LDM41 A Datasheet
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LDM 41/42 A Laser Distance Measurement Sensor Angewandte Sensortechnik Theory of Operation The LDM 41/42 A Laser Distance Measurement Sensor is designed for mobile and stationary distance measurement in a industrial environment. The LDM 41/42 A works based on comparative phase measurement. To achieve this, it emits visible laser beams in different frequencies. The target being measured returns diffusely reflected light that is subsequently compared with a reference signal. Finally, a microprocessor uses the recorded phase shift to calculate a required distance with mm accuracy. The sensor LDM 41 A distinguishes itself through a high precision as well as a big independence of the surface of the measured object. The LDM 42 A is design for fast measurement on a white target. The red, well visible laser beam allows a simple alignment. Applications Supervision of crane and conveyors Distance and position measurement Expletive-stand-measurement Supervision of security-relevant parts Supervision of walking beam systems / stroke length measurement / position of lifts Position control Diameter measurement of coils and rolls Characteristics 1 millimetre precise measurement at various surfaces (LDM 42 A only for white surface) long range reflector-less distance measurement, with additional reflectors on the object over 100m 1 with additional reflectors mounted onto target high availability under in the high temperature area with high precision big supply voltage range 10 V until 30 V DC optional heating (24 W at 24 V operating voltage, option /h) low risk use because of laser class 2 simple alignment with a visible laser class bi-directional data-interface, switching and analogue output simple setup for parameter with a PC or laptop measured values are displayed in meters, decimetre, centimetre, feet, inch... and different resolutions due to free scaling stable and simple to installing housing with protection IP 65 various accessories; device versions with field bus connection e.g. 3M, self adhesive foil matte white, or with greater distance with reflective foil type 3290 ASTECH Angewandte Sensortechnik GmbH No-contact measurement techniques for length, width, distance, position, velocity; laser; CCD-cameras Schonenfahrerstr. 5, D-18057 Rostock, Germany Phone +49 381 / 44073-0 FAX 0381 / 44073-20 e-mail info@astech.de Internet www.astech.de

LDM 41/42 A Laser Distance Measurement Sensor Angewandte Sensortechnik Technical Data Application 2 Measuring range Measuring accuracy Distance-measurement for solid surfaces without reflector 0.1 m up to 30 m with natural surfaces, more than 100 m achievable, depending on target reflectance or with additional reflectors 4 2 mm under defined measuring conditions 3 mm (+15 °C up to +30 °C), 5 mm (-10 °C up to +50 °C) 0.1 mm, user scalable, standard 1mm 0.5 mm 0.24 up to 6 s setup or auto mode DT 0.1 s mode DW at white surface 20 ms mode DX at white surface (only LDM 42 A) Laser Class 2 under...