scholarly journals A Teensy microcontroller-based interface for optical imaging camera control during behavioral experiments

2018 ◽  
Author(s):  
Michael Romano ◽  
Mark Bucklin ◽  
Dev Mehrotra ◽  
Robb Kessel ◽  
Howard Gritton ◽  
...  
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Low Cost ◽  
Image Acquisition ◽  
Trace Conditioning ◽  
Digital Data ◽  
Behavioral Experiments ◽  
Temporal Precision ◽  
Camera Control ◽  
Behavioral Paradigm

AbstractBackgroundSystems neuroscience experiments often require the integration of precisely timed data acquisition and behavioral monitoring. While specialized commercial systems have been designed to meet various needs of data acquisition and device control, they often fail to offer flexibility to interface with new instruments and variable behavioral experimental designs.New methodWe developed a Teensy 3.2 microcontroller-based interface that offers high-speed, precisely timed behavioral data acquisition and digital and analog outputs for controlling sCMOS cameras and other devices.ResultsWe demonstrate the flexibility and the temporal precision of the Teensy interface in two experimental settings. We first used the Teensy interface for reliable recordings of an animal’s directional movement on a spherical treadmill, while delivering repeated digital pulses that can be used to control image acquisition from a sCMOS camera. In another example, we used the Teensy interface to control temporally precise delivery of an auditory stimulus and a gentle eye puff in a trace conditioning eye blink behavioral paradigm, while delivering repeated digital pulses to initiate camera image acquisition.Comparison with existing methodsThis interface allows high-speed and temporally precise digital data acquisition and device control during diverse behavioral experiments.ConclusionThe Teensy interface, consisting of a Teensy 3.2 and custom software functions, provides a temporally precise, low-cost, and flexible platform to integrate sCMOS camera control into behavioral experiments.

scholarly journals The Acquisition Rate and Soundness of a Low-Cost Data Acquisition System (LC-DAQ) for High Frequency Applications

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 524 ◽  
Author(s):  
Ciro Moreno ◽  
Alejandro González ◽  
José Luis Olazagoitia ◽  
Jordi Vinolas
Keyword(s):  
Data Acquisition ◽  
High Frequency ◽  
High Speed ◽  
Low Cost ◽  
Data Retrieval ◽  
Cost Data ◽  
High Rate ◽  
Acquisition Rate ◽  
Open Platform ◽  
Speed Up

This article presents a novel and reliable low-cost data acquisition solution for high frequency and real-time applications in vehicular dynamics. Data acquisition systems for highly dynamic systems based on low-cost platforms face different challenges such as a constrained data retrieval rate. Basic data reading functions in these platforms are inefficient and, when used, they limit electronics acquisition rate capabilities. This paper explains a new low-cost, modular and open platform to read different types of sensors at high speed rates. Conventional reading functions are avoided to speed up acquisition rate, but this negatively affects data reliability of the system. To solve this and exploit higher data managing rates, a number of custom secure layers are implemented to secure a reliable acquisition. This paper describes the new low-cost electronics developed for high rate acquisition applications and inspects its performance and robustness against the introduction of an increasing number of sensors connected to the board. In most cases, acquisition rates of the system are duplicated using this new solution.

PC104 Interface Recommended for High Speed Data Acquisition Systems

2013 ◽  
Vol 332 ◽  
pp. 119-123
Author(s):  
Dorina Purcaru ◽  
Anca Purcaru
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Low Cost ◽  
Sampling Rate ◽  
Signal Acquisition ◽  
Synchronized Sampling ◽  
Data Acquisition Systems ◽  
High Speed Data Acquisition ◽  
High Speed Data ◽  
Energetic Systems

The interface presented in this paper performs a synchronized sampling of all eight common-mode or differential analog inputs with a high sampling rate. This is a low cost interface, entirely controlled by the PC104 CPU. The paper is focused on design and operation aspects of the synchronized analog-to-digital conversion module. This interface is recommended for high speed data acquisition systems and finds its utility in energetic systems, for monitoring the power quality and for recording different specific transient events. Some programmable electronic modules which perform analog and digital signal acquisition in energetic systems already contain a PC104 interface with synchronized sampling of analog inputs; some experimental results are also presented in this paper.

PC104 Interface Recommended for High Speed Data Acquisition Systems

2013 ◽  
Vol 325-326 ◽  
pp. 926-929 ◽  
Author(s):  
Dorina Purcaru ◽  
Cornelia Gordan ◽  
Romulus Reiz ◽  
Anca Purcaru
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Low Cost ◽  
Sampling Rate ◽  
Digital Signal ◽  
Signal Acquisition ◽  
Synchronized Sampling ◽  
Data Acquisition Systems ◽  
High Speed Data Acquisition ◽  
High Speed Data

The interface presented in this paper is recommended for high speed data acquisition systems; it performs a synchronized sampling of all common-mode or differential analog inputs with a high sampling rate. This is a low cost interface, entirely controlled by the PC104 CPU. Programmable electronic modules that contain such PC104 interfaces can be found running in the energetic system from Romania; these dedicated equipments perform the analog and digital signal acquisition for monitoring and recording different specific transient events. Some experimental results obtained using the disturbance monitoring device PC-08/104 are also presented in this paper.

scholarly journals IMPLEMENTATION OF A REDUCED COMPLEXITY HIGH PERFORMANCE DATA ACQUISITION CHIP USING 0.18 MICRON TECHNOLOGY

2021 ◽  
Vol 7 (3) ◽  
pp. 22-26
Author(s):  
Hai P. Le ◽  
◽  
Aladin Azyegh ◽  
Jugdutt Singh ◽  
◽  
...  
Keyword(s):  
Low Power ◽  
Data Acquisition ◽  
High Speed ◽  
High Performance ◽  
Modern Science ◽  
Digital Data ◽  
Clock Frequency ◽  
Flash Adc ◽  
Analog Signals ◽  
Wide Range

Data acquisition (DAQ) in the general sense is the process of collecting information from the real world. For engineers and scientists, this data is mostly numerical and is usually collected, stored and analysed using computers. However, most of the input signals cannot be read directly by digital computers. Because they are generally analog signals distinguished by continuous values, while computers can only recognise digital signals containing only the on/off levels. DAQ systems are therefore inevitably necessary, as they include the translation requirements from analog signals to digital data. For this reason, they have become significant in wide range of applications in modern science and technology [1]. The paper precents the disign of a 12-bit high-speed low-power Data Acquisition (DAQ) Chip. In this paper, the disigns of the building block components are aimed at high-accuracy along with high-speed and low power dissipation. A modifided flash Analog-to-Digital converter (ADC) was used instead of the traditional flash proposed DAQ chip operates at 1 GHz master clock frequency and achieves a sampling speed of 125 MS/s. It dissipates only 64.9 mW of power as compared to 97.2 mW when traditional flash ADC was used.

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