Olympus Sonic 1200S/HR, Руководство пользователя

Страница: 30 / 154

22 Chapter 2
+dB switch : Selectable 6, 12, 18, or 24 increment.
Accuracy: ±0.5 dB.
Tuning Range : Selectable 1, 2.25, 5, 10, 15(HR) MHz, wideband (0.3-15 MHz), and highpass
(3-20MHz).
Q: 0.9 less than or equal to Q less than or equal to 1.2
Linear Reject: 0 to 80% full screen.
Accuracy: ±0.5%.
Vertical Linearity: ± 2% full screen for 10% to 90% of full screen display .
Dynamic Range: > 34 dB (largest signal = 100% full screen height, smallest signal <= 2% full
screen height).
Sensitivity: Better than 200 µV.
Noise : <15 µV RMS
Display Modes : RF, RF+, RF-, fullwave, h, halfwave-, filter 1, 2, 3.
Thickness/RF : Thickness measure on live and frozen RF display modes.
DAC : Segmented with 25 operator selected points, segments generated automatically.
Range: 40dB, total of gain and DAC limited to 110dB maximum.
Accuracy: DAC range ±2dB, echo adjustment ±0.5dB.
Slew Rate: 6dB per µs.
Depth: Sum of timebase delay and range up to 400µs.
DAC Display: Selection of multiple curves showing compensation; single curve at signal level
(0 dB); three curves at +6 dB, 0, and -6 dB; four curves at +6 dB, 0, -6 dB, and -14 dB, JIS
curves at +6 dB, 0, -6 dB, and -12 dB, DAC compensated echoes only; single curves with
DAC compensated echoes.
Gates:
Gate Functions: Gate 1 time of flight, amplitude detection and flaw alarm. Gate 2 amplitude
detection and flaw alarm, time of flight for echo-to-echo mode.