|
high sensitivity
analoge and digital displays
low noise
computer interface and software available
incl. pyroelectric detector with ranges
from
3µJ
to 200 mJ
| Typ |
Standard |
Ranges |
3
µJ – 200 mJ |
max.energy
density |
150
mJ/cm² |
max.power
density |
8
MW/cm²
(10 ns Pulse) |
max.average
power |
400
mW |
active
area |
Ø
34 mm |
In the past laser energy meters often
required a whole selection of pyroelectric
detectors for measuring different energies.
From this point of view the PM 200 is
a very modest instrument. A single detector
enables monitoring of energies from the
detection limit at 3 µJ up to highest
energies of 200 mJ. The active sensor
area with an aperture diameter of
34 mm ensures simple and reliable alignment
for the detection of large beam profiles.
Various other, as well as detectors for
higher energies, are available on request.
For fast and comfortable tuning alignments
the pulse energies are displayed by an
analogue meter. Simultaneously, a 3.5
digit LCD display gives the precise value
of single shot energies for accurate fine
adjustments. Additionally, the common
practice of continuously switching meter
ranges is essentially made obsolete by
the digital readout.
A further interesting feature of the PM
200 is the effective suppression of noise
by the signal preamplifier that is directly
build into the sensor head.
The ‘Sync Out’ output supplies
TTL pulses for synchronisation. In addition
the detector signal can be observed (e.g.
by an oscilloscope) using the BNC socket.
This output delivers a DC voltage proportional
to the measured pulse energy e.g. for
connecting a chart recorder.
Optionally the PM 200 comes equipped with
an intelligent RS 232 interface for remote
control and data acquisition via computer.
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