Application Examples
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Sound/Vibration vs. Rotation Speed Measurement System
Besides its sound and vibration connections, the RIONOTE Multifunction Measurement System is also equipped with a tacho pulse input which makes it possible to measure and analyze noise and vibrations linked to rotation speed.
The illustration below shows a system with two microphones mounted at the ear position of the driver of a vehicle, intended to analyze sound patterns during acceleration. The tacho pulse input can be used in conjunction with such a setup. In order to eliminate the need for extended cabling, the microphone signals are transmitted by the Wireless Dock SA-A1WD to the RIONOTE unit for processing. The wireless capability allows the RIONOTE to be placed either inside or outside the vehicle. Up to four RIONOTE units can be connected wirelessly to the SA-A1WD, making it possible to perform sound or vibration measurement and analysis in up to 16 channels (4 channels x 4 units). System Diagram
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Equipment configuration
| Product | Model |
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| Multi-function Measuring System (2 channel/4 channel FFT package) | SA-A1FTB2/SA-A1FTB4 |
| Wireless Dock | SA-A1WD |
| 2 channel/4 channel Amplifier | SA-A1B2/SA-A1B4 |
| SD card (512 MB/2 GB/32 GB) | MC-51SD1/20SD2/32SP3 |
| 1/2 inch electret condenser microphone | UC-59 |
| Preamplifier | NH-22A |
| BNC-BNC coaxial cable | EC-90 series |
| 1/2 inch microphone holder | UA-90 |
| Piezoelectric accelerometer (integrated amplifier) | PV-91C/97ｴ etc. |
| Accelerometer cable | VP-51 series |
| BNC adapter | VP-52C (Not required for charge output types) |
| Tacho sensor |
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Measurement result examples
 Sample screen for noise FFT analysis and rpm measurement
 Sample screen for second-pass FFT analysis of acceleration noise
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Application examples
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- Simultaneous FFT analysis of sound/vibrations during vehicle acceleration and rpm measurement (wireless or wired)
- Simultaneous FFT analysis of sound/vibrations of rotational machinery and rpm measurement (wireless or wired)