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This standard specifies the terms and definitions、 types、 basic parameters、 requirements、 inspection methods、 markings、 and packaging of optical torsion spring micrometers (hereinafter referred to as "micrometers"). This standard is applicable to a graduation value of 0 1 um、 0 2 um、 0 A micrometer with a clamping sleeve diameter of 28 mm and a reading range of ± 100 micrometers. 2 Normative References: The clauses in the following documents become clauses of this standard through reference in this standard. For dated reference documents、 all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However、 parties to agreements based on this standard are encouraged to study whether new versions of these documents can be used. For undated references、 the latest version of * applies to this standard. GB/T 17163-1997 Geometry * Measuring Instruments Terminology Basic Terminology 3 Terminology and Definitions The following terms and definitions established in GB/T 17163-1997 are applicable to this standard. 3.1 Optical torsion tube micrometer spring optical measuring heads are measuring instruments that use torsion spring elements as size conversion and optical principle transmission amplification to convert the linear displacement of the measuring rod into the angular displacement of the indicator line on an arc-shaped dial、 and are read by the dial. Also known as an optical torsion spring micrometer or optical torsion spring comparator. 3.2 Free position represents the position of the measuring rod when it is in a free state
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Function of testing report:
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1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered、 meeting different testing needs
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6. Short cycle、 low cost、 and attentive service 7. Possess authoritative qualifications such as CMA、 CNAS、 CAL、 etc 8. The testing report is authoritative and effective、 and is generally used in China