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FO-ALS and FO-SR-04

FO-ALS and FO-SR-04 fiber-optic light sensor

Changes in the brightness of a lamp or indicator during an EMC test, measured from 1 to 10 000 lx and sent out over fiber.

1 to 10 000 lx
Illuminance range
1.5 kHz
Bandwidth
390 to 700 nm
Wavelength range
60 h
On 3 AA alkaline batteries
  • Sensor channels2, with different sensitivities
  • EMC validation200 V/m, 500 kHz to 18 GHz
  • Pulsed field600 V/m, 1 to 2.5 GHz
  • Dimensions172 × 76 × 25 mm

From dome lights to high beams

The FO-ALS measures changes in illuminance from light sources, over a range of 1 to 10 000 lx. That covers dome lights, indicators and even high-beam headlights.

Its two sensor channels have different sensitivities. Together they give a large dynamic range and keep sensitivity at low light levels. Bandwidth is 1.5 kHz, over wavelengths from 390 to 700 nm, and 3 AA alkaline batteries last 60 hours.

Shielding and input filtering protect the FO-ALS from EMI, EMP and the high voltages of plasma research. It is validated for EMC up to 200 V/m from 500 kHz to 18 GHz, and 600 V/m pulsed (5 % duty cycle, 5 µs rise time) from 1 to 2.5 GHz.

FO-ALS and FO-SR-04, view 2

Specifications

Illuminance range1 to 10 000 lx
Wavelength range390 to 700 nm
Channels2 (different sensitivities)
Bandwidth1.5 kHz
Battery life60 h
Battery typeAA alkaline (3 batteries)
Dimensions172 × 76 × 25 mm
EMC immunity, radiated field200 V/m (46 dBV/m)
EMC immunity, pulsed field600 V/m (5 % duty cycle, 5 µs rise time)

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