Words to Describe reflectometer

How reflectometer often is described ("________ reflectometer")

• specular
• simple
• port
• ray
• differential
• conventional
• polarized
• total
• sensitive
• acoustic
• photoelectric
• based
• infrared
• optical
• portable
• bidirectional
• coherent
• multipurpose
• hemispherical
• ellipsoidal
• typical
• control
• absolute
• heated
• fundus