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电脑式万能材料试验机引伸计的分类及如何选择

作者:LIGAO来源:力高检测仪器发布日期:2014-06-17 14:09:15

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引伸计的分类

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按工作原理分:机械式引伸计和电子式引伸计。机械式引伸计,是由指针或光标直接指示位移示值,如百分表式、杠杠式、光学式引伸计;电子式引伸计、采用电子元件构成,如电阻应变式、电感式引伸计、电容式、光栅式、激光式、非触摸式(视频激光)等。

按装夹方法分:人工装卡引伸计和主动引伸计。人工装卡引伸计为常用引伸计,是由实验人员将隐身装卡在实验之上进行实验;主动引伸计为机电一体复合式主动引伸计,与实验主机为一全体组织,由程序设定计算机控制,进行装卡、打开引伸计。全主动引伸计首要用于很多同类试样的大规模校验。

按量程分秒速赛车怎么老是输:小变形引伸计和大变形引伸计。小变形引伸计,通常使用于5mm变形以下,或更小的变形量;大变形引伸计,通常使用于20mm至500mm(或更大)的变形量,大变形引伸计首要用于测验特定需求硬化指数n或试样延伸率。

按标距分:小标距引伸计、一般标距引伸计和大标距引伸计。

按用于环境分秒速赛车怎么老是输:低温引伸计和高温引伸计。

按实验加载方向分秒速赛车怎么老是输:拉伸引伸计、紧缩引伸计、拉压双向引伸计和改变引伸计。

按测量方法分:触摸式引伸计和非触摸引伸计。其间,触摸式引伸计包含单向引伸计和双向均匀引伸计;非触摸式引伸计包含视频引伸计和激光引伸计。

引伸计的选择

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用于弹性变形规模测验的引伸计

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用于弹塑性变形规模测验的引伸计

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