Dr. Baghrat V. Melkoumian Profile

Dr. Baghrat V. Melkoumian

Docent at MIEMP

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 5 October 2007 Paper

Autonomous laser accelerometer for platforms and systems

Baghrat Melkoumian

Proceedings Volume 6736, 67360B (2007) https://doi.org/10.1117/12.737591

KEYWORDS: Resonators, Mirrors, Semiconductor lasers, Laser resonators, Prisms, Laser development, Prototyping, Navigation systems, Analog electronics, Control systems

Read Abstract +

Proceedings Article | 5 October 2007 Paper

Classical theory of autonomous laser accelerometer

Baghrat Melkoumian

Proceedings Volume 6736, 67360D (2007) https://doi.org/10.1117/12.737601

KEYWORDS: Maxwell's equations, Phase measurement, Doppler effect, Resonators, Magnetism, Chemical elements, Quantum physics, Phase velocity, Wave propagation, Navigation systems

Read Abstract +

Proceedings Article | 21 October 2005 Paper

New solutions for autonomous control and navigation

Baghrat Melkoumian

Proceedings Volume 5978, 59781Q (2005) https://doi.org/10.1117/12.614741

KEYWORDS: Gyroscopes, Navigation systems, Velocity measurements, Resonators, Control systems, Sensors, Laser resonators, Pulsed laser operation, Polarization, Receivers

Read Abstract +

Proceedings Article | 18 February 2002 Paper

Vibrosensor of new generation

Baghrat Melkoumian

Proceedings Volume 4627, (2002) https://doi.org/10.1117/12.456271

KEYWORDS: Measurement devices, Gyroscopes, Resonators, Laser resonators, Transformers, Feedback control, Prototyping, Semiconductor lasers, Sensors, Control systems

Read Abstract +

Proceedings Article | 21 August 2001 Paper

Laser accelerometer for guidance and navigation

Baghrat Melkoumian

Proceedings Volume 4365, (2001) https://doi.org/10.1117/12.438048

KEYWORDS: Resonators, Navigation systems, Sensors, Laser resonators, Receivers, Helium neon lasers, Control systems, Oscilloscopes, Polarization, Optical benches

Read Abstract +

Proceedings Article | 1 February 2001 Paper

Optodynamics effects

Baghrat Melkoumian

Proceedings Volume 4348, (2001) https://doi.org/10.1117/12.417632

KEYWORDS: Gyroscopes, Resonators, Laser resonators, Sensors, Polarization, Wavefronts, Nondestructive evaluation, Computer simulations, Differential equations, Cobalt

Read Abstract +

Proceedings Article | 25 January 2000 Paper

Laser gyro active media gas flow determination

Baghrat Melkoumian

Proceedings Volume 4064, (2000) https://doi.org/10.1117/12.375452

KEYWORDS: Gyroscopes, Chemical species, Resonators, Gas lasers, Laser resonators, Doppler effect, Sensors, Gases, Laser development, Temperature sensors

Read Abstract +

The being advantages ofthe laser gyro against the precise gyro with rotating mass are the cost efficiency and the theoretical rapidity for practical systems. There have been unavailable the relevant publications on the laser gyro's necessary precision providing and also on its rapidity and on the nonstationary systematic errors excluding in real time. on the other hand it is known that output frequency of continuous wave linear laser is establishing, even in stationary conditions, during the transition time of 20 minutes up to 3 hour for different laser types '. Thus most traditional measurements with continuous wave laser are used in stationary conditions, when the counting of output characteristics is begun after the necessary transition time is gone 2 Since the output ofring laser is proportional to the active media generation frequency, the laser gyro has the nonstationary systematic error with the same value of the transition time. The investigations have been performed would be derived in the two groups. There are the laser gyro error's "mathematical models" and so-called "dynamic compensation methods" discussed in . The "dynamic compensation methods" are based on using of the temperature-depending elements in feed back system of the output signal. The both methods require the lasting measurements of laser gyro output in the stationary conditions to define the coefficients of the error model or to determinate the characteristics ofthe temperature-depending elements. These measurements must be repeated or the parameters must be automatically tuned for any other case. So it is unreasonable. The plasma heat regime influence on the precise ring laser output is considered in this work following to The case of the heat influence on the plasma without the dimensions changing is supposed. The thin effects, as modes drag, mode competition and radiation trapping ,do not be considered in order to the more clear idea. The each component of laser active media (electron gas, ion gas, excited atoms, etc.) has its own optical properties and puts its deposit in the ring laser output instability The analysis resulted in shows that, in case of constant electron and ion concentrations and when the frequency of electron-ion collisions is comparatively low, one obtains the Fresnel drag effect with electro-neutral atoms only.

Showing 5 of 7 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years