Mantis 5000 Especificaciones descargar pdf (Pagina 35)

Centre-Mount Sample Holders

A centre-mount sample holder offers two distinct advantages over the external sphere

sample holders on the DRA. One is the ability to vary the angle of incidence for

reflectance and transmission measurements. The other advantage is the ability to measure

the transmission and reflectance of a sample together (transflectance).

There are several centre-mount designs, depending on the reflectance or transmission

application intended.

• A variable angle sample holder mounts a solid sample at the centre of the sphere

at specified angles of incidence from the sample beam. The variable angle sample

holders may be clip or jaw style.

• A cuvette centre-mount sample holder positions a cuvette inside the sphere at a

fixed angle normal to the sample beam.

Installation and alignment

To install a centre mount sample holder:

1. Remove the sphere cap from the top of the sphere.

2. Lower the centre mount through the opening in the sphere.

3. Fit the two posts on the centre mount onto the sphere by using the two locating holes

in the top of the sphere.

Figure 30. Lower the centre mount through the opening in the sphere, user the locating

holes in the top of the sphere to secure the centre mount.

4. Align the centre mount sample holder.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 87 88

Sin comentarios

Mantis 5000 Especificaciones Pagina 35