LVDTs versus Optical Scanning
Gaging fixtures are a staple in many metrology labs and assembly lines. They offer a fast, easy, and inexpensive way to determine if a measured part passes tolerances. Two popular tools that are found in many fixtures are HEIDENHAIN length gages and Linear Variable Differential Transformers (LVDT). While LVDTs and HEIDENHAIN length gages are both used for the same purpose, the way they operate is fundamentally different.
Influence of Position Measurement on Accuracy in 5-Axis Machining
High strength and low weight are essential for the aeronautics and space industry. Integral construction has established itself as the way to minimize the weight of “airborne” parts: components with complex structure are manufactured completely from a single blank. Metal removal levels can be as high as 95 %. This high “buy-to-fly” rate leads to high costs for the raw material of the blanks.
The New Generation of Angle Encoders Come of Age
HEIDENHAIN’s angle encoders with integral bearing have long been the standard for applications where angular measurement in the range of a few angular seconds is necessary. The encoders are characterized by their simple mounting and very high accuracy.