By Apptomic LLC
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-Instantly measure distances with high frequency sonic pulses
-Color coded echo location display
-Simple easy to use interface
-US and Metric units configurable
-MUST MEASURE OBJECTS MORE THAN 2.5 FEET AWAY (PLEASE READ THE INSTRUCTIONS)
Bats navigate through the night air by emitting high frequency sonic pulses and listening for echoes. Submarines use a similar technique to determine the distance and location of underwater targets. Now you can have bat-like vision on your iPhone with Active Sonar!!
Active Sonar emits a high frequency sonic pulse and listens for echoes that that bounce off of objects. The distance the echo has traveled is instantly computed and graphically displayed in a color coded format showing the distance and strength of the echo. Active Sonar will allow you to instantly and accurately measure the distance to objects, such as a wall, up to 12 feet away.
How does Active Sonar work?
Once Active Sonar emits a high frequency sonic pulse, any return echoes that bounce off of objects are detected using iPhone’s built-in microphone. The amount of time that has elapsed from emitting the sonic pulse to detecting the return echo is used to calculate the distance the sonic pulse has traveled. Given the know speed of sound at a particular room temperature (approximately 1125 ft/s), the distance the sonic pulse has traveled can be computed by multiplying the speed of sound by the amount of time the sound has been traveling. Using this calculation, Active Sonar instantly computes the precise distance the echo has traveled.
Active Sonar is easy to use!
Step 1: Turn up the volume.
Step 2: Point iPhone’s built-in speaker at an object.
Step 3: Turn on Active Sonar.
Following these three simple steps will enable you to see with bat-like vision!!
-Only measure objects more than 2.5 feet away from the iPhone
-Noisy environments can interfere with measurement accuracy
-Please read the instructions in the app by touching the info button just above the on button
What's New in Version 1.1
-Per customer reviews I have moved the ad banner.
-Improved range finding.
-Fixed some small bugs.
Please write a review if you suggestions on how to improve this app.
works fine if you understand sonar
what did you complainers expect?
the motion scanner from A L I E N S ?
( it kind of sounds like one :)
follow the directions then walk around and the graph will develop as you get closer then further.
of course there's alot of random noise. the ping bounces of everything, including you. that the programmers have figured out how to highlite what's in front is impressive.
to better appreciate what you have, watch a documentary on early ASDIC.
Now about that colonial marines scanner... it would need a microphone in stereo ( ears ). maybe it will be in the 4Gs. or Verizon will beat them to it.
I'm impressed with this app, and think it works reasonably well as long as you follow the instructions in the "info" button. I also think it helps for the room to be fairly quiet so the microphone can pick up the correct sounds.
Give it an honest try and I think you will be pleased.
P.S. The instructions clearly state that the object needs to be at least 2.5 feet away, not just a few inches like some of you that have posted bad reviews have tried. Once again, follow the instructions. It works!
I had my doubts
This app is very impressive. Granted the the hardware is limited but the app makes use of what there is. The spectra graph the important part to me. Note to developer: to shut up the whiners who complain about not having a circle graph next time just take polar data by using the compass and convert to rectangle form and graph to create a 2d map of a room and thus make a classic "circle graph" like in the app icon.
- Category: Utilities
- Updated: Sep 28, 2009
- Version: 1.1
- Size: 0.9 MB
- Language: English
- Seller: Apptomic LLC
- © Apptomic LLC
Compatibility: Requires iOS 2.2.1 or later. Compatible with iPhone.