SU518639A1 - Instrument for measuring body weight in zero gravity - Google Patents

Description

(54) DEVICE FOR MEASUREMENT OF BODY WEIGHT V IN HEIGHTLESS

The drum 4 is attached and is akin to honor attached to it, and the ends of this plate are attached to opposite horses) M axes 2. The axle of the spring 4 sub axia is with the rotor of the rotation sensor 6 and the rotor of the engine 7. The plate of the rotation sensor 8 and rotor tohoheiyerato 9. Bearing supports 3 are fixed to wrong 10, which are attached to the body of the spacecraft, the stator windings of the rotation sensors are connected to the amplifier 11, the signal from which is applied to the control windings of the engine 7, the winding of the tacho generator 9 to It is connected to the input of the front-end driver 12, the output of which is connected to the counter input 13. The start-up terminal 14 is mounted on the guide 10.

The principle of operation of the device is in the following order.

 actuation of the start-up clamp 14 under the action of the moment of the drum 4 with the spiral spring having a constant tension r, the spring tape 5, twisting on the drum, progressively sweeps the plate 2 | rigidly connected with the chair 1, on which the body is fixed, the mass of which is measured. When the drum 4 rotates, there is a mismatch from the initial position between the angle of rotation of the spring 4 axis and the angle of rotation of the drum 4. A signal proportional to this mismatch, measured by sensors 6 and 8, is fed to the input of the amplifier 111, the output: is connected to the control windings of the i7 engine . The rotor of the engine 7 is rotated in the direction compensating for this mismatch. After the end of the transition process, the angle of twist1, the Coil spring remains constant-: Consequently, the movement of the chair with the body (Occurs under the action of constant force: The process of measuring the mass deforms the body, which is measured by the axopenepmopoM O K / prjonio, proggortsion shshngo, arrives at the form 12. When dgh: slowing down for 1 hour, the driver 12 generates a turn on signal for counter 13, the value of C, 1 of the rush is chosen so that by the time |. (see fig. 2) in the object and. chmero.sh transient ended processes, the termination of which rises to the moment ig, when the speed of the movement reaches the value Vg After the object reaches the measurement, the speed 1, the former 12, turns off the counter 13. With this display of the counter: 13 are proportional to the mass of the tena, which in this case is uniquely determined time during which the specified increment of speed occurs.

 p is the calibrated value of force; Y, -v, is a given increment of speed.

When selected, is determined by the pho emul-t Ajj -ly.

Claims (1)

Invention Formula A device for measuring body weight in zero gravity, containing a chair, a spring, bearing supports and a computing device, characterized in that, in order to improve the measurement accuracy of classes of non-rigid bodies, the selector is equipped with rotation sensors, an engine and an amplifier, and the stator windings of the sensors are connected to the amplifier through motor control windings, the rotor of which is connected to one end of the spring, and calculates:; the tel device is made in the form of a tachogenerator, the rotor of which is connected to the other end of the spring and the output is connected E windings through the generator, to the counter time is calibrated in units of masses. FIG. one V, 0 Ai l io i t2 FIG. g