Product Overview
The Osprey DAQ-32-250-24Data acquisition system is based on a 32 channel 250 kHz, 24 bit resolution analog voltage digitizing device packaged in a 2U standard rack mount chassis. It is the IO front end for a full DAQ system that are synchronized and time stamped using a GPS receiver that synchronizes the all chassis through a fiber timing network. A full integration through the EPICS control system provides real time monitoring of all configuration and internal status to ensure reliable operation. Systems are operational that acquire data at configurable frequencies from 1 kHz to 250 kHz and transmit and store data up to 1,024 signals at 250,000 samples per second. The data collection supports Sentry Mode, with data collection starting and stopping on event or Monitor Mode, where start acquisition and stop acquisition is done on demand.
Key Features
- Up to 1,024 Signals at up to 250 kHz streaming to disk
- Quartz ADC Chassis has 32, 24-bit signals, -10 to 10V
- Quartz ADC Chassis has 4 DI and 4 DO Limit Checking
- Quartz ADC Chassis has 1 event receiver and 7 timing fanouts
- Quartz ADC Chassis has AC/DC coupling
- EPICS Driver – Time series data and FFT to clients at 20Hz
- EPICS Driver – Quartz state of health monitoring
- EPICS – Configuration, control and monitoring of DAQ
- DAQ Application – Acquired data viewer / Export to HDF5
- DAQ Application – Supports “Sentry Mode” data collection
The chassis houses an FMC based on the Marble FMC developed by Berkeley National Laboratory and an Osprey Quartz ADC board with 32 channels of 24-bit ADCs. Analog inputs are provided on the front panel using two DB37 connectors.
Designed for ease of maintenance and serviceability, the chassis is held together via 18 countersunk screws and also provides fiber and ethernet connections for chassis to chassis and server communication. With an on-board, user-programmable FPGA, the DAQ is designed to function as an front-end field instrument with on-board signal processing and application communications node in a third-party distributed data or control control system application (such as an EPICS).
Basic Architecture
Osprey Quartz ADC Board Overview
Marble Board Overview
The Osprey Quartz ADC board contains four Analog Devices AD7768 ADCs of which the rest of the board is built around. Inputs at the DB-37 connectors are scaled and pass through filtering and a per-channel selectable DC blocking stage before being sent to an ADC. The ADC then streams its data via LVDS through the FMC connectors to the Marble Board.
The Marble board is built around a Kintex 160T 7 Series FPGA. This is one of the highest performing FPGAs available from AMD while allowing use of the license-free tool chain. The Marble board is responsible for monitoring, packaging, and reporting all streamed data from the ADCs.
Front Panel
The front panel is a 3.48 x 19 x 0.128 rack mountable panel equipped with 2 LC fiber connectors, an LED power light and 2 handles. There are 2 cutouts that expose the 2 DB-37 connectors attached to the Quartz ADC 250kHz board. The front panel attaches to the chassis via 6 countersunk screws.
Back Panel
The back panel is 16.8x3x0.128 equipped with a DC power connector, a power switch, a 5A fuse, an Ethernet port, and a fan that is pulling the air from inside the chassis. Note: there is a fan on the side of the chassis that is blowing air directly across the heatsink on the FPGA board. The back panel attahes to the chassis via 4 countersunk screws .
- Full Stack Data Acquisition – from signal to data export
- Configuration Through EPICS
- DAQ Control
- Monitoring During Data Collection Through EPICS
- 250 kHz Fast Detection and Mitigation for 1024 signals
- Data Acquisition at 250 kHz, 24 bit, continuous
- Data Viewing and Exporter