Flicker measure principle introduce

Flicker Test System also known as stroboscopic still or tachometer, is an optical measuring device that can change a vibrating, high-speed rotating or periodically moving component into a “stationary” component.

Flicker Test System itself can emit a short and frequent flash, and its flash speed can be set by the user according to needs. When the flash frequency of the stroboscope is adjusted, the flash time of the stroboscope is generally about several to tens of subtleties. When these frequent flashes shine on the object, making it close to or synchronized with the rotation or movement speed of the measured object; Although the measured object is moving at a high speed, it seems to be moving slowly or relatively stationary. This visual persistence phenomenon makes it easy to observe the surface quality and operation of the high-speed moving object visually The flash speed of the stroboscope is the rotation speed and motion frequency (printing bag) of the detected object (such as motor). The stroboscope can also be used to analyze the vibration of the object, the action of the high-speed moving object and high-speed photography Stroboscope observation and inspection technology has been widely used in Europe and America. With the rapid development of China’s economy, more and more industries begin to use stroboscope to help solve the problem of product quality inspection.

Composition and working principle of Flicker Test System
1. The Flicker Test System has a complete system, including:
Man-machine display interface, adjustment and function selection keys, flash control module, flash power supply module, external trigger automatic tracking module, etc.

2. working principle of strobe lamp:
Controlling the flash frequency of the flash lamp according to the set frequency or the external trigger frequency; In the system design, LED digital tube is used as the man-machine display interface. LED display has the characteristics of high brightness, long service life and convenient control. As long as the reliability of the driving circuit is guaranteed, the long-term stability of the human-computer interface can be guaranteed In terms of parameter setting or function selection, Omron touch button with high reliability and rotary encoder with fast adjustment function are used as data input components, and reasonable software is provided to improve the speed and convenience of parameter setting As a convenient product, it must have the function of saving parameters. Here, nonvolatile memory is used to store parameters such as frequency and working mode In order to achieve the effects of convenient use, stable performance and control, the design of the whole software system is very important In addition, there is a core and difficult technology in the strobe lamp control system, which is to ensure the stability of the power supply voltage of the strobe lamp Only by ensuring the stability of the voltage can the brightness of the flash tube be consistent, and the flash lamp will not leak under the condition of high frequency It is difficult to control because the power consumed when the lamp flashes in different frequency bands is variable When strobe lamp is used as light source for printing quality inspection, a higher requirement is put forward for the performance of strobe lamp The time from the flash lamp receiving the trigger signal to the lamp tube flashing must be the same, so the program control and circuit design are more important.

Why measure stroboscopic?
Stroboscopic damage, stroboscopic measurement, stroboscopic influence stroboscopic refers to the problem that the light source produces small, frequent and periodic flashing, which only occurs in some specific lamps Human eyes are not easy to detect this stroboscopic phenomenon when most light sources produce it However, many international organizations pay close attention to this issue, because “stroboscopic” is pointed out to be a key factor triggering human health problems, and stroboscopic hazards to human body include epilepsy, headache, fatigue, decreased visual efficacy of eyes, distraction and visual impairment.

Therefore, LISUN launched LSRF-3 Lamp start, Run-up time and Light Flickering Analyzer – Flicker Tester is equipped with Class A fast photometric probe, so the sampling speed is up to 100kHz. It fully meets the requirement of BASIC, Energy Star V2.1, IEC TR 61547-1:2020 IEC-Pst, CA CEC, ASSIST, CIE TN006-2016 CIE SVM, IEEE Std 1789 standards, etc. It is professional for flicker test of LED lights and lamps, energy-saving lamps, etc. According to EU directives 1194/2012, 2009/125 / EC, SASO2902, COMMISSION DELEGATED REGULATION (EU) 2019/2015, COMMISSION REGULATION (EU) 2019/2020 and IEC60969 “Self-ballasted Lamps for General Lighting Services—Performance Requirements” and other requirements. The LSRF-3 can connects with PC via USB cable. The English version software can be run in Win7, Win8 and Win10, Win11 (The driver was Certificated by Microsoft)

LMS-6000F (LMS-6000 Parameters)+Flicker test Standards: Fully meet CIE 177, CIE-13.3 , Optical-Engineering-49-3-033602, and IEEE.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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Tags：LMS-6000F , LSRF-3