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| | | Technical datasheet | | |
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| | | Metrological considerations To illustrate the accuracies that can be reached with the MHS are given further measuring diagrams of a system WMI-101-1024 (see brochure or www.amo-gmbh.com) which is a standard angle measuring system with a grating ring of about 326 mm diameter and an accuracy of +/-6" for a standard single head encoder under ideal mounting conditions, that means no eccentricity. | | |
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| | | Standard single head encoder | | |
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| | | 15 10 | | |
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| | | 5 | | |
| | | o I/I | | |
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| | | 0 | | |
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| | | 2 o | | |
| | | -5 | | |
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| | | -10 | | |
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| | | -15 | | |
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| | | 360 | | |
| | | 45 90 135 180 225 270 315 position [degree] | | |
| | | 0 | | |
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| | | Standard single head encoder, measuring flange mounted with an eccentricity of 10um leads to an error of +/- 14 ". | | |
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| | | Dual head encoder system MHS-21x | | |
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| | | 15 | | |
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| | | 10 | | |
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| | | 5 | | |
| | | o e s ■Sa | | |
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| | | 0 | | |
| | | hA/" | | |
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| | | I | | |
| | | -5 | | |
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| | | -10 | | |
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| | | -15 | | |
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| | | 45 90 135 180 225 270 315 360] position [degree] | | |
| | | 0 | | |
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| | | Compensation of eccentricity and a 2 times higher accuracy of +/- 3,0" compared with the standard single head encoder as shown above. | | |
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| | | DB_MHS-2xx_EN_20080220.doc | | Technical data are subject to change without notice | | 3 von 12 | | |
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