Shutter encoder safe full#
The full algorithm 1 position is formed by combining the coarse position (whole number of scale periods) with the phase information. An error detection and correction algorithm is then used to convert the bit sequence to the readhead's coarse absolute position. The remaining bits provide redundant information so that the correct position can be ascertained even if some of the scale is obscured. Only a quarter of these bits are required to define a unique position.
![shutter encoder safe shutter encoder safe](https://www.elovis.com/wp-content/uploads/2018/09/Lasershutter-_002-768x576.png)
This results in a 65-bit binary number corresponding to the scale pattern directly below the readhead. A correlation is then performed on the image at each of these locations to ascertain whether there is a dark line present or not. The phase information is used to locate the centre of each potential line on the scale. This phase calculation defines the short distance accuracy, resolution and noise performance of the encoder.
![shutter encoder safe shutter encoder safe](https://i.ytimg.com/vi/biM0QP-tRKI/maxresdefault.jpg)
Each image of the scale extends approximately 2 mm in the direction of measurement and the scale is designed such that in any one image there are sufficient dark lines to calculate phase accurately. a value between 0 and 30 µm, with a resolution of better than 1 nm. The first stage of the process is to calculate the phase of the image this stage is similar to that performed by incremental encoders and results in an answer that is some fraction of the fundamental scale period, i.e. If the error flag is not set then the position output is certain to be correct.Īlgorithm 1 calculates position by decoding a single image without using any information about previous positions. This means that the control system can rely on the error flag sent out by the readhead. The resulting positions are compared to decide whether to set the error flag that is appended to the position sent to the control system. Each time it receives a request, the readhead determines position by two independent methods (described below) that work by completely different principles, avoiding the risk of a common cause failure.
Shutter encoder safe series#
In use, the readhead receives a series of request signals from the host control system. RESOLUTE calculates position on demand, whereas traditional absolute encoders operate on a continuous basis. This provides increased levels of safety for end users of motion systems while simplifying the design process for the system builder. Product: Shutter Encoder, shutterencoder.The RESOLUTErange of true absolute encoders operates in a fundamentally different way from traditional absolute encoders, allowing them to output an error flag that is certain to be set if the position output is incorrect. The maker has also placed a number of preference settings on the website, with which you can quickly convert video to popular services, such as Instagram, YouTube and Vimeo. A nice ‘hidden’ option is the possibility to save video streams (from streaming websites) as a video file on the computer.
![shutter encoder safe shutter encoder safe](https://i.ytimg.com/vi/X2Uj3-B_MSo/maxresdefault.jpg)
Also when converting images you have the option to apply simple editing, such as cropping the image. It is nice that you can also shorten the material if desired. In a separate box we find further advanced functions, such as the possibility to enable the hardware acceleration of the computer itself and to complete the conversion according to a fixed profile. For example, you can manually adjust the bitrate of audio and video, but also, for example, give the file size a limit and perform the conversion based on that. You then indicate which conversion must take place and whether any post-processing (for example in the form of filters) must be applied.įor more advanced users, Shutter Encoder offers settings to customize the conversion on an individual basis. First of all you indicate which files you want to convert. Shutter Encoder is made up of a number of logically arranged planes.
![shutter encoder safe shutter encoder safe](https://www.filecroco.com/wp-content/uploads/2020/08/shutter-encoder-2.jpg)
It is especially notable for the large amount of supported file formats. This program is made to convert both image and sound to other formats.