Help with Dimensional Indicators and Comparators specifications:
Gage Type
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| Comparator | Mechanical comparators, electronic comparators, or appliers and pneumatic or air comparators are gaging devices for comparative measurements where the linear movement of a precision spindle is amplified and displayed on a dial / analog amplifier, column, or digital display. Mechanical comparators have sophisticated, low friction mechanism, better discrimination (~0.00001"), and lower range (~+/- 0.0005") compared to indicators. Comparators have a higher level of precision and less span error compared to conventional dial or digital indicators. The level or precision is sufficient for measurement of high precision or ground parts and for the calibration of other gages. | ||
| Gage Set | Gage sets include several gages and accessories packaged into a kit, usually in a case with adjusting tools. Tool kits sometimes contain alternate extensions and contact tips, holders, bases, or standards. | ||
| Gaging System / Station | Gaging systems or stations are larger, more complex units for large-scale gaging. They are usually available in bench top or floor mounted configurations. These devices may consist of several gages, fixtures, or other components for holding or manipulating parts during inspection. Typically, systems or stations have specialized gaging or inspection systems customized for particular OEM application. Air gaging stations, gear testing systems, form gaging systems, tire profiling systems, and universal gaging systems are example of these types of products. | ||
| Indicator | Indicators are gaging devices for comparative measurements where the linear movement of a spindle or plunger is amplified and displayed on a dial, column or digital display. Typically, indicators have a lower discrimination (~0.001" to 0.0001") and greater range (~+/- 1.000" to +/- 0.050" total) compared to comparators. The level or precision is sufficient for measurement of precision ground parts and for the calibration of other gages. | ||
| Test Indicator | Test indicators have the lowest discrimination when compared with indicators and comparators. Test indicators used mainly for set up and comparative production part checking. Test indicators often use a cantilevered stylus or level style probe that facilitates inspection of hard to reach part features, but results in high cosine errors. A cosine error of 0.0006" may result over a travel range of 0.010". Test indicators are not considered absolute measuring instruments, but comparative tools for checking components against standard or zeroing-out setups. | ||
| Other | Other unlisted, specialized, or proprietary indicator, comparator, or test indicator types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Gaging Technology | |||
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| Air / Pneumatic | Gages or gaging systems use the changes in flow or pressure in air nozzles or inlets internally located in air plugs, probes, rings or snaps or other pneumatic gages. Pneumatic comparators, digital readouts, analog amplifiers, columns or flowmeter / rotameter tubes are used to display air gaging dimensional data. | ||
| Electronic | Electronic gages use LVDT, capacitance, inductive or other electronic probes to sense the distance or displacement of a contact or stylus. Mechanical gages such as micrometers, plug gages, and snap gages may employ an integral electronic probe in addition to the mechanical gaging elements. | ||
| Mechanical | Mechanical gages use comparison or the physical movement and displacement of a gaging element (e.g., spindle, slide, stem) to determine the dimensions of a part or feature. Micrometers, calipers, indicators, plug gages, ring gages or snap gages are examples of mechanical gages. | ||
| Other | Other unlisted, specialized, or proprietary technology types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Measurement Scale / Units
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| Units: | |||
| Your choices are... | |||
| English | Gages and gaging systems are based on the English system of measurement (e.g., inches). | ||
| Metric | Gages and gaging systems are based on the metric system of measurement (e.g., centimeters, millimeters). | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Display: | |||
| Your choices are... | |||
| Dial / Analog / Direct Reading Scale | Devices include dial displays, column/bargraphs, and direct reading scales. Dial displays use a pointer or needle mounted in a graduated, disc dial. The dial provides an indication of dimension or position around or from a zero reference point with dial graduations or styles, such as 10-0-10, 45-0-45, 4-0-4 or 50-0-50. Column and bar graph displays provide a graphical presentation of dimensional data. Direct reading graduated scales have rulings or graduations engraved or printed onto a linear, disc, or drum surface that provides a direct indication of the gaged dimension. Vernier scales provide additional amplification or an increased level of precision (e.g., thousandths). | ||
| Digital Display | Digital display types present metrology data in numeric or alphanumeric form. Micrometers, calipers, and indicators are available with digital displays. Gages with digital displays often have data output capabilities using serial or other formats. Digital readouts are a precision type of digital display integrated into dimensional gages or systems. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Specifications
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| Range / Travel: | The total range length or dimensional range that gages can measure. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Graduation / Resolution: | The best or minimum graduations for scaled or dial-indicating instruments, or the best or minimum resolution for gages with digital displays. | ||
| Search Logic: | All matching products will have a value less than or equal to the specified value. | ||
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Mounting / Features
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| Mounting / Loading: | |||
| Your choices are... | |||
| Automatic / Inline | The part is automatically presented to the gage and measured without operator intervention. Inline devices are automatic gages used in a production line. In semi-automatic systems, a part is presented manually to the gage or gaging system and then measured automatically. | ||
| Benchtop / Floor | Devices are benchtop, table-based or floor mounted gages or instrument where a part is both manually loaded and measured. | ||
| Handheld / Portable | Devices can be operated while being held in the hand and/or are portable. | ||
| Machine Mounted | Gages are mounted on or within a machine tool or equipment for tool setup or travel measurement. Test indicators, dial indicators and micrometer heads are examples of gages that are often machine mounted. | ||
| Other | Other unlisted, specialized or proprietary mounting or loading types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Machine Travel / Conversion | Gages or gaging systems are designed to measure the travel or position changes of a machine bed, table, or stage. Micrometer heads, indicators, specialized calipers, and other OEM gages are used for machine travel indication. These gages are typically mounted on a machine or are built into a product including machine tools, microscopes, and other instruments requiring precision dimensional measurement or position control. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Marking Capability | Gages accommodate a scribe or other device for accurately marking a component at a specific measurement along a particular dimension. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Tool Setting Capability | Gages are used for setting cutting tools in spindles, collets, or holders with respect to zero, or a reference point. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Dial Reading Size: | |||
| Your choices are... | |||
| AGD 1 | Devices meet American Gage Design (AGD) Group 1 Specifications for dial sizes where the bezel diameter is 1.375" to 2". | ||
| AGD 2 | Devices meet American Gage Design (AGD) Group 2 Specifications for dial sizes where the bezel diameter is 2" to 2.375". | ||
| AGD 3 | Devices meet American Gage Design (AGD) Group 3 Specifications for dial sizes where the bezel diameter is 2.375" to 3". | ||
| AGD 4 | Devices meet American Gage Design (AGD) Group 4 Specifications for dial sizes where the bezel diameter is 3" to 3.75". | ||
| Other Dial Size | Other dial sizes such as ANSI Size 0, AGD Group 5, metric / international or OEM / custom sizes. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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