Laser Energy Meter With High Dynamic Range0 pages

Laser Energy Meter With High Dynamic Range

High sensitivity Analogue and digital display low noise Computer interface and software available Incl. pyroelectric detector with meter ranges from 3 J to 200 mJ 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 ener-gies from the detection limit at 3 յJ up to high-
est 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 others, 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 me-ter 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 Outђ output supplies TTL pulses for synchronisation. In addition the detector signal can be observed (e.g. by an oscilloscope) us-ing the BNC socket. The Out 0..5 Vђ BNC socket 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 con-
trol and data acquisition via computer. Standard High Sensitivity High Damage Ranges 3 J Ֆ 200 mJ 0,5 J Ֆ 20 mJ 50 J Ֆ 20 J energy density 150 mJ/cm 150 mJ/cmҲ 1 J/cm (308 nm) power density 8 MW/cmҲ (10 ns Pulse) 8 MW/cm (10 ns Pulse) 50 MW / cmҲ (308 nm) average power 400 mW 400 mW 10 W active area 34 mm ؘ 34 mm 45 mm Scitec Instruments Ltd ط Bartles Industrial Estate North Street ׷ Redruth TR15 1HR ׷ United Kingdom Tel: +44 (0)1209 314 608 Fax: +44 (0)1209 314 609 ׷ www.scitec.uk.com scitec@scitec.uk.com >