speckle: n. 斑點(diǎn);斑紋〔常用 p. p.〕。 vt. 1.加斑點(diǎn)。 2.玷污。 3.點(diǎn)綴。 a speckled group [lot] 駁雜的人群。 speckled trout 斑鮭,斑鱒〔指各種鮭魚,鱒魚,因地而異〕。 dark hair speckled with gray 斑白的頭發(fā)。
When the speckle interferometry or the electronic speckle pattern interferometry ( espi ) is applied to measure the continuous movement or deformation of an object , a temporal speckle interference field will occur 散斑干涉或電子散斑干涉( espi )計(jì)量應(yīng)用于連續(xù)運(yùn)動(dòng)或變形物體時(shí),就會(huì)產(chǎn)生一個(gè)時(shí)變的散斑干涉場(chǎng)。
Laser speckle interferometry was used as the experimental method to test the coefficient of thermal expansion ( cte ) of the metal composite leads used in the packaging structures and the thermal deformations of the entire packaging structures due to the change of temperature from room - temperature to 150oc 通過(guò)實(shí)驗(yàn)和數(shù)值模擬的方法對(duì)其熱變形和熱應(yīng)力進(jìn)行了研究。采用激光散斑干涉法測(cè)量了從室溫到150oc的封裝用金屬?gòu)?fù)合引線的熱膨脹系數(shù)和整個(gè)封裝結(jié)構(gòu)的熱變形。