Quartz - Import export

Maximum stability in demanding applications The standard AT-cut, 1 in. (25.4 mm) diameter crystal, pioneered by INFICON, is used primarily in research applications with the INFICON RQCM (Research Quartz Crystal Microbalance). These research crystals are designed for use with INFICON rugged, easy to use crystal holders and are used for in-situ monitoring of deposited films or liquids. Geometry AT-cut quartz has superior mechanical and piezoelectric properties. The 1 in. (25.4 mm) diameter allows optimal distance between the active area of the crystal and the mounting o-ring. This improves the overall stability of the crystal by reducing the frequency changes due to mounting stress. Finish INFICON 1 in. (25.4 mm) research crystals are available with either an unpolished or polished finish. Polished crystals allow for a good correlation between theory and measurement during liquid immersion experiments. Electrode Material INFICON 1 in. (25.4 mm) research crystals are available...

There are three main types of infrared emitters. They are classified according to emitted wave lengths. Which emitter type is the best for your application depends on many factors. For most applications an optimum match of emitted wave length and absorption of the target material is desirable. This means a highly efficient transfer of radiation energy in the material and thus a very quick heating. However, there are exceptions to the rule. At very high required energy densities, cyclical processes, transparent, thin or low-conductive materials it might be necessary under certain circumstances to deliberately use emitters whose characteristics deviate radically from the absorption characteristics of the material to be processed. Finally, in many applications, including thermoforming, all three basic emitter types are successfully used – long wave ceramic emitters, medium wave quartz emitters and short wave halogen emitters.