MEASURE
any light source

Flicker-BT
Flicker Test Accessory
Benchtop meter for illuminance and flicker analysis

Why flicker analysis is needed
The health effects of flicker are divided intovisible and invisible flicker. In the visible domain,frequencies in the range ~3 to 70 Hz represent arisk of seizure in those with photosensitive epilepsy.
In the invisible domain, at higher frequencies,
migraines, headaches, eye strain and non-specificmalaise may result. Some SSL systems, particularly
those paired with dimming controls, demonstratesignificant photometric flicker. Now Labspheremakes it easy to measure flicker metrics withFlicker-BT software.
Fast integration
Flicker-BT is a high-speed illuminance meter
designed to measure temporal lighting artifacts.
The sensor is integrated with a signal condition
module that connects directly to a PC. No external
power is required. Data acquisition and analysis
is performed with the Flicker-IP software.

Features and reporting• Selectable Sampling Rate• Selectable Scan Duration (Measurement Period)• Selectable Recording Intervals• Lamp Light Output Periodic Frequency• Percent Flicker• Flicker Index• Stroboscopic Visibility Measure (SVM)• Short Term Flicker ( Pst )• ASSIST Flicker Perception Metric ( Mp )• Digital Exportable of RAW Data*• Fraction of Rated Light Output Integrated
over Measurement Period• Percent Amplitude Modulation
at Selected Frequencies• Precision Cosine Receiver• Robust Carry and Storage Case

*excluding Pst

Advancing the Technology of Light: Measure. Create. Reflect.

sales@labsphere.com

www.labsphere.com© 2020 Labsphere, Inc. All Rights Reserved
PB-14084-000 Rev 02

Ordering Information

Model Name: Flicker-BTOrder Number: AA-01510-100
Includes: flicker sensor, condition electronics, mounting post and base,  
Flicker-BT software, and Illuminance calibration and storage sleeve.

Specifications

Sensor:Photometric Range:
Input Optic:
Cosine Response:
Sampling Rate Range:
Data Recording Rate:
Recording Interval:
Equipment Measurement Period Range:
Measurement Time Range:
Percent Flicker Range:
Flicker Index:
Lamp Light Output Periodic Frequency Range:
Stroboscopic Visibility Measure: ( SVM )ASSIST Flicker Perception Metric: ( Mp )Fraction of Rated Light Output Integrated
over Measurement Period Amplitude:
Modulation Unfiltered:
Software:
Interface:Computer Requirement:
Cable Length: (from sensor to USB)
Dimensions: (sensor head)
Weight:Mounting:

FFT Plot

Advancing the Technology of Light: Measure. Create. Reflect.

Options:
Posts: 1 to 12 inches
Post Holders
Base Plates: 4 x 4 in2 to 8 x 8 in2

Broadband silicon photodiode diode filtered for Vl response
380 nm to 780 nm
Diffuser window< 9%
Low: 10 Hz High: 5000 Hz
5 kHz with internal sample rate of 20 kHz
0.1 to 0.0002 sec
12 seconds
120 ms to 12 s
0 -100%Reported
0-2500 Hz
Reported
Reported
100%, 20% and minimum fraction of light output
At 1000 Hz, 400 Hz, 200 Hz, 90 Hz and 40 Hz cut off frequencies
Flicker-BT
USB 2.0
PC or laptop with Windows 7 or newer
80 in (20.4 cm) + 2 m extension
1.5 in diameter x 1.1 in (3.81 x 2.74 cm)
0.40 lbs  (0.18 g)
Mounts on Labsphere’s 0.5 inch integrating sphere port frame
8-32 mounting boss for benchtop use

Temporal Plotsales@labsphere.com

www.labsphere.com© 2020 Labsphere, Inc. All Rights Reserved
PB-14084-000 Rev 02