The range of applications where extensometers are used is diverse and the technical requirements for these devices are. Connect the manual control cable on the bottom left of the utm base and the bottom. Video extensometers for material testing details extensometer modules extensometer module system controller signal interface unit utm an imetrum video extensometer consists of the following parts. Observe the hesitation vibration in movement of load dial and. Product guide universal test machines united testing. If you are using a test standad, check the standard for extensometer gauge. Where other utm manufacturers shy away from modifying their standard size test. Load vs time, crosshead travel vs time, stress vs strain, etc. Geokon, the world leader and manufacturer of extensometers, also offers a custom design service for your geotechnical monitoring and engineering needs.
The system employs up to eight rods, anchored along the axis of a borehole, terminating in the reference head at the. A number in parentheses indicates the year of last reapproval. The specimen is placed in the machine between the grips and an extensometer if required can automatically record the change in gauge length during. High resolution strain gauge extensometers description a generalpurpose, precision extensometer, designed for testing a wide range of materials including metals, plastics, composites and. If an extensometer for utm machine is not fitted, the machine itself can record the displacement between its cross heads on which the specimen is held. Digital crosshead drive system with fully variable speed control. The uve can also be used as a standalone system or on a homebrew daq setup. Mechatronic control system is a prominent manufacturer of universal testing machine which is available in electronic and computerized functioning. Extensometer for universal testing machine, 100 mm gauge length, 50. Utm 4000 universal hydraulic tensile test machine is designed to test the.
User can choose different options for online graph. Untitled fine spavy, universal testing machines, impact testing. Jul, 2018 the extensometer will accurately measure strain by clamping onto the reduced area portion of a sample and mitigate the effects of grips on position measurement. Extensometer for universal testing machine, 50 mm gauge length, 25 mm travel accuracy 0. Standard test methods for tension testing of metallic materials1 this standard is issued under the. The elongation of the material is a physical deformation of the sample and is a type of strain. Instron model 4400 universal testing system operators guide. Jan 20, 2016 the extensometer is mounted on the specimen with the gauge length pin or zero pin in place to set the extensometers gauge length accurately.
The low operatingforce arms of the extensometer reduce the possibility of knife. Length of the parallel portion of the test piece used for the measurement of extension by means of an extensometer. Standard test methods for tension testing of metallic materials1. The 2630 series extensometers can be installed or set in place accurately and consistently, with the gauge length locking device automatically releasing itself after attachment, ensuring speed and reliability of operation. Universal video extensometers for strain measurement. To avoid end effects from the shoulders, the length of the transition region should be at least as great as the diameter, and the total length of the reducedsectionshould be at least four times the diameter.
It used in tensile test and sense the elongation when testing is processing. The mechanical properties of materials are determined by performing carefully designed laboratory experiments that replicate as nearly as possible the service conditions. To avoid end effects from the shoulders, the length of the transition region should be at least as great as the diameter, and the total length of the reducedsectionshould. Ut martin is a primary campus in the university of tennessee system and is known for excellence and outstanding value in undergraduate education. By using an extensometer for direct extension measurement all additional deformation as load frame, load cell, grips or fixtures or strain in the nonparallel section of the specimen is ex. Transverse and diametral extensometers epsilon tech. The lightweight, rugged crossbrace design eliminates errors caused by physical distortion, while builtin protection ensures that damage is not caused by overextension. If you are using a test standad, check the standard for extensometer gauge length requirements. Extensometer is the essential equipment for measuring the elongation of specimen. Manually jog the crosshead up so that you can more easily remove your sample from the grips. The universal part of the name reflects that it can perform many standard tensile and. Technical specifications for utm universal testing machine 100 kn capacity to test wood material as per internationalnational standards standard features of utm must include the followings. Designed for use with electromechanical testing instuments, longtravel extensometers can be used to measure specimen elongations up to 30 in or 750 mm.
An extensometer is a device that is used to measure changes in the length of an object. Presentations ppt, key, pdf logging in or signing up. What informations can we get by using the extensometer. A wide variety of extensometer options are available to you, such as universal testing machine, tensile testing machine, and deformation testing machine. The ve1 video extensometer is a high precision instrument that uses a noncontacting optical measurement system based on. High precision electrical strain gauged extensometer will be applied for. Product guide universal test machines united testing systems. Jun 12, 2012 extensometry is the science of the measurement and analysis of changes in a materials linear dimensions during tensile testing. To determine the suitability of a material for an application where it is under load, measuring its elongation is important.
It is important to check the extensometer knife edges for damage and to ensure that no additional load is applied by the weight of the extensometer cable, which is best supported with a. United s smart systems incorporate robust yet accurate mechanics, stateoftheart dsp control technology and powerful, yet easy to use. Material testing grips, extensometer model utmgr01 utmgr02 utmgr03 utmgr04 image max. It is further recommended that for measurement of parameters at or after maximum force. It is recommended that for measurement of yield and proof strength parameter le lo2. If no more tests are being completed, shut down the software by clicking exit, and turn o.
Extensometers a for materials testing b c d e f g h i j k l m. The specimen is placed in the machine between the grips and an extensometer if required can automatically record the change in gauge length during the. Extensometry is the science of the measurement and analysis of changes in a materials linear dimensions during tensile testing. It was invented by charles huston who described it in an article in the journal of the franklin institute in 1879. Axial extensometers for metals, ceramics, frp material gauge length 10 mm to 50 mm with extension 50%. Extensometer for utm machine the specimen is placed in the machine between the grips and an extensometer if required can automatically record the change in gauge length during the test. Extensometer for utm machine and muffle furnace slideshare. Extensometer removal and the test will continue after this action occurs. An earlier name for a tensile testing machine is a tensometer. Pdf characterization of materials undergoing severe plastic deformation requires the careful measurement of instantaneous sample dimensions throughout. By using an extensometer for direct extension measurement all additional deformation as load frame, load cell, grips or fixtures or strain in the nonparallel section of the specimen is excluded. Utm515, extensometer extensometer is the essential equipment for measuring the elongation of specimen. Extensometer is helpful to analysis test data at the same time, including force, elongation, time and so on. Designed for use with electromechanical testing instuments, longtravel.
The specimen is placed in the machine between the grips and an extensometer if required can automatically record the change in gauge length during the test. We dge action grips are the most common style used in. Ergonomic, manual jog controls allow fast and accurate crosshead setup. United s smart systems incorporate robust yet accurate mechanics, stateoftheart dsp control technology and powerful, yet easy to use software that puts you in control of your test procedures. An extensometer is an instrument that measures the elongation of a material under stress. Mechanical extensometers, extensometer for utm machine. A miniature extensometer designed for general purpose transverse or diametral strain measurements on small or thin specimens. United extensometer w data cable united testing systems. Compatible with materials testing furnaces or induction heating. What informations can we get by using the extensometer during. The extensometer is mounted on the specimen with the gauge length pin or zero pin in place to set the extensometers gauge length accurately.
The low operatingforce arms of the extensometer reduce the possibility of knifeedge slippage when testing hard or smooth surfaced materials. Maple 2019 windowsmac installation instructions in pdf format for faculty, staff, and students. Adjust gauge length on extensometer and fix it on middle portion of the bar. Hydraulic universal testing machine universal testing. A smart utm from united provides your lab or production faculity with a. Zwickroell has a comprehensive selection of extensometers, ranging from an analog clipon instrument to the fully automatic universal extensometer. This document and the information that it contains are the property of instron corporation. Extensometer gauge length is the distance between the extensometers initial measuring points on the specimen. Remove the extensometer from your sample by pulling the spring clips back. Various materials are used in the construction and manufacturing fields.
Noncontacting video extensometer for tensile testing ve1. Extensometer is a device that is used for precise measure of the specimen deformation strain, basing on it and the effective stress you can calculate the modulus of elasticity. If extensometer is used during the testing, then load, elongation and extension values will be. An extensometer is a high precision instrument specially designed for geologists or civil engineers to measure the elongation of a material under stress. Adjust the zero of extensometer and the measuring device of utm. Extensometer for utm machine we are manufacturing of creating a niche of extensometer for utm machine such as electronic extensometer and mechanical. To help prevent extensometer slippage, the clamping force and the zero point should be checked regularly and worn knife edges replaced.
E continuous rod extensometer features benefits description the continuous rod extensometer system accurately measures settlement andor heave at single or multiple anchor points in a borehole and at its reference head. It is useful for stressstrain measurements and tensile tests. This machine is used to test the tensile and compressive properties of material. Capacity n 20kn 50kn 200kn adapter material steel application qc528. The elongation of the material is a physical deformation of the sample and is a type of strain associated with tensile measurements. An extensometer is a type of strain gauge that is used in conjunction with a universal testing machine in order to measure elongation at high accuracies.
A universal testing machine utm, also known as a universal tester, materials testing machine or materials test frame, is used to test the tensile strength and compressive strength of materials. Integrated digital closedloop control and data acquisition electronics. Flexible or highextension specimens can destroy or damage the knife edges and even the extensometer itself because of splintering, whiplash, or. These materials are subjected to various forces and. Extensometers are instruments that monitor the variation in distance between two or more points along the installed axis. The winutm software can run a variety of mechanical tests, recall data from previous test and prepare test report.
Pdf a new video extensometer system for testing materials. Noncontacting video extensometer for tensile testing. Switch on the machine, take extensometer readings for the specified intervals and record them. The extensometer is supplied with a universal voltage external power supply unit, a loom and connector to fit a range of machines. The universal transverse mercator grid the national imagery and mapping agency nima formerly the defense mapping agency adopted a special grid for military use throughout the world called the universal transverse mercator. The information contained herein is believed to be accurate and reliable. Dear arvind, the extensometer is a device to measure the extension in the tensile test mainly in the linear part of the load extension stressstain curve. Extensometers a for materials testing b c d e f g h i j k. Jul 15, 2015 extensometer for utm machine we are manufacturing of creating a niche of extensometer for utm machine such as electronic extensometer and mechanical extensometer at its best, with utmost quality. Video extensometers for material testing details extensometer modules extensometer module system controller signal interface unit utm an imetrum video extensometer consists of the. Extensometer for utm machine manufacturer utm machine. Geokonealey tape extensometer no part of this instruction manual may be reproduced, by any means, without the written consent of geokon, inc. Mcs offers different types of extensometers to meet varying industry needs. Mechatronic control system is a prominent manufacturer of universal testing machine which is available in.
An extensometer, sometimes also called a strain gauge, is a device which measures variations in an objects length. The uve video extensometer can be integrated with most modern universal testing machines including the ibrand, mbrand, tbrand, and also the japanese and european utm brands. Extensometers, extensometer, manufacturer, exporter. How to select the right extensometer for your material. Rights to duplicate or otherwise copy this document and rights to disclose the document and the information that it contains to others and the right to use the information contained therein may be acquired only by written. Metals tension test with axial extensometer epsilon. May be used simultaneously with the model 3442 miniature axial extensometers or the model 3542 axial extensometers. Many standards specifiy specimen dimensions and a matching gauge length. By using an extensometer for direct extension measurement all additional deformation as load frame, load cell, grips or fixtures or strain in the nonparallel section of the specimen is ex cluded. The longtravel xl extensometer is a precise device for measuring strain in highly extensible materials. United smart testing machines utilize epsilon brand extensometers that.
Standard test methods for tension testing of metallic. An extensometer is an instrument that measures test specimen elongation to characterize strain. Capacity n 20kn 50kn 200kn adapter material steel application qc528 qc508e qc528 qc508e qc5 qc508 qc506 qc505 qc505 series qc503 qc502 series diagram utm515, extensometer extensometer is the essential equipment for measuring. Computer controlled series 1600 universal testing machine.
Proprietory rights notice this document and the information that it contains are the property of instron corporation. We are manufacturing of creating a niche of extensometer for utm machine such. These variations can be so minute that they are not. The 2630 series and w6280 series of extensometers offer speed of attachment and ease of use.
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