Synchronous and transient measured data acquisition
Transient measured data acquisition is a process in which time-dependent measured values are recorded. This may be necessary, for example, when investigating rapid physical or chemical processes. In transient data acquisition, it is important that the measuring devices have a high sampling rate in order to accurately record the rapid changes. In addition, the measuring devices must have sufficient resolution and sensitivity to be able to detect subtle differences in the measured values. Precise synchronization of the measuring devices and accurate time stamping of the data are also crucial in order to be able to correctly analyse the development of the process over time.
Whether in electrical networks or on systems, effects that cause faults usually only occur very sporadically. A single peak triggers an alarm. The task is to record this peak and analyze it together with its pre- and post-history. A long-term and complete recording is required. For this application, Delphin offers the Expert Transient device. 8 or 16 analog tracks are recorded in parallel and time-synchronously with a sampling rate of up to 50 kHz per channel. The transient data is stored on an internal or external memory (NAS). The Expert Transient appliances are very compact and space-saving. Behind the technology of Expert Transient There is no PC hidden in the PROFIBUS - the recording of the transient measurement data is correspondingly stable and reliable. In addition to the analog signals, it is also possible to "listen" to the PROFIBUS and record measurement data synchronously.
Application highlights of transient data acquisition
- Transient data acquisition at sampling rates of up to 50 kHz
- Synchronous measurement of analog signals
- Sniffing function available for PROFIBUS measurement data
- System extendible by up to 64 analog inputs
Practical example of transient measured data acquisition
Synchronous and transient acquisition of structure-borne noise
A military application examines ground sound-wave dispersal. Geophones are used at up to 48 sites to record high frequency data. The geophones provide an IEPE-compatible output signal which can be directly connected to an Expert Transient device. Three Expert Transient devices, each with 16 inputs, are being used for this purpose. Synchronous sampling is performed on the 16 analog inputs. The devices are linked to each other via a network. Synchronisation between the devices takes place using a PTP protocol. Absolute time synchronisation is performed via GPS.
Typical areas of application
of the transient data acquisition
- High-speed data logger
- Pressure impulse measurement
- Peak detection in electrical networks
- Independent long-term recording
- Sound dispersal measurement
- Fault searching
- PROFIBUS data logging
Hardware and software for your measurement and testing solution
Flexible, scalable and expandable solution for seamless data acquisition and monitoring
The Loggito device is a compact data logger system designed for the acquisition and recording of measurement data. It has a variety of analog and digital inputs to connect different sensors and signals. The device records the data with high accuracy and stores it on an internal memory or external storage media such as SD cards.
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Data acquisition and analysis
With ProfiSignal Go you can display online data from the Message and Expert hardware in diagram form. Numerous analysis functions, such as zoom, cursor, movable axes, flags, ASCII export and calculation channels, enable fast display of measured values and post-processing.
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Precisely record, autonomously store, automatically transmit and evaluate measured values.
The FPGA-based Expert Logger device is particularly powerful and enables the processing of up to 46 analogue input channels, both at low and high sampling rates. Measured values can be precisely recorded, autonomously stored and automatically transferred to the internet or PC via USB, LAN or WLAN and evaluated.
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Operating and monitoring
ProfiSignal Basic combines the functions of ProfiSignal Go with operating and monitoring elements of process visualisations, e.g. digital and analogue displays, switches, buttons and signal lamps. With Basic, you can create everything from simple visualisation diagrams to complex visualisation systems.
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Modular measuring, monitoring and automation in one device.
The ProfiMessage D device is a state-of-the-art data logger system that has been specially developed for industrial data acquisition and analysis. It offers a wide range of functions such as the recording and storage of measurement data, monitoring of process parameters and alarms in the event of deviations.
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Automate and control
ProfiSignal Klicks supplements ProfiSignal Basic with functions for process automation. Structural diagrams for mapping the process as well as a script language (completely operable with the mouse) enable even the non-informatician to create complex test stand and automation applications with automatic report generation.
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State-of-the-art processor technology and extreme precision for vibration measurement.
The Expert Vibro device is a powerful vibration analysis device that has been specially developed for monitoring and analyzing machine and system conditions. It enables vibration data to be recorded and evaluated in order to detect potential problems or signs of wear at an early stage.
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Fast project planning and analysis of measurement data
With ProfiSignal 20 Go you can visualise your measurement data in just a few steps, both online and offline, in various diagram types, monitor, analyse, archive as a measurement file or export directly in the appropriate file format.
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Intelligent data recorder for synchronous recording of transient and periodic events.
The Expert Transient device enables the recording and evaluation of transient signals over a certain period of time and provides important information for the optimization of processes and systems. The device is characterized by its high accuracy, fast sampling rate and simple operation.
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Visualisation and operation
With ProfiSignal 20 Basic you can create individual diagrams using a wide range of operating and monitoring elements. Both continuous processes (e.g. production data acquisition) and discontinuous measurement tasks (e.g. test measurements) can be visualised, operated and monitored without any programming effort. You can create the operating and monitoring diagrams by assembling and configuring the prefabricated elements.
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Modular system for use as a measuring, control and monitoring device.
The ProfiMessage devices are a modular, expandable and easy-to-use system for measurement data acquisition, monitoring and automation of machines, systems or test benches. ProfiMessage can be used wherever measured values need to be recorded quickly, precisely and electrically isolated, as well as intelligently pre-processed or monitored.
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Central measurement data management
The Delphin Data Center is the solution used for the worldwide measurement networking and control of plants, machines and test stands.
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PC-supported data acquisition and test stand
The Expert Key device is a measuring and control device that can be used in various applications. It enables the acquisition and evaluation of measurement data as well as the control of processes. The device has various interfaces and can be connected to a wide range of sensors and actuators. It is often used in automation technology, mechanical engineering and research.
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Compact and flexible measurement data laboratory with precision measurement technology.
The LoggitoLab device is ideal for use in laboratory environments, research projects, quality control and other applications where precise data acquisition and analysis is required. It offers a reliable and user-friendly solution for monitoring and recording measurement data.
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Test stand for measurements with potential using an internal data memory.
The LogMessage device is a powerful data logger system designed for the reliable acquisition and recording of measurement data. It offers a variety of analog and digital inputs to connect different sensors and signals. The device records the data with high accuracy and saves it to an internal memory or external storage media.
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