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.

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Encoders for Brushless Motor Commutation

The process of steering current through the appropriate motor windings in order to produce an output torque is called commutation. Before start-up permanent-magnet three-phase motors must have an absolute position value available for electrical commutation.

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DID YOU KNOW… – HEIDENHAIN DIEFFENBACHER

…that two HEIDENHAIN controls are an integral part of an unusual deep-hole gun drill machine now in place at Dieffenbacher North America hydraulic press manufacturer.

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The TNC 640 l high-end control for milling and turning

HEIDENHAIN is presenting the new TNC 640 at IMTS 2012. For the first time, milling and turning are combined in one TNC. The new TNC 640 is designed for machine tools capable of multi-operation machining.

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Importance of Mounting Tolerances for Modular Encoders

Modular encoders are very susceptible to mounting misalignment. Since modular encoders have no bearing, they rely solely on the accuracy of the motor and encoder manufacturing process.

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What Influences Accuracy of Rotary Tables?

When determining the influencing factors of accuracy on a rotary table, the first thing would be to look at the mechanics of the table itself.

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Exposed Linear Encoders for Direct Drives

Linear motors have made irreversible inroads into highly dynamic applications such as manufacturing and measuring equipment in the semiconductor industry, in PCB assembly machines, textile machines and in automation.

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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.

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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.

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