STROBE TACHOMETERWhen the flicker frequency of light coincides with the speed of any object, such as a fan, the rotating fan may appear to be stationary. Changing the frequency of the flicker of light may help detect the rotation speed. Update time 2-5 sec.

Strobe tachometer (RPM meter) alternatives

Signal Generator: Audio Test Tone Utility

Signal Generator is an app that produces audio test tones. The basic app produces sine waves, and it can be extended and customized (via in-app purchases) to produce white noise, pink noise, frequency sweeps, and (on iPhone 4 and better) square waves, sawtooth waves, and triangle waves. This app can be used to: Test Speakers and Headphones Balance your Home Theater System Tune Your Car Audio System Mask Environmental Noise Burn In Headphones Tune Musical Instruments

  • size 7.9 MB

VibSensor - accelerometer recorder, vibration analysis, and data export

VibSensor is a vibration meter geared to science and engineering applications where quantitative accelerometer and vibration data are needed. It turns your mobile device into a vibrometer or seismometer, with easy collection, data storage, and email of data. Capture vibrational resonances and magnitudes, or even use it like a seismograph to capture an earthquake

  • rating 4.33333
  • size 45.9 MB

Galactica Luxmeter

If you professionally deal with lighting or simply want to measure the illumination of the certain place, and you do not have a special device, you can use this application to make light measuring, combine the values obtained (lux) with a photo of your place of measurement, add your comments and save your image in photo album or send via e-mail. This app is used for evaluative light measuring and is not a substitute for specialized device. The ability to change manually the calibration coefficient (Optional).Ability to change manually the results of measurement (Optional).

  • size 3.4 MB

Audio Signal Generator including Sweeps & Noise

This is the highly recommended and praised Function Generator App - an amazingly great and powerful tone generator. Enriched with a vast amount of features yet it is extremely intuitive and designed for simplicity. The Function Generator is AMAZINGLY INTUITIVE and SIMPLE AND THESE ARE THE ADVANCED SETTINGS/FEATURES (upgrade to PRO required):=> Extending The Frequency Range=> Extending The Sweep Times=> Changing Min/Max Slider Frequency Ranges => Changing Max Sweep Time Slider Range=> Changing Signal Amplitude=> Enabling Of The Sweep Repeat / Wobble Function=> Frequency Slider Setting to Linear or Logarithmic=> Left/Right Channel Individual Selection=> Permanently Saving Custom Presets=> Saving Of Endless Number Of Audio Configurations=> Phase Out Setting (Phase shift of 180 of the generated signal)=> BPM (Beats per Minute) Feature=> Dual Function Generator=> Background Theme Selection (Light/Dark)

  • size 18.9 MB