• Latest optical design and processing technology
The standard LDV technology of optics, electronics and signal processing goes back to early 1980’s. Most commercial systems still use the same old technologies. MSE miniLDV uses the latest cutting edge and patented optical design and makes use of the latest processing hardware and software resulting in very accurate, very small and very portable opto-electronic system.
• Long life diode lasers
MSE uses solid state high power diode lasers that have a life expectancy of over 10,000 hours. The life expectancy of gas lasers presently used in other LDV system is about 1000 hours. The power consumption of diode lasers is much less than other types of lasers resulting in extremely low power sensors.
• The laser(s) are an integral part of miniLDV probes
MSE integrates the laser permanently into the miniLDV probe. This results in an optical probe that never needs alignment or calibration by the user. The unique design of the miniLDV is such that the calibration of the probe remains constant for the entire life of the probe.
• Diode lasers are used without the need for temperature control
It is well known that wavelength of diode lasers vary over 1% with changing temperature. In a standard LDV configuration, it is necessary to keep the laser temperature constant. This adds to the cost, the size, and the power consumption of the system. Our patented optical arrangement is such that the miniLDV calibration constant is independent of the wavelength of the laser. This results in a more accurate velocity sensor and a smaller probe geometry consuming less power.
• The two beams of the miniLDV are always co-located
In the standard LDV dual beam design, the two laser beams are normally positioned via steering mirrors to allow for coincidence at the probe volume. The mirrors may go out of alignment due to vibration or thermal loading, resulting in reduced performance or complete failure of the probe. Our patented optical arrangement is such that we do not use steering mirrors and the two laser beams are intrinsically 100% coincident. This results in much more rugged probe design and optimum performance at all temperatures (limited by the operation temperatures of the laser) and at vibration levels well above the vibration levels of other LDV systems.