FIELD: physics, instrumentation technology.
SUBSTANCE: invention relates to laser Doppler measuring devices. A laser device for measuring velocity and/or displacement of small-size objects in limited-access places includes a single-frequency semiconductor laser with wavelength of 1064 nm and an oscillation line width of not more than 3 MHz. The device also includes an optical isolator, a fibre amplifier with a pumping laser diode laser, an optical radiation splitter performing the function of a beam splitter. The splitter is connected to a connector with a corner chip which performs the function of a weakly reflective mirror, a collimator with a beam diameter of 0.8-1.2 mm and an optical receiver. The output of the receiver is connected to the input of an oscilloscope which is connected to a computer via a USB interface.
EFFECT: invention provides a long (about 100 m) coherence length.
2 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DOPPLER FIBRE-OPTIC DEVICE OF PROJECTILE INITIAL SPEED | 2019 |
|
RU2727778C1 |
| SIMULATION AND TESTING COMPLEX FOR LASER BALLISTIC MEASURING SYSTEM | 2020 |
|
RU2766534C2 |
| LASER FIBER-OPTIC METER OF INITIAL VELOCITY OF PROJECTILE | 2020 |
|
RU2766535C1 |
| POLARIZATION SYSTEM FOR MEASURING PARAMETERS OF PROJECTILE MOVEMENT AROUND THE BARREL OF A RIFLED ARTILLERY GUN | 2023 |
|
RU2805642C1 |
| SHOOTING TRAINING COMPLEX | 2023 |
|
RU2813346C1 |
| SMALL ARMS | 2000 |
|
RU2185585C2 |
| DEVICE OF DOPPLER VELOCITY MEASUREMENT BASED ON INTERFEROMETER WITH FIBER INPUT OF RADIATION | 2022 |
|
RU2788568C1 |
| ROBOTIC COMBAT SYSTEM | 2023 |
|
RU2819942C1 |
| WAY OF MEASURING THE INITIAL VELOCITY OF HIGH-SPEED PROJECTILES WITH A LASER FIBRE-OPTIC SYSTEM | 2022 |
|
RU2790640C1 |
| PROCEDURE MEASURING VELOCITY OF CONDUCTING BULLET | 2001 |
|
RU2184978C1 |
