OmniScan MX ECA
OmniScan MX ECA fra Olympus kan bruges til inspektion af rør og komplekse geometrier. OmniScans databehandling og de fleksible prober med flere spoler gør det muligt at visualisere revnerne og bestemme deres nøjagtige placering ved hjælp af encoder. ECA er, populært sagt, for hvirvelstrøm hvad Phased Array er for ultralyd.
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Beskrivelse
Den velkendte OmniScan med ECA (Eddy Current Array) kan visualisere indikationer direkte på skærmen. Data kan fremstilles så det ligner resultatet fra penetrant- eller magnetprøvning.
Specifikationer
| OmniScan MX | Overall dimensions (W x H x D) | 321 mm x 209 mm x 125 mm (12.6 in. x 8.2 in. x 5.0 in.) |
| Weight | 4.6 kg (10.1 lb), including module and one battery | |
| Display | 21 cm (8.4 in.) TFT LCD Display, 800 pixels x 600 pixels, 16 million colors | |
| Power supply | Smart Li-ion batteries (up to 2), and DC-in voltage 15 V to 18 V (min. 50 W) | |
| Battery Life | Minimum 6 hours with two batteries; minimum 3 hours per battery under normal operating conditions | |
| Data storage | CompactFlash card, most standard USB storage devices, or through fast Ethernet, internal 32-MB DiskOnChip | |
| I/O ports | 3 USB ports, Video output Video out (SVGA), Ethernet 10/100 Mbps, 2-axis encoders, 4 digital inputs (TTL). | |
| Operating temperature range | 0 °C to 40 °C; 0 °C to 35 ºC with 32:128 PA (32 ºF to 104 ºF; 32 ºF to 95 ºF with 32:128 PA) | |
| Storage temperature range | –20 °C to 70 °C (–4 ºF to 158 ºF) Relative humidity 0 % to 95 % noncondensing. No air intake; splashproof design. | |
| MX Module Compatibility | OMNI-M-ECT4 | Supports conventional eddy current and bond testing C-scan (adaptors not included) |
| OMNI-M-ECA4-32 | Supports eddy current arrays, conventional eddy current, and bond testing C-scan (adaptors not included) | |
| ECT/BT and ECA modules | Connectors | BNC Absolute Probe (ECT), 4-channel Universal Fischer 19 pins (ECT and BT), and OmniScan connector for ECA probes |
| Number of channels | 1 to 4 (ECT); 32 (ECA), expandable up to 64 with external multiplexer; 1 (BT) with adaptor | |
| Probe compatibility | Absolute, differential, bridge, reflection (driver-pickup) for both ECT and ECA probes. Support select BondMaster pitch-catch probes through use of an adaptor (scanner also required). | |
| Probe recognition | Automatic probe recognition and setup for ECA and BT probes. | |
| Frequencies | 2 typical for most ECA and ECT setups or up to 8 on custom ECT applications or Bond Testing C-scan | |
| Operating frequency | 20 Hz to 6 MHz | |
| Maximum voltage | 12 Vp-p into 10 Ω | |
| Gain | ECT and ECA: 34 dB to 74 dB. BT: 28 dB to 68 dB. Additional adjustable software gain of 0 dB to 30 dB. | |
| Phase rotation | 0° to 360° with increments of 0.1° | |
| Acquisition (measurement) rate | 1 Hz to 15 kHz, variable depending on configurations. | |
| A/D resolution | 16 bits | |
| Filtering | FIR low-pass, FIR high-pass, FIR band-pass, FIR band-stop (adjustable cutoff frequency), median filter (variable from 2 points to 200 points), mean filter (variable from 2 points to 200 points) | |
| Channel processing | True automatic mixing, sensitivity normalization and encoder calibration | |
| Encoders | Time-based, one line scan or raster scan (2 axis) | |
| Alarms | 3 alarms, each configurable as Pie, Box, Ring/Circle. Alarm output as Visual, TTL and Sound. | |
| Analog outputs | Yes – one channel only. |
