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| refers to the ability to hit what is aimed at. |
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| the intentional, desired difference between the dimensions of two mating parts. |
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| using gages to determine if the product is good or bad, resulting in a yes or no, go or no go decision. |
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| measures luminous intensity. cd |
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| the largest shaft is smaller than the smallest hole |
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| Precision measurements in 3-D Cartesian |
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| Another name for stability. |
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| Provide industry with linear standards of high accuracy that are necessary for everyday use in manufacturing plants. |
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| state the maximum allowable deviation of a form or a position from the perfect geometry implied by drawing |
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| By counting the number of ____ shown on the surface of block U, the distance c-d can be determined. each band represents 11.6um |
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| The hole is smaller than the shaft |
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| Accurately measurements of distances greater than a few inches. (over a distance of 6.1m |
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| the term used to designate the direction of the predominate surface patterns produced by the machining process. |
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1 of 4 fundamental measurements.
base is in ... 1/10,000,000 of quadrant of earth's meridian. or 1,650,763 wavelengths in a vacuum |
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| refers to the calibration accuracy of the device over its full working range. |
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| The simplest and most common direct-reading linear measuring instrument |
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| the amplification of the output portion of the device over the actual input dimension |
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1 of 4 fundamental measurements.
Base is ...used to be mass of 1 cubic decimeter of water |
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| the science of measurements. (to large to cover in the chapter) |
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| one of the most widely used measuring devices. It consists of a fixed anvil and movable spindle. |
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| a large device on which both linear and angular measurements can be made. |
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| plug gagehttp://www.flashcardmachine.com/myFlashCards/quick_edit.cgi |
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| one of the most common types of fixed gages. used to gage internal dimensions |
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| refers to the repeatability of the process. |
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| refers to the smallest unit of scale or dimensional input that the device can detect or distinguish. |
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| used to check shafts or other external round members |
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| the measurement device should be 10 times more precise than the tolerance to be measured. |
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| may be used to obtain accurate angle measurements if the physical conditions will permit |
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| most common type of fixed gage for measuring external dimensions. Eliminates separate go and no go gages |
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| How well does this device retain its calibration over a period of time? |
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| larger versions micrometers that can measure to .00001in |
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| refers to the finely spaced surface irregularities. |
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| 1 of 4 fundamental measurements. Base is measured in ... fraction of thermodynamic temp of water. |
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| 1 of 4 fundamental measurements. base used to be measured in...the fraction of a mean of a solar day. now in the cycles of frequency during some crazy situation. |
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| is an undesirable, but permissible deviation from a desired dimension. |
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| is similar to an optical flat but is made f steel and usually has only one surface that is accurate. |
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| a versatile instrument that measures by optical means; no pressure is involved. |
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| using calibrated instruments to determine the actual dimensions of the product for comparison with the size desired |
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| is an end-measuring instrument, available in various sizes, that can be used to make both outside and inside measurements to theoretical accuracies of .01mm or .001in |
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the tome of inspection methods. Used for visual inspection, guidance, and control.
Use gray scale to identify objects. |
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| is surface irregularity of greater spacing than roughness |
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