ASTM. E is applicable for linear variable displacement transformers ASTM E also has multiple accuracy classifications similar to ASTM E83 for the. THE FOLLOWING DESCRIBED EQUIPMENT IN ACCORDANCE WITH. ASTM- E AND UTS SOPRev CERTIFICATE NUMBER: CR# GWASTM E Standard Practice for Verification and Classification of Extensometer Systems_自然科学_专业资料。GWASTM E
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NOTE 1—Bonded resistance strain gages directly bonded to a specimen cannot be calibrated or veri? Standards Subsctiption may be the perfect solution.
If this is the case, prior to combining it with the other uncertainty components, divide it by two. In such cases, the extensometer system shall be veri? You may delete a document from your Alert Profile at any time. Originally approved in Extensometer systems asmt be classified in accordance with the requirements as to maximum error of strain indicated: NOTE 5—Extensometers used for high-temperature testing may be veri?
ASTM E83 – 16
See procedures as described in Test Methods E Note 1—Bonded resistance strain gauges directly bonded to a specimen cannot be calibrated or verified with the apparatus described in this practice for the verification of extensometers having definite gauge points. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Extensometers that contain large mechanical elements may have inertial effects which at high frequencies cause forces on the attachment points to the specimen.
A number in parentheses indicates the year of last reapproval. It may be due to a shift in the null point of the device, a change in span, or an error in the gage length. If the dial micrometer is tapped during the veri?
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If the machine system resolution is 0.
ASTM E83 – 16 – Standard Practice for Verification and Classification of Extensometer Systems
The maximum allowable error in each class is the? Work Item s – proposed revisions of this standard. Proceed to Checkout Continue Shopping. Already Subscribed to aetm document.
axtm B The strain of an Extensometer System is the ratio of applied extension to the gage length. If readout devices are always used in combination, individual veri?
ASTM E83 – 10a Standard Practice for Verification and Classification of Extensometer Systems
Please first log in with a verified email before subscribing to alerts. It is not the measurement uncertainty of the extensometer or the measurement uncertainty of test results determined using the extensometer.
Any output under these test conditions will likely cause deviations in the accuracy 8e3 the extensometer system as determined by the static veri?
The extensometer may either be attached directly to the mechanism or interfaced with it in a manner similar to normal operation that is, possibly without contact for some optical extensometers. As an alternative, after individual veri? Your Alert Profile lists the documents that will be monitored. For direct-reading extensometers the calibration factor is unity. Last previous edition approved in as E 83 — Extensometer systems are classified asstm the basis of the magnitude of their errors.
In addition to the terms listed, see Terminology E 6.
If there are four or more gage points, take the average of the individual lengths as the gage length. These errors can be due to dimensional changes from reproduction or humidity changes.
Asym 4—An example of an extensometer that is described by 5.
The differences between individual measurements shall not exceed the tolerance given for the class of extensometer. Add to Alert PDF. Link to Active This link will always route to the current Active version of the standard. Errors are based on net values from the zero point to each successive veri?