壁面せん断応力センサー MicroS™
| 型番 | MicroS™システム |
| Description | optical MEMS-based velocity gradient sensor、SensorDrive™、and BP-MicroS™ burst processor |
| Measurement | time-resolved velocity gradient normal to the wall |
| Principle of operation | Laser Doppler Velocimetry based on diverging fringes |
| Laser | pigtailed laser diode wavelength: 658 nm power: 15 mw fiber optic cable length: 3m (other lengths available) |
| Measurement volume | size、dY x dZ x dX: 30um x 30um x 15um、typical working distance in air: 105um, in water: 140um fringe divergence rate: 0.066、typical |
| Sensor body dimensions | 17 mm diameter x 30mm length、other packaging available |
| Photo detector dynamic range | DC - 10 MHz; DC - 100 kHz with higher sensitivity also available |
| Active tunable filter | 2 channels、40dB gain、3Hz ～ 2MHz、LP、HP、BP、others available |
| Digitizer | sampling rate: 100 MS/s timestamp resolution: 2 ns max. output burst data rate: 10 kHz deep memory: 16MB; 32MB optional |
| Doppler frequency | range: 1kHz ～ 10 MHz |
| Wall shear stress | range (based on 10 MHz APD): 0.7 to 6,500 Pa (water) 0.015 to 140 Pa (air) |
| Software | National Instruments LabView® Runtime Engine outputs: Twi, i = 1、N,Tw bar、Tw rms、time of arrival、SNR |
| PC requirements | Win 2000 or XP®、 Intel Pentium4® or better |
| Power | 120 VAC/ 5 amps (220 VAC available) |
| Operating temperature range | 5 ～ 40℃ |
| Option | BandPass filter |
- 壁面せん断応力センサー MicroS™
249KB - 壁面せん断応力センサー MicroS™仕様書 74KB
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