Product Features
- 260KHz Ultra fast sampling speed, precise measurement of displacement changes under high-speed conditions
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- Ultra high precision, 0.05% F.S. Ultra high linear accuracy, 0.1μ M Repetitive accuracy
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- Wide spot type, focused spot type, mirror reflection type multiple sensing heads available
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- Convenient PC software PDH Navigator, easy to use for detection
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Ultra high measurement accuracy
PDH The series is equipped with high-sensitivity and high-resolution CMOS chips, which effectively improve measurement accuracy and imaging performance by increasing pixel width and quantity, optimizing optical design, and achieving ultra-high repeatability accuracy of 0.005 μ m; m. The newly developed objective lens can effectively reduce the distortion of the light spot on the receiving element and improve measurement accuracy. At the same time, the new optical design maintains the symmetry of the light spot, achieving ultra-high linear accuracy of 0.02% F.S.
| Type | Coarse target measurement (wide spot type) | Fine target measurement (focused spot type) | |||||||||||
| Model | PDH-008 | PDH-020 | PDH-050 | PDH-080 | PDH-150 | PDH-008W | PDH-020W | PDH-050W | PDH-080W | PDH-150W | PDH-400W | PDH-500W | |
| Mounting mode | Specular reflection | Diffuse reflection | Specular reflection | Diffuse reflection | |||||||||
| Reference distance | 8mm | 20mm | 50mm | 80mm | 150mm | 8mm | 20mm | 50mm | 80mm | 150mm | 400mm | 500mm | |
| Measurement range | ±0.5 mm | ±3 mm | ±10 mm | ±18 mm | ±40 mm | ±0.5 mm | ±3 mm | ±10 mm | ±18 mm | ±40 mm | ±100 mm | -250 至 +500 mm | |
| Light source | Wavelength | 655nm（Red semiconductor laser ） | |||||||||||
| Laser class | Class IIIa | ||||||||||||
| Spot diameter (at reference distance) |
Φ20 μm | Φ25 μm | Φ50 μm | Φ70 μm | Φ120 μm | 20 × 550 μm | 25 × 1400 μm | 50 × 2000 μm | 70 × 2500 μm | 120 μm × 4200 μm | 290 × 8300 μm | 300 × 9500 μm | |
| Repeatability 1 | 0.005 μm (0.001 μm) |
0.02 μm (0.01 μm) |
0.025 μm | 0.1 μm | 0.25μm | 0.005 μm (0.001 μm) |
0.02 μm (0.01 μm) |
0.025 μm | 0.1 μm | 0.25μm | 2μm | 2μm | |
| Linearity 2 | ±0.05%F.S. (F.S.=1mm) |
±0.02%F.S. (F.S.=6mm) |
±0.02%F.S. (F.S.=20mm) |
±0.02%F.S. (F.S.=36mm) |
±0.02%F.S. (F.S.=80mm) |
±0.05%F.S. (F.S.=1mm) |
±0.02%F.S. (F.S.=6mm) |
±0.02%F.S. (F.S.=20mm) |
±0.02%F.S. (F.S.=36mm) |
±0.02%F.S. (F.S.=80mm) |
±0.05%F.S. (F.S.=200mm) |
±0.1%F.S. (F.S.=700mm) |
|
| Sampling cycle | 3.8/10/20/50/100/200/500/1000 μs | 3.8/10/20/50/100/200/500/1000 μs | 20/50/100/200/500/1000 μs | ||||||||||
| Temperature fluctuation | 0.02% F.S./°C （F.S.=1 mm） |
0.01% F.S./°C （F.S.=6 mm） |
0.01% F.S./°C （F.S.=20 mm） |
0.01% F.S./°C （F.S.=36 mm） |
0.01% F.S./°C （F.S.=80 mm） |
0.02% F.S./°C （F.S.=1 mm） |
0.01% F.S./°C （F.S.=6 mm） |
0.01% F.S./°C （F.S.=20 mm） |
0.01% F.S./°C （F.S.=36 mm） |
0.01% F.S./°C （ F.S.=80 mm） |
0.01% F.S./ºC (F.S.= ±100 mm) |
0.01% F.S./ºC (F.S.= ±250 mm) |
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| Indicators | LASER indicators：RGB tri color light（Indicator light ON within the measurement range） | ||||||||||||
| Input | I/O input | Hold Value / Peak Hold / P-P Hold / Valley Hold / Avg Hold / Upload Date / Laser switch, etc | |||||||||||
| Encoder input | Differential Encoding | ||||||||||||
| Output | Analog | Analog voltage: 0~10V, Analog current: 4~20mA | |||||||||||
| I/O Output | Support NPC/PNP switching, support NO/NC switching | ||||||||||||
| RS-422 | 9.6K~256k bps | ||||||||||||
| Ethernet | 1 100Base-TX Ethernet interface | ||||||||||||
| Supply voltage | DC12~24V ±10% | ||||||||||||
| Protection circuit | Reverse supply polarity protection | ||||||||||||
| Environmental resistance | Degree of protection | IP67（ IEC ） | |||||||||||
| Ambient temperature/humidity | -10~+50 ℃/35~85% RH (No condensation) | ||||||||||||
| Storage temperature/humidity | -20~+60°C/35~85%RH (No condensation) | ||||||||||||
| Ambient illuminance | Sunlight: 10000 lux max., Incandescent lamp: 30000 lux max. | ||||||||||||
| Vibration resistance | 10 to 55 Hz (period: 1 min.) frequency, 1.5 mm double amplitude in X, Y and Z directions for two hours each | ||||||||||||
| Shock resistance | 500 m/s² acceleration (50 G approx.) in X, Y and Z directions three times each | ||||||||||||
| Material | Enclosure: Aluminum die-cast, Lens: Glass | ||||||||||||
| Notes: 1, This distance is measured by averaging 4096 readings at the reference distance. 2, This distance is obtained by measuring white matte ceramic under standard mode. |
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