SU1578592A1 - Recorder of water movement speed in soil - Google Patents

Abstract

The invention relates to soil science, hydrophysics, hydrology and agriculture, and is intended to record on the recorder tape the moment of passage of the water front in the soil and then calculate its speed. The aim of the invention is to improve the accuracy of determining the speed of movement of a fluid front. At least another pair of electrodes and a relay unit are added to the recorder. Each pair of electrodes is connected to the relay unit through the contacts of the subsequent relay. The first one along the motion of the relay is configured to turn on when the electrodes of an odd relay are closed. 1 il.

Description

The invention relates to soil science, hydrophysics, hydrology and agriculture, and is intended to record on the recorder tape the moment of passage of the water front in the soil and then calculate its speed.

The aim of the invention is to improve the accuracy of determining the speed of movement of a fluid front.

FIG. A flow chart of the recorder for the rate of movement of water in the ve is presented; 2 is a schematic diagram of its electrical part.

The recorder consists of a clock mechanism 1, on the drum of which a paper tape is put on, arrows 2 with a feather, relay 3, springs 4, relay block 5, electrodes 6 installed in the soil at different depths, and the enable button 7.

The electric part of the recorder consists of a relay 8-16, contacts 17-25, a button 26, a contact 27, a relay 28 and a contact 29.

The recorder works as follows.

The device is turned on by pressing button 26, as a result of which the current from the power source passes through the closed contacts of relays 16 and 27, button 26 and relay 28 and causes it to operate. Relay 28 is self-blocking, and when the button 26 is released, the device remains in the on state. Water passing through the first pair of electrodes triggers the relay 7, on whose bark the solder is attached to the arrow with a pen, as a result of which: a step appears on the recorder tape. When water, as a result of its further movement, zmyklet barely (L

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blowing a pair of electrodes, relay 8 is activated.

Since relay 7 is included in the circuit through closed contacts 8-17, the last winding of relay 7 de-energizes and the recording appears as a step on the tape that was obtained during the first operation of relay 7. When water passes through the next pair the electrodes triggers relay 9, as a result of which the relay 8 circuit breaks, consequently, relay 7 is switched on and a step is recorded on the tape, similar to the one in the first case,

When water passes through the next pair of electrodes, the relay switches 10, and as a result, the relay circuit 9 and 7 breaks, as the latter is switched on via contacts 17. Then everything happens in the same way. Upon subsequent closure of each odd pair of electrodes with water, relay 17 operates, and when the even pair closes, it switches off.

Thus, on the recorder tape, a step recording of the recording of the moments of the passage of the water through different soil depths appears.

When the last pair of electrodes is closed, the relay 25 is triggered, the relay 7 is disconnected, as well as the circuit that supplies power to the circuit, as a result of which the winding of the relay 23 is de-energized and the circuit is opened.

Claims (1)

Invention Formula A recorder of the speed of water movement in the soil, including a pair of electrodes connected to a recorder, characterized in that, in order to improve the accuracy of determining the speed of movement of the fluid front, at least another pair of electrodes and a relay unit are added to the recorder, with each pair of electrodes connected to the relay unit through the contacts of the subsequent relay, the first one in the course of the movement of the relay is configured to turn on when the electrodes of the relay are closed. 1