

Pressing the keys on a piano causes a hammer to strike a string causing the string to vibrate and produce sound. The musical score to the right defines the frequency (notes) and volume (intensity) that a musician should play to create a specific musical sound.

How does this work? Lets consider a music analogy. The TA Arrow Speed App lets the user select any part of the sound trace and compute the Fourier Transform of the data (also called the Power Sepctrum) to determine the frequencies and amplitude of each bow vibration. Use the ProChrono Digital, to review of high, low, average, extreme spread, standard deviation, and number of. Now the scientists and engineers reading this post are probably thinking that it would be really cool to perform a Fourier Transform on the data to calculate the specific frequencies of bow and string vibration. By comparing the sound of a shot with and without a string dampener or limb silencer it is possible to determine if these products are making a difference on shot noise. The more the parts of your bow vibrate the louder the sound produced. The faster the parts of your bow vibrate the higher the frequency of sound produced. Each competitor understands and agrees that they may be required to shoot through the designated on-site chronograph and an arrow shot through the chronograph. In this example, the ringing at the end of the trace has a primary frequency of 350 Hz (oscillations per second) The height (amplitude) of the oscillations are directly related to volume. The frequency of the oscillations recorded on the trace is directly related to the frequency of the mechanical ringing of the bow. It has a characteristic shape which starts with the click of my arrow release, a build up of sound as the string and limbs start to move, and then a long (50 milli second) tail due to the ringing of the bow limbs and string after release. Compatible with the ProChrono Indoor Light Kit. Requires one 9 volt battery (not included).

Comes with a ProChrono DLX chronograph, four guide wires, two diffuser hoods, and operating booklet.
#ARCHERY CHRONOGRAPH BLUETOOTH#
You can connect wirelessly to a Bluetooth mobile device using the free ProChrono DLX app. The optical chronograph measures speed using two light sensors separated by a precisely. Measure the velocity of any projectile from 20 to 9,999 fps. The figure to the left is the sound of a typical bow release. 1) Optical Chronographs are the gold-standard for speed measurement. You can zoom in and out on this data to see the finer details of the sound of your shot (or any other sound source that you want to study). Using the TA Arrow Speed App you can can make an audio recording of your bow.
