PirePlus Infrared Emitter
Jul 2010Cal Sensors Inc. (See Opto Diode Corporation)
SANTA ROSA, Calif., July 26, 2010 — Cal Sensors Inc.’s PirePlus consists of the Pire high-speed infrared emitter and an integrated drive electronics module. The components have been designed as a system to provide maximum output over a range of pulse frequencies.
Key features of the high-output emitter include 0.04 W/cm2 at 1 in. from the filament, low overall system costs, a compact TO-5 package, a 14-pin integrated circuit board, broadband output with 88% emissivity, adjustable pulse rates with 0 to 5-V control circuitry, mean time to failure of >26,000 h at maximum rated power, and software support of custom pulse configurations.
Designed to maximize output over a 1- to 200-Hz range of pulse speeds, the Pire emitter (SPF220-5M2) has been designed to optimize heat-up and cool-down performance of the filament, producing typical pulse frequencies of 180 Hz at 50% modulation depth.
The associated drive electronics are matched to the emitter to provide the optimum drive waveform over a range of frequencies and to ensure peak output temperatures at all frequencies.
Together these components provide the customer with a convenient source of pulsed infrared energy that can be used to improve the performance of infrared detection systems. Their construction and implementation optimize performance by matching the drive waveform for the desired operating frequency, ensuring peak output temperatures at all pulse frequencies and promoting high output for any application.
Emitter voltage is 3 V minimum and 12 V maximum. Typical pulse frequency is 100 Hz, typical frequency control voltage is 2.5 V, and emitter resistance is 2.5 Ω. Peak emitter current at 12 V is 5 A, and maximum emitter current at 12 V is 220 mA. Operating temperature is from -30 to 100 °C, and spectral output, with sapphire window, is from 0.35 to 6 µm.
Applications include gas analysis, medical and industrial, environmental monitoring, spectroscopy, process control systems and plastics sorting.