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A data logger (also datalogger or data recorder) is an electronic device that records data over time or about location either with a built-in instrument or sensor or via external instruments and sensors. Increasingly, but not entirely, they are based on a digital processor (or computer), and called digital data loggers (DDL).
SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous serial communications protocol for intelligent sensors that monitor environment data. These instruments are typically low-power (12 volts), are used at remote locations, and usually communicate with a data logger or other data acquisition device.
Data acquisition is the process of sampling signals that measure real-world physical conditions and converting the resulting samples into digital numeric values that can be manipulated by a computer. Data acquisition systems, abbreviated by the acronyms DAS, DAQ, or DAU, typically convert analog waveforms into digital values for processing.
The vertical input is digitized by an analog-to-digital converter to create a data set that is stored in the memory of a microprocessor. The data set is processed and then sent to the display, which in early DSOs was a cathode ray tube, but today is an LCD flat panel. DSOs with color LCD displays are common.
A remote terminal unit (RTU) is a microprocessor-controlled electronic device that interfaces objects in the physical world to a distributed control system or SCADA (supervisory control and data acquisition) system by transmitting telemetry data to a master system, and by using messages from the master supervisory system to control connected objects. [1]
Analog Devices Simplifies High-Speed Data Converter-to-FPGA Interconnect Design Environment New AD9250 dual-channel, 14-bit, 250-MSPS, A/D converter with JESD204B-compatible output connects ...
The Butterfly Logger is an open source data logger based on the AVR Butterfly. [ 8 ] The Butteruino project is a set of libraries to integrate the AVR Butterfly with the Arduino development environment.
The basic VELA carries a single 4KB EPROM (ISL1 or ISL1*) which contains the basic input and output routines that handle the keyboard input and 8-digit LED display output together with seventeen user selectable programs which range from a 4-channel digital volt meter to a random event monitor which could be used with a Geiger Counter Probe to ...
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