| 시설장비 설명 |
(1) 과제와 관련한 활용계획 - 발파진동 측정 (2) 과제종료 후 활용계획 - 열차진동 측정 등 (3) 공동활용계획 (내부 및 외부기관) - 원내 열차진동 측정 시험에 활용 - Dynamic Range: 144 dB (system), 110 dB (instantaneous, measured) at 2ms, 24 dB. - Distortion: 0.0005% @ 2 ms, 1.75 to 208 Hz. - Bandwidth: 1.75 Hz to 20 kHz. Low corner frequency option available. - Common Mode Rejection: > 100dB at <= 100 Hz, 36 dB. - Crosstalk: -125 dB at 23.5 Hz, 24 dB, 2 ms. - Noise Floor: 0.20 uV, RFI at 2 ms, 36 dB, 1.75 to 208 Hz. - Stacking Trigger Accuracy: 1/32 of sample interval. - Maximum Input Signal: 2.8V PP, 0 dB. - Input Impedance: 20 kOhm, 0.02 uf. - Preamplifier Gains: Software selectable between 24 or 36 dB. Can be - jumpered to allow software selection of 12 or 24 dB or jumpered to 0 dB2. - Anti-alias Filters: -3 dB at 83% of Nyquist frequency, down 90 dB. - Acquisition and Display Filters: Low Cut: OUT, 10, 15, 25, 35, 50, 70, 100, 140, 200, 280, 400 Hz, 24 or 48 dB/octave, Butterworth. Notch: 50, 60, 150, 180 Hz and OUT, with the 50 dB rejection bandwidth 2% of center frequency. High Cut: OUT, 250, 500 or 1000 Hz, 24 or 48 dB/ octave. 속도감지기(Geophone)를 이용한 진동측정 -발파진동측정 -열차진동측정 |
