| 工作原理 | 增量式 |
|---|---|
| 类型 | 工业编码器 |
| 读出方式 | 接触式 |
| 品牌 | Pretec |
| 型号 | 2940 |
瑞士PRETEC 电动测头可以很容易地适用于市场的许多电子测量仪器（即TESA，霍梅尔，等等）通过更换在接头内部的可更换连接器即可。
这个装置是基于我们瑞士在电动测头制造的长期经验下。即使在恶劣条件下也能保证了探头的测量重复性好。
标准电动侧头的本体尺寸为φ8-h6X80mm 镀铬的硬质合金，球轴承导向伸缩。另外一个滚子轴承的锁住测头，以防止发生扭曲变形。
技术参数
| |||||||||
2940 | 2921 | 2922 | 2924 | 2928 | 2936 | 2970 | 2952 | ||
Measuring range A1 | ± 2 mm | ± 0.8 mm | ± 1 mm | ± 1 mm | ± 1 mm | ± 0.5 mm | ± 3 mm | ± 1 mm | |
Working travel A2 | 2.25mm | 0.8...1.1 | 1.1...1.2 | 1.1...1.3 | 1.1...1.3 | 1.1...1.3 | 3.5 mm fix | 1.05...1.1 | |
Overall travel A3 | 4.5 mm | 3 mm | 3 mm | 3 mm | 3 mm | 3 mm | 3 mm | 3 mm | |
Repeatability | 0.02 μm | 0.02 μm | 0.02 μm | 0.02 μm | 0.02 μm | 0.02 μm | 0.02 μm | 0.02 μm | |
Linearity typ | ± 0.2% | ± 0.3% | ± 0.3% | ± 0.3% | ± 0.3% | ± 1% | ± 2% | ± 0.3% | |
Measuring force on zeropoint | 0.45...0.75N | 0.6...1.0N | 0.45...0.75N | 0.45...0.75N | 0.45...0.75N | 0.8...1.2N | 0.8...1.2N | 0-0.25N | |
Application | Universal | Splash Waterproof | Vacuum lifter | Waterproof | Radial cable entry | Small | Large measuring range | Small measuring force | |
Protection | IP 64 | IP 66 | IP 64 | IP 65 | IP 64 | IP 50 | IP 64 | IP 50 | |
Guiding of measuring pin | Ball bearing | Ball bearing | Ball bearing | Ball bearing | Ball bearing | Ball bearing | Ball bearing | Spring | |
Cable | 2 m | 2 m | 2 m | 2 m | 2 m | 2 m | 2 m | 2 m | |
Connector | 5 pin / M14 | 5 pin / M14 | 5 pin / M14 | 5 pin / M14 | 5 pin / M14 | 5 pin / M14 | 5 pin / M14 | 5 pin/M14 | |
