VMICPCI-7806
Product Name
GE Fanuc VMIC Series 6-Channel High-Precision Analog Input PCI Module (for Rugged Data Acquisition) (Model: VMICPCI-7806)
(Model Naming Interpretation:
- VMICPCI: Core prefix for GE Fanuc’s “VMIC PCI” product line, denoting compatibility with rugged industrial PCI-based computing systems (e.g., VMIC 7700 series single-board computers) and alignment with the brand’s standards for harsh-environment operation.
- 7806: Hardware configuration code; “78” specifies a high-precision analog input module optimized for test and measurement, “06” indicates 6 independent analog input channels—balancing channel density with signal integrity for multi-sensor data acquisition.
- Core Positioning: The “rugged analog data acquisition hub for industrial PCI systems,” enabling accurate capture of low-level sensor signals in extreme environments—critical for applications where measurement precision (e.g., ±0.01% FS) and environmental durability directly impact test validity or process control. )
2. Product Description
The VMICPCI-7806 is a dedicated 6-channel analog input PCI module developed by GE Fanuc for rugged industrial computing systems, widely deployed in aerospace component testing (turbine stress measurement), automotive durability testing (suspension load monitoring), and offshore oil drilling (downhole pressure sensing). It integrates high-precision signal acquisition, rugged mechanical design, anti-EMI protection, and flexible input configuration to address three key challenges of analog data acquisition in harsh environments:
- Ultra-Precise Analog Signal Capture: Equipped with 16-bit successive-approximation ADCs (Analog-to-Digital Converters) and low-noise signal conditioning circuits, the module achieves a measurement accuracy of ±0.01% full-scale (FS) and a signal-to-noise ratio (SNR) of 90 dB. This enables reliable capture of low-level sensor signals—for example, a strain gauge output (0–10 mV) from an aerospace turbine blade can be measured with a resolution of 0.1 µV, detecting subtle stress changes (±1 MPa) that indicate potential component fatigue. The module supports multiple input types (differential, single-ended, current, voltage), making it compatible with diverse sensors (e.g., 4–20 mA pressure transducers, 0–5 V temperature RTDs).
- Rugged Design for Extreme Environments: Built to withstand the mechanical and environmental stress of industrial and field applications, the module features a reinforced PCI bracket (aluminum alloy) for shock resistance, conformal coating on circuit boards (to prevent moisture/dust ingress), and an operating temperature range of -40℃ to +85℃. It meets MIL-STD-810H standards for vibration (10–2000 Hz, 15 g peak) and shock (50 g peak, 11 ms half-sine wave)—ensuring stable operation in environments like automotive test chambers (temperature cycling from -40℃ to +80℃) or offshore drilling rigs (continuous vibration from machinery).
- Anti-EMI Protection for Signal Integrity: Industrial and test environments often have high electromagnetic interference (EMI) from nearby motors, VFDs, or radio transmitters— which can corrupt analog signals. The VMICPCI-7806 addresses this with 2500 V DC galvanic isolation between input channels and the PCI bus, 6-pole low-pass filters (30 Hz cutoff) for each channel, and compliance with EN 55022 Class A EMI standards. This eliminates signal noise (e.g., 50 Hz power line interference) and ensures measurement stability—for example, in an automotive factory, the module can capture suspension load data (via strain gauges) without corruption from nearby welding robots (EMI sources up to 100 V/m).
Key advantages also include compatibility with GE Fanuc’s VMIC Real-Time Operating System (RTOS) and Windows-based industrial software (e.g., LabVIEW), programmable sampling rates (100 S/s to 100 kS/s per channel), and on-board FIFO (First-In-First-Out) memory (16 k samples) to prevent data loss during high-speed acquisition. It also supports remote calibration via software—eliminating the need for on-site adjustment and reducing maintenance downtime in hard-to-access locations (e.g., aerospace test cells).
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