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Any kind of changes in environmental parameters of the environmental factors influencing factors listed below will result in approximately 1um error: (a) Air temperature: 1 ℃ b. Air pressure: 0.3kPa c Relative Humidity Infrared Laser Pointer: 30% in particular, vibration impact on the measurement is very large, vibration may cause the dispersion of the measured data significantly affect the repeatability of measurements. May even make the measurements can not be down. Reduction and elimination a. Try to make measurements in a heated workshop, in order to maintain a relatively stable environment. environmental parameters deviate from the standard conditions, you can use the EC10 environmental compensation unit to automatically compensate for temperature, pressure, humidity can make the above (temperature, pressure, humidity) the error is reduced to ± 1.1 um. It is compared with other kinds of laser pointers.  
Cosine error a laser beam of influencing factors with the motor axis alignment error will cause the error between the measured distance and actual moving distance, the error and (1-cos θ) is proportional to θ is the laser beam with the moving coordinate error angle between the axes. When the optical laser measurement system to adjust with the movement axis different axis, the cosine error will lead to the measuring distance is shorter than the actual movement distance, such as shown in Figure 2, the actual distance measured by the laser measurement system of Ls, while the actual movement distance Lm. The angle θ 0.167 °, is caused by the cosine error 5um / m. Figure 2. To reduce and eliminate fine-tune the calibration of the optical path in measuring the coordinates of the whole trip on the readings of signal strength as constant as possible. More time is necessary for the green laser pointers to warm up. Zumba Fitness DVD
And micro-laser head measuring reading, and thus to minimize cosine error. Abbe offset error of an impact factor if the laser beam is tuned with the specified axis parallel to the bias, the measurements in this case, the optical components offset the installation caused by the angle Games lead to Abbe partial set measurement error. The error and Lφ proportional to, where L is the offset distance, φ is the bias angle. Φ, such as.0028 °, L 100mm, caused by the Abbe offset error 5um. (2) reduction and elimination constant angle does not lead to the Abbe error, so the measurement should be tight good solid mobile optical mirrors to reduce the bias angle changes. The preheating of laser pointers is the very important process.
The laser gas site online analytical instrument can work from cross-interference of other gases. The process pressure up to 5 bar, the temperature exceeds 1600 ° C. The site online of laser gas analyzer is the optical instruments, temperature stable, single-mode diode lasers emitting laser transmitter diameter direction relative to the receiver. Diode laser at room temperature near. Traditional online (on-line) analyzers, such as infrared (IR) line analysis instrument usually from other gases composition (including dust, moisture and background composition) cross-interference, this problem in the detection of low levels of becoming more and more serious. Traditional IR line analyzer controls the broadband spectral filter. The production of laser pointers is increased to a higher level.