Strobe Light
Free AppAbout Strobe Light
Suppose you have a rotating or oscillating piece of equipment (eg. a spinning shaft, vibrating rod), and you want to know how fast it is moving, this app can help you. If the strobe light that flashes at the same speed as the vibration or rotation, the item will appear to ‘freeze’ under the strobe light. You know the frequency of the flashing light, so you can tell the frequency of the vibration or the speed of the shaft.
To Use
Dim the ambient lights until the strobe is the dominant light source. Shine the light at the item spinning / vibrating and adjust the frequency until the item appears to be still. The frequency of the light is the same as that of the object and you can read off the frequency (HZ) or speed (RPM). Start high and work your way down.
Caution
If your light frequency is 1/2 or 1/3 or 1/4 x or any exact proportion of the shaft speed, the shaft will also appear stationary. This is called a harmonic. To ensure you don’t have a harmonic, double the frequency and check again. The highest frequency with effectively 'stops' the motion of the shaft is the true frequency.
Health Caution
Flashing lights occasionally cause epilepsy or other troubles in some people. If you feel unwell using this app then stop. This app is a tool, not a toy, please be careful.
Here is a good video about how to use this tool: http://www.youtube.com/watch?v=MqLwgisyjjw
To Use
Dim the ambient lights until the strobe is the dominant light source. Shine the light at the item spinning / vibrating and adjust the frequency until the item appears to be still. The frequency of the light is the same as that of the object and you can read off the frequency (HZ) or speed (RPM). Start high and work your way down.
Caution
If your light frequency is 1/2 or 1/3 or 1/4 x or any exact proportion of the shaft speed, the shaft will also appear stationary. This is called a harmonic. To ensure you don’t have a harmonic, double the frequency and check again. The highest frequency with effectively 'stops' the motion of the shaft is the true frequency.
Health Caution
Flashing lights occasionally cause epilepsy or other troubles in some people. If you feel unwell using this app then stop. This app is a tool, not a toy, please be careful.
Here is a good video about how to use this tool: http://www.youtube.com/watch?v=MqLwgisyjjw
All Application Badges
Free
downl.
downl.
Android
2.3.3+
2.3.3+
Android app
App History & Updates
More downloads Strobe Light reached 10 000 - 50 000 downloads
More downloads Strobe Light reached 5 000 - 10 000 downloads
More downloads Strobe Light reached 1 000 - 5 000 downloads
What are users saying about Strobe Light
Q
by Q####:
by Q####:
Strobe won't even sync even after buying pro version. Simple 1800 rpm shaft, no fine tuning at all. Adjustments are done with increments of 5 rpm...far too many. Buddy bought 'strobe light' app and it works far better.
Q
by Q####:
by Q####:
Doesn't work at anything higher than a thousand rpm for me. it's trying to use the full brightness of the led and it's not able to cycle that fast. Try stroboscope
Q
by Q####:
by Q####:
Set the Hz to 1.00 , it strobed 50 times per minute. Should have been 60. Conclusion, not accurate enough to have a purpose. Ie garbage.
K
by K####:
by K####:
I Uninstalled as strobe was inconsistent on galaxy S7Edge
Q
by Q####:
by Q####:
Figured out my tachometer was wrong with this. Handy technician tool.
Q
by Q####:
by Q####:
Nothing happens, no adjustment or instructions.
Q
by Q####:
by Q####:
Nexus 6p doesn't work, no strobe at all
Q
by Q####:
by Q####:
The best looking app yet, at least. But like the others, it does not work at all for me.
E
by E####:
by E####:
Suck app ..I pay to unlock and don't work
Q
by Q####:
by Q####:
Doesn't work at all on Huawei P9 lite
Q
by Q####:
by Q####:
Doesn't work with Nexus 6p
Q
by Q####:
by Q####:
It doesn't even turn on light at lowest setting, no strobe at all.
X
by X####:
by X####:
Good concept and interface but doesn't actually strobe at the speed it says
A
by A####:
by A####:
Doesn't work
I
by I####:
by I####:
It's so stupid
Q
by Q####:
by Q####:
Nice interface but not working at all on LG G4. The LED does not turn on at all.
Q
by Q####:
by Q####:
Waste.not working
A
by A####:
by A####:
Doesn't work
Q
by Q####:
by Q####:
A good application but need to make numbers ...
D
by D####:
by D####:
Can not change the Hz so basically worthless....
Q
by Q####:
by Q####:
Slightly inaccurate
Q
by Q####:
by Q####:
Not accurate
B
by B####:
by B####:
Terrible
I
by I####:
by I####:
Strobe intermittent on a Galaxy S7 edge. Nice idea though
M
by M####:
by M####:
Tried to turn on strobe. Nothing happened.
Q
by Q####:
by Q####:
Doesn't work at anything higher than a thousand rpm for me. it's trying to use the full brightness of the led and it's not able to cycle that fast. Try stroboscope
P
by P####:
by P####:
no other stobe apps are this good. No other app turns light on/off this fast. I don't know how accurate this is but it actually works.
Q
by Q####:
by Q####:
Set the Hz to 1.00 , it strobed 50 times per minute. Should have been 60. Conclusion, not accurate enough to have a purpose. Ie garbage.
Q
by Q####:
by Q####:
Used this app twice. Upon second use, the light stopped working!
Q
by Q####:
by Q####:
DOES NOT WORK. WHY
X
by X####:
by X####:
Very intermittent and long flashes on galaxy s6 sm-g920i
L
by L####:
by L####:
Doesn't work
Q
by Q####:
by Q####:
Not working on Nexus 5
Q
by Q####:
by Q####:
That good
P
by P####:
by P####:
Just asks for money. No light. Stupid.
A
by A####:
by A####:
Installed it, de-installed it, reinstalled it... Won't work. Bin.
R
by R####:
by R####:
App doesn't do anything.
M
by M####:
by M####:
Far from accurate
T
by T####:
by T####:
Does not flash accurately enough to sync with 1200 rpm fan , using Galaxy s3. Found another similar app that worked.
by Q####:
Great app was able to compare this app vs. a automotive timing light and to my surprise this app does work. Not sure what all the negative feedback is from.... A possibility that their devices were not compatible with the app. Works great on my LG Stylo II.