrow, made in the form of a bar equal to the bending resistance and attached to the tensioned torsion spring, which serves as a uniform axis for turning the contact arrow.

5. The corrugated surface of the code sector is covered with a layer of silver, on which a code pattern is printed using an electrically insulating varnish.

6. The starting points of the windings of electromagnets of a semi-automatic regconstructor of radiosonde signals controlling printing punches are grouped by tens in accordance with the first letters of the code and connected via relays and buttons to the positive power supply bus, and the ends of the windings of the same electromagnets grouped by tens S in accordance with the second letters of the code are connected via buttons to the negative bushes.

7. The time delay relay is applied, which is triggered at a certain amperage in the electromagnet winding.

The device of the described radio probe is shown in FIG. I, 2, 3, 4, 5. 6, and 7.

The radiosonde consists (fig. 1) of the frame of frame 1, with mounted ones; pressure unit 2, temperature unit 4, humidity unit 5, code drum unit 3.

The design of the pressure evil is shown in FIG. 2, where two membrane aneroid boxes / are attached at opposite ends of frame 2. The boxes are articulated with a helicoidal spring 3, to the middle of which there is an arrow 4 with a contact tip 5.

The temperature unit (Fig. 3) is equipped with a bimetallic thermometer1 1 in the form of a helicoidal core / with an arrow 2.

The humidity unit is shown in FIG. 4. Here the sensor has a hygroscopic film in the form of a membrane 1, the hard center of which 2 is articulated by a pull 3 and spring 4 with an arrow 5.

The code sector is depicted in FIG. 5 and 6, where the corrugated surface / code sector is coated with silver on which the code design is printed.

The radiosonde signals are recorded by a semi-automatic recorder consisting of a tape mechanism, an electrical power source, printing punches controlled with help, and electromagnets, whose power circuit has a time delay relay and buttons.

The electrical circuit of the recorder is shown in FIG. 7, which shows the grouping of one ends of the windings of electromagnets in tens in accordance with the first letters of the code and their connection through electromagnetic relays and buttons to the positive terminal of the power supply, as well as the grouping of the other ends of the windings of the same electromagnets in accordance with the second letters of the code and their connection to the negative cheek that provides a graphical record of the values of meteorological elements in the form of individual curves. The use of time delay relays in the power supply circuit of electromagnets that control printing punches ensures their short duration of operation.

Subject invention

Claims (7)

1. Radio probe for measuring pressure, temperature and air humidity, containing as sensors aneroid boxes, bimetallic thermometers and membranes of a hygroscopic film with the same the center, whose readings are taken using a code sector connected to the radio unit, characterized in that, in order to ensure the autonomy of the factory manufacture of its individual components and to simplify the adjustment and calibration of these components, pressure, temperature and humidity sensors are mounted on separate frames attached after fabrication and adjustment of sensors to a common frame on which the code sector is installed. 2. The radio probe according to claim 1, characterized in that, in order to increase the dynamic stability and simplify the kinematic system of the pressure sensor, as well as eliminate measurement errors caused by friction in the axles, the aneroid boxes are rigidly fixed on opposite inner sides of the rectangular frame and articulated between a helicoidal ribbon spring with two directions of winding, to the middle of which are attached a thin-walled contact arrow, made in the form of a bar of equal bending resistance. 3. Radiosonde on PP. 1-2, differs by the fact that, in order to reduce the radiation and inertial errors of the temperature sensor and ensure its dynamic stability, the bimetallic thermometer is made in the form of a bimetal geocombald ribbon spring, which has oppositely windings from the middle, and a hollow thin-walled contact arrow attached to its base to the middle of the spring. 4. Radiosonde on PP. 1-3, characterized in that, in order to increase the dynamic stability of the humidity sensor and eliminate measurement errors caused by friction in the axes of the kinematic system., The rigid center of the membrane of a hygroscopic film is articulated using a flexible rod with a hollow thin-walled contact arrow, the form of a bar of equal bending resistance and an attached rod; the base to the tensioned torsion spring, which serves as an elastic axis for turning the contact arrow. 5. Radio IP 1-4, characterized in that, in order to improve the electrical contact of the surface of the code sector with the sensor hands, the corrugated surface of the code sector is coated with a silver layer on which a pattern is printed using an electrically insulating varnish. 6. A semi-automatic recorder of radiosonde signals according to claim 1, containing a tape-driving mechanism and printing poiutons, which are controlled by electromagnets, have a relay and button supply circuit, characterized in that in order to graphically record the values of meteorological elements on a moving tape , the beginnings of the windings of electromagnets controlling the printing punches are grouped by tens in accordance with the first letters of the code and connected via relays and buttons to the positive power supply busbar, and The ends of the windings of the same electromagnets, grouped together by tens in accordance with the second letters of the code, are connected via buttons to the negative bus. 7. A semi-automatic recorder according to claim 6, characterized in that, in order to ensure short-term operation of printing punches controlled by electromagnets, the time delay relay activated at a certain amperage in the electromagnet winding is used in it. FIG. 3