Stroboscope Engineer

GyokovSolutions

Contains ads

About this app

Stroboscope app and optical tachometer for measuring rotating, vibrating, oscillating or reciprocating objects. Optical tachometer can be used by starting it from MENU - TACHOMETER.

It is most commonly used for:
- adjusting speed of rotation - for example adjusting speed of rotation of turntable
- adjusting frequency of vibration

How to use:
1. Start app
2. Set frequency of strobe light (in Hz) using number pickers
3. Press ON/OFF button to start the strobe light

- use button [x2] to double the frequency
- use button [1/2] to halve the frequency
- use button [50 Hz] to set frequency to 50 Hz. This is for turntable speed adjustment.
- use button [60 Hz] to set frequency to 60 Hz. This is also for turntable adjustment.
- activate duty cycle by checking [DUTY CYCLE] check box and adjust duty cycle in percentage. Duty cycle is the percentage of time per cycle when the flash light is on.
- optionally you can calibrate the app by starting calibration from MENU - Calibrate. It is good to do calibration when frequency is changed. You can also set correction time manually in Settings.

Accuracy of the stroboscope depends on latency of your device flash light.

Optical tachometer can be used by starting it from MENU - TACHOMETER.
It analyzes moving objects and determines frequency in Hz and RPM.
How to use:
- point the camera to the object and press START
- hold steady for 5 seconds
- result is shown in Hz and RPM

You can save images captured during measurement by clicking on disk icon. At the end of measurement a message will be shown with information how many images were saved. Images are saved in folder Pictures/Stroboscope. The name of the images ends with information how many milliseconds they were taken relative to first picture. You can use this information to determine the object RPM by calculating time between similar images.

Minimum and maximum frequency can be set in SETTINGS - TACHOMETER. Increasing minimum frequency will reduce time needed for measurement. Maximum frequency is 30Hz (1800 RPM). Reducing maximum frequency will improve time needed for processing during measurement.

Ratings and reviews

Great simple app that gets the job done (but not in sunlight). I used it to check the idle speed on my outboard. A bit of white duct tape on the flywheel and in twilight it worked well. Phone LED's are not bright enough to use in sunlight, and they aren't brief enough flashes to give a true photo grade strobe effect, but it got the job done. Ads are not obtrusive. An improvement would be a bigger frequency slider. It's hard to get the right spot when you are looking at the strobe device.

Likely I just did not know how to use it correctly. I got a spinning toy (similar to a top) and I wanted to know how fast I could spin it. I affixed a piece of reflective tape on it, got it spinning, and pointed the tachometer to it. Got approximately same result no matter how fast I spun it. Probably used incorrect settings or something.

Works really well, exactly what I needed!

What’s new

Stroboscope app
v11.6
- Android 15 ready
v11.5
- Added optical tachometer. Use it from MENU - TACHOMETER. The app analyzes moving object and determines frequency in Hz and RPM.
How to use:
- point the camera to the object and press START
- hold steady for 5 seconds
- result is shown in Hz and RPM
v10.8
- add up to 5 buttons for fast setting of favorite frequencies or RPM
- alternative strobe method in Settings - Use alternative strobe method