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| | | Optical Parallels SERIES 157 | | |
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| | | FEATURES • Designed to inspect parallelism and flatness • Each set consists of 4 thicknesses, of measuring faces of micrometers. • Supplied with fitted carrying case. | | |
| | | Technical Data | | |
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| | | Flatness: 0.1pm Parallelism: 0.2pm Diameter: 30mm | | |
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| | | Parallelism Check between Measuring Faces by Means of Interference Fringe Produced by an Optical Parallel The parallelism between the measuring faces can be determined as follows; wring the optical parallel to the anvil and observe the number of interference fringes produced on the spindle side under the measuring force of the micrometers. The parallelism is about 1pm (0.32pm x3 = 0.96pm). Fringe on the anvil side must not be more than one. | | |
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| | | SPECIFICATIONS | | |
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| | | Inch | | |
| | | Metric | | |
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| | | | | | | | | | | | | | Range of micrometer to be checked | Order No. | Assortment of parallels (Thickness of parallel) | Range of micrometer to be checked | Order No. | Assortment of parallels (Thickness of parallel) | | | | 0-25mm | 157-903 | 12.00,12.12,12.25, 12.37mm | 0-1" | 157-901 | .5000", .5062", .5125", .5187" | | | | 25-50mm | 157-904 | 25.00,25.12,25.25, 25.37mm | 1-2" | 157-902 | 1.0000", 1.0062", 1.0125", 1.0187" | | | | | | | | | | | | | |
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| | | SERIES 158 | | |
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| | | FEATURES • Used for inspecting the flatness of micrometer's or gauge block's measuring faces with high accuracy. | | |
| | | Flatness Check of Measuring Faces Using Interference Fringe Pattern Produced by an Optical Flat | | |
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| | | SPECIFICATIONS | | |
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| | | | | | | | | | | | | Flatness | Order No. | Diameter/Thickness Flatness | Order No. | Diameter/Thickness | | | | 0.2pm | 158-117 | 45mm/12mm .000004" | 158-122 | 1.87.5" | | | | | 158-119 | 60mm/15mm | 158-124 | 2.47.6" | | | | 0.1pm | 158-118 | 45mm/12mm | | | | | | | 158-120 | 60mm/15mm | | | | | | | | | | | | | | |
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| | | Mitutoyo | | |
| | | 67 | | |
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