The sound of the blades will be analyzed and the according headspeed will be calculated.
Using Settings you can choose between standard (rpm up to 4000) and micro sized (rpm up to 8000) helicopter and setup the number of blades between 2 and 5.
Before starting the measuring you have to set an estimated headspeed. You can expect most accurate measurings if set inside the range of +/- 500rpm to your real headspeed.
Works with electric and nitro helis without changing any settings.
For best results please follow these instructions:
Make sure you have not too much side noise like strong wind.
After setting an estimated headspeed place your phone on the ground 1-2m from your helicopter.
Press the "Measure Head Speed" button and walk to a save distance.
Spool up the helicopter to your desired headspeed and wait about 20 seconds.
After the blades have come to a stop retrieve your phone and press the "Stop Measuring" button.
Now you can read the headspeeds during the measuring.
You can save the result to the log history using the menu option. If you enable the option "Save Log Automatically" logs will be saved automatically after finishing measuring.
Touch a log entry in the log history to view saved results. Long touch a log entry to send the entry or delete it.
Use log menu to send complete log history.
We want to increase accuracy and compatibility of this App. So please help us and send feeback to email@example.com
Please supply information about the phone and helicopters you measured the headspeed.
If you have any problems measuring correct headspeed please contact us at firstname.lastname@example.org
We will give you instruction about how to enable debug mode. This mode will write data to your SD card which can help us find a solution.
Tested by developer:
Phones: HTC Desire and Desire S
Helicopters: Align T-Rex 500, T-Rex 600, T-Rex 700E, T-Rex 700N, Blade mCPX
Tested by users:
Phones: HTC HD2, Motorola Defy and Droid X, Samsung Mesmerize
Helicopters: Mikado Logo 600, 600SE and 400SE, Align T-Rex 450, Concept Notos 500, Walkera 4G6 and M120D01, MSH Protos and Mini Protos
- Record audio: Needed to record audio from your mic.
- Modify/delete USB storage contents modify/delete SD card contents: Needed for debug mode
v1.0.1: Touch at rpm bar of log to display exact value.
v1.0.1: Debug mode (please contact us at email@example.com about how to enable debug mode).
v1.0.2: Improved algorithm and increased rpm search range.
v1.0.3: Dynamic adjustment of log rpm bar size.
v1.0.4: Prevent orientation change during measuring.
v1.0.5: Preserve measured data during orientation change.
v1.0.6: Successful license check is valid for one week to use the app on the field without internet access.
v1.0.7: Support for micro sized helicopters.
v1.0.8: Minor improvement for license check.
v1.0.9: Log added.
v1.0.10: Rename of Logentries. Sending of all measured data. Scrolling of measured data by swiping left or right.
v1.1.0: Scrolling of measured data by tap on arrow.
v1.1.1: Tap on log bar displays rpm in bigger letters.
v1.1.2: Fallback for device not supporting default audio format.
v1.1.4: Experimental low RPM mode.
Coming with a full money back guarantee. Try this first no other app has a higher precission or supports more motors and configurations up to 60.000rpm!:
electric RC-Helis and Planes with 2-5 blades
all Nitro Planes including Gears and Helicopters
all 2 or 4 Stroke Motors with any number of cylinders including normal Car Motors
full Frequency Analytics.
You will get a timeline over the measured rpm and a full rpm Distribution in the end of the measurement.
If you are not happy with this app. Please write me an email and you will get a full refund!
Through the calculation frequency, the sound is analyzed to determine the revolutions of an engine.
It is necessary to indicate the characteristics of the engine prior to reading.
May not work on all engines. It works worst with engines with the exhaust sound very muted and mechanical noise engines (air cooled engines).
It is normal to show some value even if no motor function.
Keywords: rpm, acoustic tachometer, sound, tach, rpm gauge, revolution counter, rev counter, rc, fft, tachometer
* permission.WRITE_INTERNAL_STORAGE is used for some Samsung-devices, because their LED is managed by writing data on the internal storage.
Includes an option to calc the required pinion by simply entering the desired head speed.
Enter your battery setup, motor KV, main gear and pinion.
Head Speed Calculator will calculate the estimated head speed, motor rpm and gear ratio depending on varying efficiency and cell load.
You can also enter a head speed to calculate the pinion.
Please use it for measuring the rotational speed of the motor, such as drivable model car.
It has featured focus for noise removal.
It has featured speed conversion panel.
It has featured memo panel.
It is also offering nice skins.
* Please measure in a state of only motor sound, for example remove the gear.
* Please measure as close to the motor microphone.
Includes an option to calc the required pinion by simply entering the desired head speed.
This is a Basic version, it displays Ads on the top of the screen.
The application is very easy to use - the smartphone screen is displayed speedometer with a special font that with the right size and quality is reflected in the windscreen. In addition, you can track the speed chart in the history of time saved automatically include data on the maximum and average speed, trip distance and the date of measurement.
NOTE: Read values can be difficult when the application is running in full sun.
Keywords: speed, tachometer free, free speedometer, speedometer PRO, graph, history, speed meter, measurement, speed meter, V-max
Esta aplicación, al momento de hacer una llamada, consultará de forma automática el número #RPM asociado al número movistar marcado.
Ya no tendrás que editar los números de tus contactos antes de llamar ni preocuparte por acabar tu saldo muy rápido!
Menú de configuración
- Convertir números fijos
- Usar SMS para la conversión (Depende del servicio de movistar)
- Sincronización solo por WiFi
- Ocultar icono de notificación
Use this speedometer if you check your speed.
Super Simplified User Interface and Light-weight this app is all good for your needs.
Also. supported HUD mode for car driving. (Only use night)
- Support various units for speed checking (km/h, miles/h, knots, m/s)
- Support Head-Up-Display (HUD Mode)
- Support Total Trip and Average speed
- Support Battery information to display
* Caution : Inaccuracy if your GPS in your device catch wrong signals. Check your device gps options
- Millisecond precision LED flashing
- Flashing to the beat of music
- Pattern flashing
- Audio tachometer mode
- Torch/flashlight mode
- Burst mode
- Adjustable duty cycle
- Flashing with screen off
The newest feature in this app is its ability to flash to the beat of music. This is great for parties because strobe lights make music more fun!
The primary feature of this app though is its extremely accurate stroboscope ability. Uses include everything from checking the RPM of your car engine, to calibrating a record turntable, and even to finding the speed of a spinning fan. With millisecond accuracy and adjustable duty cycle, spinning objects can be made to appear stationary.
The LED will continue to flash even if you quit the app, this makes it perfect for use when you need to be visible at night. Mount your phone on your bike or carry it with you walking so that cars will be able to see you clearly.
The new audio tachometer feature allows your phone to listen to a repeating sound and discover the fundamental frequency plus any harmonics. Then with a simple button press, you can flash the LED at that frequency and watch everything freeze.
Finally, the new pattern section allows you to flash your LED in any pattern you desire. With saving and importing, highly complex patterns can be programmed.
Give it a try! There's something for everyone. Whether you're a technical person or a partygoer, this is the strobe light app you want.
A quick note about different phone hardware: This app works flawlessly on some phones and pitifully on others. Before you say "this app is crap" send me an email and I'll see if I can get it working on your phone.
• The main function
And measurement of the rotational speed
• How to use
· Tap the "Start"
· Turn the motor
· Approach the motor to the microphone
· Rotational speed is measured
· Noise is large, it may not be recognized well
Will be easier to (5 or 10 times the average) recognition When you change the "Boundary value setting", but becomes easier if mistaken.
Using a testrecord with a 3150 Hz track you can record and adjust with your phone from the loudspeaker in an endless loop. The current speed relative to the nominal speed is visualized through a colored graphical indicator.
Measuring the speed this way is absolutely exact in contrast to using a traditional strobe disk. The signal can be recorded and then shown in a graphical chart view (frequency vs. time). Data can be managed in files on to storage. The frequency data can also be evaluated numerically.
*New*: in-app purchase to calculate wow in accordance to DIN IEC 386 (formerly DIN 45507). Expensive special equipment was needed before to do so!
* You need a record with the test tone. The Adjust+ testrecord is a perfect fit - others might work as well but no warranty. The app has a demo mode to test its functionality without a test record.
* Refunds are not supported for Google's in-app purchases. Please contact us at firstname.lastname@example.org in case of problems.
* On Honeycomb tablets, there might be problems with correct frequency detection because of echo cancellation. If so, please try to cover the 2nd microphone.
Details on Adjust+: www.adjust-plus.com
Initially we designed this app as an e-learning resource for our engineering students but it proved to be a very useful tool for professionals too.