Linear encoder

Linear encoder

A linear encoder is a sensor, transducer or readhead paired with a scale that encodes position. The sensor reads the scale in order to convert the encoded position into an analog or digital signal, which can then be decoded into position by a digital readout (DRO). Motion can be determined by change in position over time. Linear encoder technologies include capacitive, inductive, eddy current, magnetic, and optical. Optical technologies include shadow, self imaging and interferometric. Linear encoders are used in metrology instruments and high precision machining tools ranging from digital calipers to coordinate measuring machines.

Book

* David S. Nyce: "Linear Position Sensors: Theory and Application", New Jersey, John Wiley & Sons Inc. (2003)

Resources

How do linear scales work -

* [http://www.auto-met.com/heidenhain/scale_pres.htm Flash presentation on How it Works]

ee also

* Encoder
* Rotary encoder


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Encoder — An encoder is a device used to change a signal (such as a bitstream) or data into a code. The code may serve any of a number of purposes such as compressing information for transmission or storage, encrypting or adding redundancies to the input… …   Wikipedia

  • Linear stage — A linear stage or translation stage is a component of a motion system used to restrict an object to a single axis of motion. The term linear slide is often used interchangeably with linear stage , though technically linear slide refers to a… …   Wikipedia

  • Linear actuator — TOC A linear actuator is a device that develops force and motion, from an available energy source, in a linear manner, as opposed to rotationally like an electric motor. There are various methods of achieving this linear motion. Several different …   Wikipedia

  • Rotary encoder — A rotary encoder, also called a shaft encoder, is an electro mechanical device used to convert the angular position of a shaft or axle to an analog or digital code, making it an angle transducer. These devices are used in industrial controls,… …   Wikipedia

  • Code-excited linear prediction — (CELP) is a speech coding algorithm originally proposed by M.R. Schroeder and B.S. Atal in 1985. At the time, it provided significantly better quality than existing low bit rate algorithms, such as residual excited linear prediction and linear… …   Wikipedia

  • Pseudorandom encoder — A pseudorandom encoder is an electro mechanical device used for measuring distance and finding position. It is different from the conventional absolute and incremental encoder in its disk pattern, which gives it aspects of the other two… …   Wikipedia

  • Auto-encoder — An auto encoder is an artificial neural network used for learning efficient codings.The aim of an auto encoder is to learn a compressed representation (encoding) for a set of data.This means it is being used for dimensionality reduction. More… …   Wikipedia

  • Code excited linear prediction — (CELP) is a speech coding algorithm originally proposed by M.R. Schroeder and B.S. Atal in 1985. At the time, it provided significantly better quality than existing low bit rate algorithms, such as RELP and LPC vocoders (e.g. FS 1015). Along with …   Wikipedia

  • Digital read out — DRO providing a three axis display with pitch circle calculator, diameter/radius conversion, absolute and incremental toggle, and inch metric toggle A digital read out (DRO) is a small computer (display unit) usually with an integrated keyboard… …   Wikipedia

  • Caliper — For other uses, see Caliper (disambiguation). A vernier caliper …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”