Q: How much power can a laser power meter measure?
A: The laser photoelectric laser power meter covers 10nW to 150kW, a full 13 orders of magnitude! 5 power segments: Nava-100 milliwatt (HS series); milliwatt-watt (natural convection heat dissipation); ten-watt-100 watt (air cooling); kilowatt (water cooling); 10,000 watt (water cooling + patented beam expansion technology, absorption rate of 99.86%).
Q: What parameters do you need to select a laser power meter?
A: 5 core parameters: ① Power range (the upper limit of the range is 1.2 - 1.5 times the actual power);② Wavelength response (covering the laser wavelength);③ Power density (not exceeding the probe damage threshold);④ Response speed (continuous or pulse); ④ Damage threshold (reserve 2-3 times safety factor).
Q: How should the selection range be determined? What's wrong with being too big or too small?
A: The range is too large → the signal is weak, the noise is high, and the measurement is inaccurate; the range is too small → the probe is burned directly as soon as the laser is turned on. The best measurement value falls in the range of 20% to 80% of the range. Example: For actual 1000W, it is recommended to choose the range of 1500W-2000W.
Q: How to select corresponding products for different power segments?
A: ≤ 300mW: HS300-D10 (sensitivity 1pW); 5W-50W: 5W/15W/30W/50W natural convection type; 150W-1600W: F series air-cooled;1.5kW-10kW: 1500ZC/2000ZC water-cooled series;≥ 15kW: 15K-150K patented beam expansion series (absorption rate 99.86%, damage threshold 20kW/cm²).
Q: How to divide laser power levels?
A： Milliwatt level (mW): Daily office, optical communications--Class 1-3R; Watt level (1- 10W): small marking, laboratory--Class 3B; 100W level (10- 100W): cutting thin materials, medical beauty--Class 4; Kilt level (1- 10kW): thick plate cutting and welding--Class 4 fully enclosed; Ten Thousand Watt level (10kW +): ultra-thick plate, aviation, national defense--Class 4 professional protection.
Q: What problems will happen if you only look at the power and not the spot size?
A: Power density = power ÷ spot area. Similarly, the power density of 1000W with 10mm spot is 25 times that of 50mm spot! The total power does not exceed the range, but the light spot is too small and the energy is too concentrated, which instantly burns the probe. The spot size must also be matched.
