信息來源:本站 | 發布日期: 2023-06-14 13:21:06 | 瀏覽量:391
摘要:
一般(ban)來說(shuo),傳(chuan)(chuan)感器(qi)的(de)量程越接近(jin)分配到每個傳(chuan)(chuan)感器(qi)的(de)載(zai)(zai)荷(he)(he),其稱(cheng)量的(de)準確度就越高。但在(zai)實習運用(yong)(yong)時,因為(wei)加在(zai)傳(chuan)(chuan)感器(qi)上(shang)的(de)載(zai)(zai)荷(he)(he)除被稱(cheng)物體外,還存在(zai)秤(cheng)體自(zi)重(zhong)、皮(pi)重(zhong)、偏載(zai)(zai)及(ji)振動(dong)沖擊等載(zai)(zai)荷(he)(he),因此(ci)選用(yong)(yong)傳(chuan)(chuan)感器(qi)量程時,要考慮諸(zhu)多方(fang)面的(de)要素,確保傳(chuan)(chuan)感器(qi)的(de)安全和(he)壽數。今天說(shuo)下稱(cheng)重(zhong)傳(chuan)(chuan)…
一般來說,傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器的(de)量(liang)(liang)程(cheng)越(yue)接近分配到每個(ge)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器的(de)載荷(he),其稱(cheng)量(liang)(liang)的(de)準確度就越(yue)高(gao)。但(dan)在實習運用(yong)時(shi),因為加在傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器上的(de)載荷(he)除被稱(cheng)物體外,還存在秤體自重(zhong)、皮重(zhong)、偏載及振動沖擊等載荷(he),因此選用(yong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器量(liang)(liang)程(cheng)時(shi),要考慮諸(zhu)多方(fang)面的(de)要素,確保傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器的(de)安全和壽數。今天(tian)說下稱(cheng)重(zhong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器的(de)數量(liang)(liang)和量(liang)(liang)程(cheng)原(yuan)理(li):
1、稱重傳感器(qi)的數量(liang)和量(liang)程
一般(ban)應使(shi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)在(zai)其(qi)30%~70%量(liang)(liang)程(cheng)(cheng)內工(gong)作(zuo)。但對于(yu)一些在(zai)運用(yong)過程(cheng)(cheng)中存在(zai)較(jiao)大沖(chong)擊(ji)力(li)的(de)衡(heng)器(qi),如(ru)動態軌道衡(heng)、動態汽車(che)衡(heng)、鋼材秤等(deng)(deng),在(zai)選用(yong)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)時(shi),一般(ban)要拓展其(qi)量(liang)(liang)程(cheng)(cheng),使(shi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)在(zai)其(qi)量(liang)(liang)程(cheng)(cheng)的(de)20%~30%以內工(gong)作(zuo),使(shi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)的(de)稱(cheng)(cheng)(cheng)量(liang)(liang)儲藏量(liang)(liang)程(cheng)(cheng)增(zeng)大,以確(que)保稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)的(de)運用(yong)安全(quan)和(he)壽數。稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)型(xing)式(shi)的(de)選擇首要取(qu)決于(yu)稱(cheng)(cheng)(cheng)量(liang)(liang)的(de)類型(xing)和(he)設備(bei)空(kong)間(jian),確(que)保設備(bei)適(shi)宜,稱(cheng)(cheng)(cheng)量(liang)(liang)安全(quan)可靠;另一方面,要考(kao)慮稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)制造廠的(de)建(jian)議(yi)。制造廠一般(ban)會根據稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)的(de)受力(li)情況(kuang)、功(gong)用(yong)政策、設備(bei)方法、結構(gou)型(xing)式(shi)、彈(dan)性體的(de)資料(liao)等(deng)(deng)特征規矩稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)的(de)適(shi)用(yong)計劃,比如(ru)鋁式(shi)懸臂(bei)梁稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)適(shi)用(yong)于(yu)計價秤、平臺秤、案秤等(deng)(deng),鋼式(shi)懸臂(bei)梁稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)適(shi)用(yong)于(yu)料(liao)斗(dou)秤、電子(zi)皮(pi)帶秤、分選秤等(deng)(deng),鋼質(zhi)橋式(shi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)適(shi)用(yong)于(yu)軌道衡(heng)、汽車(che)衡(heng)、天車(che)秤等(deng)(deng),柱式(shi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)適(shi)用(yong)于(yu)汽車(che)衡(heng)、動態軌道衡(heng)、大噸位料(liao)斗(dou)秤等(deng)(deng)。稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳感(gan)(gan)器(qi)
2、稱重傳感器的準確度等級選擇
稱(cheng)(cheng)(cheng)重(zhong)傳感(gan)器(qi)(qi)(qi)的(de)(de)準(zhun)確(que)度(du)(du)等(deng)級包括稱(cheng)(cheng)(cheng)重(zhong)傳感(gan)器(qi)(qi)(qi)的(de)(de)非(fei)線(xian)(xian)性(xing)(xing)、蠕變、重(zhong)復性(xing)(xing)、滯后(hou)、靈敏(min)度(du)(du)等(deng)技術政策。在選用(yong)的(de)(de)時分不應當盲(mang)目尋求(qiu)高等(deng)級的(de)(de)稱(cheng)(cheng)(cheng)重(zhong)傳感(gan)器(qi)(qi)(qi),應當考(kao)慮(lv)電子衡(heng)的(de)(de)準(zhun)確(que)度(du)(du)等(deng)級和本錢。一般情況下,選用(yong)稱(cheng)(cheng)(cheng)重(zhong)傳感(gan)器(qi)(qi)(qi)的(de)(de)總精度(du)(du)為(wei)非(fei)線(xian)(xian)性(xing)(xing)、不重(zhong)復性(xing)(xing)和滯后(hou)三項政策的(de)(de)之和的(de)(de)均方根(gen)值(zhi)略(lve)高于(yu)秤的(de)(de)精度(du)(du)。稱(cheng)(cheng)(cheng)重(zhong)傳感(gan)器(qi)(qi)(qi)
3、各種類型(xing)稱重傳感器的運用計(ji)劃
選用的(de)(de)稱重(zhong)傳(chuan)感(gan)(gan)器(qi)須(xu)滿足表面(mian)輸入靈(ling)敏度(du)的(de)(de)央(yang)求(qiu),須(xu)可以與所選表面(mian)匹配,滿足整臺(tai)電子(zi)秤準(zhun)確度(du)的(de)(de)央(yang)求(qiu)。一(yi)臺(tai)電子(zi)秤首要是由(you)機械組織(zhi)、稱重(zhong)傳(chuan)感(gan)(gan)器(qi)、表面(mian)三有些構成,在對(dui)稱重(zhong)傳(chuan)感(gan)(gan)器(qi)準(zhun)確度(du)選擇的(de)(de)時分,應使稱重(zhong)傳(chuan)感(gan)(gan)器(qi)的(de)(de)準(zhun)確度(du)略高于理(li)論(lun)核算值,因為理(li)論(lun)一(yi)般遭到客觀條件的(de)(de)束縛,如機械結構的(de)(de)強(qiang)度(du)、表面(mian)的(de)(de)功用、秤的(de)(de)工作環境(jing)惡劣程度(du)等要素都直(zhi)接影響到秤的(de)(de)準(zhun)確度(du)。因此要從各方面(mian)行進央(yang)求(qiu),統籌經濟(ji)效益,確保抵達意(yi)圖。
4、運用環(huan)境
一(yi)般情況下(xia)(xia),高溫環境對稱(cheng)(cheng)(cheng)重(zhong)傳(chuan)(chuan)(chuan)感器構(gou)成(cheng)(cheng)涂覆資(zi)料融化、焊(han)點(dian)開(kai)化、彈(dan)性體(ti)內應(ying)力發生結構(gou)改動等疑(yi)問;粉塵(chen)、濕潤(run)對稱(cheng)(cheng)(cheng)重(zhong)傳(chuan)(chuan)(chuan)感器構(gou)成(cheng)(cheng)短(duan)路的(de)影響;在腐蝕性較高的(de)環境下(xia)(xia)會構(gou)成(cheng)(cheng)稱(cheng)(cheng)(cheng)重(zhong)傳(chuan)(chuan)(chuan)感器彈(dan)性體(ti)受損或(huo)發生短(duan)路表象;電磁(ci)場對稱(cheng)(cheng)(cheng)重(zhong)傳(chuan)(chuan)(chuan)感器輸出會發生攪擾。相應(ying)的(de)環境要(yao)素下(xia)(xia)咱們有(you)必要(yao)選(xuan)擇對應(ying)的(de)稱(cheng)(cheng)(cheng)重(zhong)傳(chuan)(chuan)(chuan)感器才(cai)調滿(man)足必要(yao)的(de)稱(cheng)(cheng)(cheng)重(zhong)央求(qiu)。
通過(guo)對(dui)稱(cheng)重傳(chuan)感器的數量(liang)和量(liang)程原理的了(le)解(jie),相信(xin)大家(jia)對(dui)稱(cheng)重傳(chuan)感器有了(le)一定的了(le)解(jie)。
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智能稱重傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)稱重傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)實(shi)際上是一種將質量信(xin)號(hao)轉變(bian)為可測量的(de)電信(xin)號(hao)輸出的(de)裝置。用(yong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)因先要(yao)(yao)考慮(lv)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)所處(chu)的(de)實(shi)際工作(zuo)環(huan)境,這(zhe)點對(dui)正確(que)選(xuan)用(yong)稱重傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)至(zhi)關(guan)重要(yao)(yao),它(ta)關(guan)系到傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)能否正常工作(zuo)以及它(ta)的(de)安全和(he)使(shi)用(yong)壽命,乃至(zhi)整個衡器(qi)的(de)可靠性和(he)安全性。在稱重傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)主要(yao)(yao)…