SU1478055A1 - Method of determining actual sluggishness of thermal salt probe temperature meter - Google Patents

Abstract

The invention relates to a measuring technique and can be used in oceanography when conducting hydrophysical studies. The purpose of the invention is to improve the accuracy of determining the actual inertia of the temperature gauge of the thermo solenoid. The thermosealing probe in the sounding mode is immersed and lifted through the temperature jump layer, and the flow direction is set by changing the orientation of the thermoconsole on the cable 3. With the help of the bracket 6, the probe is attached to the breaker 5 mounted on the cable 3

Then, the thermo-solenoid is immersed by etching the cable-cable 3 at a constant speed, and the subsequent ascent. At the end of the ascent, the thermoseasond is reoriented by 180 °. To do this, drop the weight of the messenger 4, which, reaching the switch 5, causes it to fire. Then a second immersion and lift cycle is performed. Temperature and salinity are determined. From the data obtained, the curves are plotted and the actual inertia of the temperature meter is determined by formulas. Formulas are given. 3 il.

Description

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The invention relates to a measurement technique and can be used in oceanography for conducting hydrophysical studies. The purpose of the invention is to improve the accuracy of determining the actual inertia of the temperature meter at reduced operating costs.

Figure 1 shows a graph of the change in the depth of a thermo solenoid; figure 2 - flow patterns of the measuring sensor unit; on fig.Z - thermal co-probe during reorientation.

Thermosealance contains container 1 with measuring equipment, unit 2 of measuring sensors, cable-cable 3, messenger weight 4, breaker 5, bracket 6.

In order to measure the actual inertia under real conditions of exploitation, it is necessary to act on the thermo-laze with a temperature jump and a streamlined flow in a certain direction, which can be carried out as follows. The thermosealing probe in the sounding mode is immersed and lifted through the temperature jump layer, and the ambient flow direction is set by changing the orientation of the thermo solenoid on the cable 3. For this, using a bracket 6 (FIG. cable 3. Then, the thermo-solenoid is immersed (line 1, Fig. 1), the cable-cable 3 is etched at a constant speed. The etching rate ((loading) is set the same as during sounding in normal mode during operation termosolezo house hydrological stations. Upon reaching depth h, wherein the composition is 250-300 m (lower layer evap Nogo jump), dipping was stopped and the derivatives t rise, the lifting speed is set to dipping speed.

At the end of the climb (H 0)

reorientation of the thermomoond for 180. To do this, throw the weight of the messenger 4 (Fig.Z), which, reaching the switch 5 causes it to fire. As a result, the thermosol-55 probe under the action of its own weight is reoriented by 180 to the second operating position (Fig. 3), at which the second cycle is performed.

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to the depth of H and rise (), carried it out at the same speed as the first. In the first and second cycles, the temperature, relative electrical conductivity and pressure are measured. The immersion rate is determined by the increment of the immersion depth per unit time. As a result of these operations, two pairs of measured parameters are obtained, corresponding to different operating modes of operation (sensing, towing) and the same flow conditions. Thus, 1 and 4 (Fig. 2) correspond to the conditions for the flow around the thermo solenoid (container

1s measuring equipment unit

2 measuring sensors) in the operating mode of towing, and 2 and 3 (figure 2) - in the mode of sounding. According to T

and S for each mode builds TS-curves and determine the actual inertia-jness of the temperature meter using the following formulas: for towing mode,

,four

2K2s

Mv4 + v;

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0

for probing mode 2K1L

K, (V, + vl

,)

 0

where to and to

but

TO

coefficients determined by the least squares method from TS curves constructed from measurement data 1, 4 and 2,

3 (FIG. I), respectively;

the coefficient that determines the error in calculating the salinity as a function of temperature (line 1,3);

dive and lift speeds.

Thus, according to the proposed method, the determination of the actual inertia of the temperature gauge is carried out in compliance with the same flow conditions of the temperature gauge for different operating modes. Thus, for the sounding mode, the measurement error due to the influence of the temperature of the thermo-solenoid when measuring the temperature distribution during the rise of V, and V, is completely eliminated.

In addition, measurement of the actual inertia of the temperature meter for the towing mode is carried out in the drift of the vessel, ensuring that the thermo-seat is properly oriented (flow conditions of the sensor unit). This is possible due to the fact that the same dynamic measurement error (assuming the inertia constancy of the temperature meter) can be obtained with small gradients of the temperature field and high velocities of the meter in it (which takes place when towing) or with large field gradients temperature, but low speeds of movement of the meter in it (which occurs when probing). This makes it possible to replace the operation of determining the actual inertia of the temperature gauge when towing with the operation of determining the actual inertia of sounding. Thus, the correctness of the measurement of the actual inertia of the temperature meter is ensured by creating the same flow conditions, corresponding spinning, towing and pain to vertical temperature gradients that always take place in a stratified ocean.

Claims (1)

Invention Formula The method of determining the actual inertia of the temperature gauge of the thermoseason, which consists in probing the thermoseasonable at a constant speed through the temperature jump layer during one cycle of its immersion and rise, measuring the temperature, electrical conductivity and pressure, and determining the measured salinity and actual inertia, which , in order to increase accuracy while reducing operating costs, reorient the thermal-coil by 180 ° relative to the first measurement cycle and in addition, the electrical conductivity and pressure in the second sensing cycle are measured, and the actual inertia is determined for the towing mode from the data of: loaded in the first cycle and lifting in the second cycle, and for the sensing mode - according to the immersion data in the second cycle and lifting in the first cycle. 1 FIG. g