RPMmtr 4+

Name: RPMmtr
Price: 49000 VND
Author: Andreas Bartl

Andreas Bartl

Được thiết kế cho iPhone

- 49.000đ

Ảnh chụp màn hình iPhone

Miêu tả

Engines, motors and rotating machinery generate periodic sound patterns. RPMmtr analyses those sound patterns to measure RPM (rotational speed) based on state-of-the-art signal processing technology.

The result of this estimation is shown in three different views. The tachometer view displays the rotational speed at a glance. The color of the dent indicates how clear the measurement is. You can swipe the red ring control and improve the result by specifying the expected RPM range.
The tracking view shows the evolution of the rotational speed over time. The accuracy of the measurement is indicated by the size and color of the circles.
Experts can use the spectrogram view: the graph shows the frequency distribution of the sound. Small arrows show the rotational speed. Adjust the axes scaling by a swipe with one finger.

Notice on usage:
The app can estimate the correct rotational speed only in cases if the sound is very clear (i.e. the rotating device generates clear periodic sound patterns with one frequency) and there is no background noise.
RPMmtr is for educational purposes only. We do not take responsibility for decisions taken by the reader based solely on the information provided in this app.

20 thg 10, 2021

Phiên bản 1.5

- Analysis quality warning
- Predefined suggestions for RPM ranges
- Correction factor for dominant harmonic order

Nhà phát triển, Andreas Bartl, đã cho biết rằng phương thức đảm bảo quyền riêng tư của ứng dụng có thể bao gồm việc xử lý dữ liệu như được mô tả ở bên dưới. Để biết thêm thông tin, hãy xem chính sách quyền riêng tư của nhà phát triển.