SU1324642A1 - Tremometer - Google Patents

Abstract

. The invention relates to medical technology and may be. used in psychophysiological research. Human condition to determine the stability of the hand. The purpose of the invention is to increase the reliability of measurement. The tremometer contains a motion sensor 2, a timer 12, a key 8 of the recorder 10. In order to increase the accuracy of the tremor measurement by registering an integral estimate of deviations from the initial position, a differential amplifier 6, a detector 7, a position indicator 11, an integrator 9 and a generator 1 are inserted, the sensor 2 movement consists of two fixed plates 3, located between the movable plate 4 and two resistors 5. 1 Il. CO C 4 O) 4; Yu

Description

The invention relates to medical technology and can be used in psychophysiological studies of the human condition to determine the stability of the hand.

The purpose of the invention is to increase the reliability of tremor measurement by registering an integral estimate of deviations from the initial position.

A tremometer diagram is presented on the h-report.

The tremometer contains a generator 1, a sensor 2 movements, including dvonepodvizhnymi plate 3, podnavlshuyu plate 4, fixed on the hand of the subject, and two slashes of heat 5, connected in series differential amplifier 6, detector 7, key 8, integrator 9, recorder 10, position indicator 11.

YU

- 15

by gram The position indicator 11, in the simplest case, a pointer device, indicates to the subject the presence and magnitude of the deviation of his hand from the predetermined position. The test subject includes keeping the readings of the position indicator 11 at the zero mark. When he masters the task, the experimenter switches on timer 12, which opens the key 8 and connects the output of the detector 7 to the input of the integrator 9 for a set time. At the end of the test, timer 12 opens the key 8, and the measurement result, quantitatively proportional to

the mismatch area of the tremor curve from the zero line is read from the recorder 10, which is connected to the output of the detector 7, and 20, in the simplest case, switch-timer 12, the output of which is connected to the device, to the control input of the key 8. When using the integral

The device works as follows.

The subject fixes on the hand a movable plate of the sensor 2 engine

the principle of tremor signal processing extends the tremor measurement range with large and small amplitudes, the loss of useful information from the original signal is significantly reduced, the tremor measurement accuracy increases, and the circuitry is greatly simplified;

connected to the output of the generator 1 (G 100–200 kHz) and places the CE in a fixed plate — 3 sensors of 2 motions. As a result, an alternating current bridge is formed, consisting of two resistors 5 and two capacitors formed by a mobile 4 and fixed 3 plates. A generator 1 is turned on in one of the bridge diagonals, and another, measuring, is connected to the inputs of the differential amplifier 6.

In the case when the movable plate of the motion sensor 2 is at equal distance from the fixed, the capacitances of both capacitors are equal, the bridge is balanced, and the signal from the measuring diagonal is zero. At from

changes in the position of the movable plate 4 relative to the average position due to trembling hands of the tested capacitor capacity change, and one of them increases, and the other decreases, and in the measuring diagonal of the bridge, a mismatch signal is received, the protonality of the deviation from the average position Differentaren

social amplifier 6 boosts sig

This detector, and detector 7, selects its envelope, which is itself tremor

.

YU

15

by gram The position indicator 11, in the simplest case, a pointer device, indicates to the subject the presence and magnitude of the deviation of his hand from the predetermined position. The test subject includes keeping the readings of the position indicator 11 at the zero mark. When he masters the task, the experimenter switches on timer 12, which opens the key 8 and connects the output of the detector 7 to the input of the integrator 9 for a set time. At the end of the test, timer 12 opens the key 8, and the measurement result, quantitatively proportional to

the principle of tremor signal processing extends the tremor measurement range with large and small amplitudes, the loss of useful information from the original signal is significantly reduced, the tremor measurement accuracy increases, and the circuitry is greatly simplified;

Claims (1)

Invention Formula 40 -50 55 A tremometer containing a motion sensor 35, a timer, a key and a recorder, characterized in that, in order to increase the reliability of the measurement of the tremor by registering an integral estimate of deviations from the initial position, a differential amplifier, a detector, a position indicator, an integrator and a generator are inserted into it. The motion sensor consists of two fixed plates, a movable plate between them and two resistors, while the movable plate attached to the test subject’s brush is connected to the generator output, and Moving plates - with the inputs of a differential amplifier, the output of which is connected to the input of the detector, whose input is connected to the position indicator inputs and a serially connected key, integrator and recorder, the timer output is connected to the control input of the key.