Page 6 - Shimadzu IRTracer-100

Reliable High Performance

An automatic dehumidi er and advanced dynamic alignment enable easy maintenance of the interferometer.

Built-in Automatic Dehumidifier Allows for Easy Maintenance

Beam splitters used in FTIR interferometers are susceptible to humidity. In order to maintain the long-term stability of
the interferometer, the beam splitter must be protected from moisture. To address this issue, the IRTracer-100 has been engineered
with an airtight interferometer that incorporates a unique internal Automatic Dehumidi er.

Three Measures Taken to Protect the Optical Element in the Interferometer

An electronic Automatic Dehumidi er The beam splitter is covered
The interferometer is sealed continuously removes any moisture, with a moisture-resistant
in an airtight housing.
ensuring a dry interferometer chamber. protective coat.

The IRTracer-100 incorporates an Automatic Dehumidi er that
Principle of electrolytically removes the moisture inside the interferometer using
a solid polymer electrolytic membrane.
the Automatic
Because the electric power required to operate the Automatic
Dehumidifier
Dehumidi er is less than the continuous operation of the FTIR,
it can reduce CO 2 emissions by approximately 400 kg/year.*
Dehumidifying Moisture decomposed
1 When porous electrodes are attached to a solid polymer electrolytic membrane
and direct current is applied, moisture on the anode side (i.e., the desiccation side)
dissociates into hydrogen ions and oxygen.

2 The hydrogen ions travel through the solid polymer electrolytic membrane and Inside of
interferometer
reach the cathode side (i.e., the moisture discharge side).

3 At the cathode, the hydrogen ions react with oxygen in the air to form (gaseous)
water vapor, which is released outside the interferometer. Light source

Aperture
Anode Moving mirror
(desiccation side) Collimator
mirror
BS
Cathode Laser Detector Fixed
(moisture discharge side) mirror
He–Ne laser
Automatic
Dehumidi er
Replacing the window (KBr) at the sample compartment with an optional
KRS-5 window (P/N 206-74211-58) ensures safe operation with no concern for
Condensing
the window plate becoming cloudy under a high humidity environment. mirror
KBr window
Detector Sealing case

* Model case by SHIMADZU

6 F o u r i e r T r a n s f or m I n f r a r e d S p e c t r oph o t ome t e r