Features

Linear Actuators

Haydon Switch & Instrument (Waterbury, CT) now offers its size 14 hybrid linear actuators with an integrated connector. Offered alone or with a harness assembly, this connector is RoHS compliant and features a positive latch in order for high connection integrity. The connector is rated up to 3 amps, and the mating connector will handle wire gauges from 22 to 28. The actuator is ideal for those that want to plug directly into pre-existing harnesses.

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Precision Tensioning Brake

Placid Industries’ Hystereis brakes features the company’s patented Cog-Buster to automatically smooth braking torque. Frictionless torque is produced by internal magnetic fields rather than contact between parts. Slip torque is smooth, accurate, and reliable, with long term stability and wide speed range. Even high slip RPM causes no wear. Torque is smooth even near zero RPM. Units from 0 to 11 oz.-in. to 0 to 250 oz.-in. rated torque, with heat dissipation to 110 watts are available from stock.

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Clutch/brake Module

Warner Electric’s Gen 2 electromagnetic clutch/brake modules feature several enhancements in performance and appearance, compared to the original C-Face design.

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Thermographic Imaging Selecting an IR Camera with the Right Detector

The thermographic imaging characteristics of an IR camera are largely determined by its detector assembly. Infrared radiation (IR) is focused onto the camera’s detector assembly, which is a focal plane array (FPA) that converts IR into a visual image depicting temperature variations across the camera’s field of view (FOV). The FPA consists of thousands of pixels, which could be fabricated from any one of the IR sensitive materials commonly used in these cameras. Most detector materials respond to a selected portion of the IR spectrum (Figure 1). Therefore, a camera selected for any given application should have the appropriate FPA material based on the IR characteristics of objects within the FOV and the user’s study objectives.

Posted in: Articles, Features, ptb catchall, Photonics

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Photonics Tech Briefs Announces 2007 Products of the Year

The votes are in and the winners of the 2007 Photonics Tech Briefs Readers’ Choice Product of the Year Awards have been selected. The three PTB Products of the Year will be presented at a special awards reception and dinner in New York City on April 22.

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Product of the Month: 1940nm Diode Laser Arrays

DILAS (Tuscon, AZ) has introduced the first commercially available high-power diode laser arrays operating at 1940nm with wall plug efficiencies (WPE) of >10-percent.

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Pyroelectric Detectors

Spectrum Detector (Lake Oswego, OR) manufactures the LiTaO3 Pyro-electric Detector Hybrid for use in applications including energy measurement, power measurement, radiometry, spectral radiometry, and FTIR and IR Gas analysis. The large area, 9 mm spectrally flat pyroelectric detectors are offered in either a voltage or current mode circuit with NEP in the nW range and Rv as high as 13,000 V/W. An optional organic black absorbing coating adds flat spectral response from 0.25 to 14.0 μm.

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