SU113680A1 - Device for recording the height of the aircraft during aerogammasking - Google Patents

Description

The described device, designed to automatically record the flight altitude of the aircraft during aerogamming, has a potentiometer with taps built into the standard aerogammarradometer gauge, in which the displacement of the slides on the engine koplits represents the linear or logarithmic function of the flight altitude.

Until now, with aero- gograms), the intensity of gamma radiation and the altitude of the aircraft were recorded independently of one another, as a result of which the correction in the aerogammaradiometer reading for flight altitude was hampered by the office processing of the survey results.

The positive difference of the described device is that it allows you to automatically make corrections to the display of the aerogammaradiometer for the height of the flight of the aircraft in the process of shooting using a functional converter or an electron-pulse device.

FIG. 1 is a schematic diagram of a functional converter; in fig. 2 is a schematic diagram of one of the possible variants of an electron-pulse device.

Structurally, the device of the functional converter is a magnetoelectric galvanometer, C)

potentiometer Ri - Rzo with taps, dialed but the law De

h-flight altitude. A sliding contact is fixed on the arrow of the galvanometer. The galvanometer frame is connected in series with the radio altimeter indicator.

The functional converter is turned on after the JJi and Jlz count rate meter, whose output voltage is / (ii) (part

L 113680-2 -

the voltage from the residual background is compensated in the count rate meter with potentiometer R).

According to the notation (Fig. 1), we have:

Unpn. (), total

or, considering that

(h) R (h) .-, K (h),

and „,,, -KW -KI ,.

in the electron-pulse device (Fig. 2), the linear dependence ho + h can be used as a function of the reduction. The cast operation in this case is written as:

/ o / (/ g) (/ go + L).

The product / (/ g) (ho + h) can be conveniently performed by amplitude modulation of pulses from a gamma receiver / (/ g) output voltage from a radio altimeter (Lo + A) Pulses from a gamma receiver normalized by a single vibrator // 1, co counting rate (/ i) + through the cathode follower (left half of L2) is fed to the anode of the modulating lamp (the cathode follower is right half Lg). A voltage proportional to the value of ho + h is applied to the grid of the modulating lamp through the cathode follower / 74 from the radio altimeter.

Pulses with a counting rate N l (h) + fgj, whose amplitude is proportional to ho + h, are removed from the cathode resistance of the modulator and fed to the integrating cell RC (not shown). The voltage across capacitor C, defined by the ratio

and - y. (/ g, -g / 1). //G / g - 1f}} ./G/g; G / g "- / g) - a.1f (h, + fi), served on the left grid of the lamp voltmeter Lz, assembled on a balanced bridge circuit. A constant voltage is applied to the right grid of the lamp voltmeter with the cathode resistance of the lamp L

and y.1f (AO - / g).

The output current g in the diagonal of a lamp voltmeter, measured by a pointer device, is proportional to the product / (L) (ho + / g).

Subject invention

A device for recording the flight altitude of an aircraft when using an aerogamma radiometer using an aerogammaradiometer, is characterized in that, in order to automatically make corrections for the altitude in the aerogammaradiometer readings for the flight altitude in proc (ss of the survey, it was designed as a functional transducer built into the aerogamma radiometer with a potentiometer integrated with the transducer; the altitude of the aircraft, or the electron-pulse device with the modulation of the aerogammaradiometer pulses, the output voltage of the radio altimeter.