Due to the fact that the setup of the emitter and receiver are similar for the runtime and phase shift measurement methods, these methods and consequently, also their advantages, can be combined well.
Laser distance sensors in the LDI series enable precisely that. With a measurement range of 500 m, the sensors achieve greater distances than all other sensors in their class. At the same time, they are not only extremely accurate with a linearity of up to ± 1 mm and a measurement frequency of 50 Hz but also comparatively fast. Their repeat accuracy of merely ±0.3 mm is even more impressive.
A reflective foil, which provides a high degree of reflection, is attached to the object of measurement, to utilize the full range of the LDI laser sensor. If the full range is not required for the application, the measurement can also be conducted on other surfaces; this reduces the measurement range to 100 m. At the same time, the laser sensor also exhibits a very good performance on difficult surfaces. Even hot surfaces such as those found in the steel industry are not a problem for the LDI. Furthermore, the small housing (140 mm x 78 mm x 48 mm) and the large selection of output signals (0...20 mA, RS232, RS422, RS485, SSI, ProfiNet, EtherNet and EtherCAT) enable easy installation and system connection for a multitude of applications.
Sample applications of these measurement methods can be found on our laser sensor application page.
Further sensors that utilize these methods can be found on our laser sensors product page.