如何避免電子萬能試驗(yàn)機(jī)誤差出現(xiàn)
發(fā)布時(shí)間:2018-11-23 來源:濟(jì)南恒思盛大儀器有限公司 瀏覽:次
電子萬能試驗(yàn)機(jī)作為常使用的萬能試驗(yàn)機(jī),也備受大家所關(guān)注,由于人們操作的不當(dāng)就會(huì)使電子萬能試驗(yàn)機(jī)誤差出現(xiàn),電子萬能試驗(yàn)機(jī)的操作看似復(fù)雜其實(shí)也比較簡(jiǎn)單,只要熟練掌握操作技巧,靈活運(yùn)用,并且在使用過程中細(xì)心細(xì)致一些,很多誤差都是可以避免的。首先,我們要先熟悉電子萬能試驗(yàn)機(jī)經(jīng)常出現(xiàn)的幾種誤差,才能夠更好的避免誤差的出現(xiàn)。目前,根據(jù)客戶反饋和測(cè)試發(fā)現(xiàn)電子萬能試驗(yàn)機(jī)的誤差主要有以下幾種:
Electronic universal testing machine as the universal testing machine ismost frequently used, has attracted a lot of attention, due to improperoperation will people make error of electronic universal testing machine,electronic universal testing machine operation seemingly complex isrelatively simple, as long as the master the operation skills, flexible use,and in the process of use in careful detail, many errors can be avoided.Firstly, several error we must be familiar with electronic universal testing machine often appear, can better avoid error. At present, according to customer feedback and testing found that the error of electronicuniversal testing machine mainly has the following several:
一、電子萬能試驗(yàn)機(jī)的過失誤差:
Error one, electronic universal testing machine:
由于試驗(yàn)工作中的錯(cuò)誤,疏忽大意等原因引起的誤差。這種誤差是沒有規(guī)律的,需要反復(fù)核對(duì)方可避免。產(chǎn)生原因:電子電子萬能試驗(yàn)機(jī)操作錯(cuò)誤,試驗(yàn)人員看錯(cuò)了數(shù)字,記錄時(shí)寫錯(cuò)了小數(shù)點(diǎn)位置。
The experimental work of error, error caused by negligence. This erroris not regular, need each other to avoid repeated nuclear. Cause: theelectronic universal testing machine operation error, test personnelwrong number, record the location of the decimal point is wrong.
二、電子萬能試驗(yàn)機(jī)系統(tǒng)誤差:
Two, the electronic universal testing machine system error:
保持一定數(shù)值或者一定規(guī)律變化的誤差。系統(tǒng)誤差是有規(guī)律的,這種規(guī)律體現(xiàn)在每一次具體的試驗(yàn)中,找到這種規(guī)律,就可以加以修正。電子萬能試驗(yàn)機(jī)產(chǎn)生這種問題的原因有:1、電子萬能試驗(yàn)機(jī)示值不準(zhǔn),所測(cè)得的力值總是偏大或偏小。2、電阻應(yīng)變儀測(cè)量應(yīng)變時(shí),儀器面板上的系數(shù)的誤差。
Error keeps changing certain numerical or certain laws. System error is regular, the law embodied in every trial specific, find the law, can bemodified. The reason for this problem is to produce electronic universal testing machine has not shown: value 1, electronic universal testing machine, the measured force value is too large or too small. 2, the resistance strain gauge measuring strain, error coefficient on the instrument panel.
三、電子萬能試驗(yàn)機(jī)隨機(jī)誤差:
Three, the electronic universal testing machine random error:
即在相同的條件下,對(duì)同一參數(shù)重復(fù)進(jìn)行多次測(cè)量,所得到的測(cè)定值也不可能完全相同。產(chǎn)生原因:1、在試驗(yàn)過程中,試驗(yàn)機(jī)內(nèi)摩擦力的變化;2、環(huán)境濕度等的變化。
Under the same conditions, the same parameter is repeated many timesmeasurement, the measured values can not be completely the same.Reasons: 1, in the course of the experiment, the change of internal friction test machine; 2, the change of environment humidity.
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