有兩種安裝食品金屬檢測機的(de)(de)方法。可以(yi)在傳(chuan)送帶上的(de)(de)傳(chuan)送帶上的(de)(de)貨物上方或下方安裝扁平電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)。但(dan)是更(geng)靈巧的(de)(de)食品金屬(shu)探(tan)測器應允許產品通過電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)并將(jiang)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)安裝在金屬(shu)材料(liao)外殼中(zhong)。這種更(geng)靈巧的(de)(de)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)類型通常至少配備三個電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)，其(qi)中(zhong)一個管(guan)理(li)中(zhong)心(xin)發射點電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)，兩個相對纏繞(rao)的(de)(de)接(jie)收電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)安裝在攝像機中(zhong)。連接(jie)到(dao)管(guan)理(li)中(zhong)心(xin)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)的(de)(de)振蕩器會產生高頻(pin)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)場。兩個繞(rao)組方向連接(jie)到(dao)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)線(xian)圈(quan)(quan)(quan)(quan)，因此(ci)在不干擾電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)場的(de)(de)情況下，由它們(men)引起的(de)(de)磁(ci)(ci)(ci)感應工作電(dian)(dian)(dian)(dian)壓可以(yi)自行抵消。

　　為了獲得最佳靈敏度食品金屬檢測機的(de)直徑規格(ge)應與(yu)特殊(shu)商品(pin)尺寸一致。如果直徑太大則存(cun)在(zai)削(xue)弱數(shu)據(ju)(ju)信(xin)號(hao)的(de)風險;小直徑將(jiang)不(bu)(bu)利于貨(huo)物(wu)進入傳送帶(dai)。食(shi)品(pin)金屬(shu)檢(jian)測機的(de)靈(ling)敏度(du)通常(chang)是通過精確(que)測量幾(ji)何(he)圖形(xing)管(guan)理中心的(de)直徑(最不(bu)(bu)敏感的(de)幾(ji)何(he)圖形(xing)點(dian))來獲(huo)得的(de)。當產品(pin)被金屬(shu)材料(liao)環境污(wu)染時(shi)，隱含的(de)金屬(shu)物(wu)體(ti)將(jiang)對食(shi)品(pin)金屬(shu)檢(jian)測機的(de)電磁(ci)場造成干擾。兩(liang)個接(jie)收電磁(ci)線圈的(de)輸出數(shu)據(ju)(ju)信(xin)號(hao)不(bu)(bu)能彼此(ci)抵消，并且可以(yi)檢(jian)測到金屬(shu)材料(liao)殘留物(wu)的(de)存(cun)在(zai)。