Abstract
The real-time control over the observed parameters is known to be necessary during the experiments with biological objects. The use of approaches, such as real-time operating systems, often requires significant material or human resources (operating time, the special administration and programming skills and etc.). In this paper we propose an alternative approach for the implementation of real-time mode in the experiments on muscle preparations (papillary muscles, trabeculae, walls of vessels) based on an external input-output cards with built-in analog-to-digital/digital-to-analog converters and signal processor. As a result, we developed a hardware-software complex for studying the mechanical properties of biological materials (muscles) in real-time mode. This solution has a convenient and easy-to-use user interface, and requires a minimum of computing resources and minimal cost of electricity.
Highlights
The analysis devoted to the muscle response caused by length changes continues to be one of the most actual issues concerning the regulation of skeletal and heart muscles contractility, as well as their mechanical properties in the passive state [1]
Due to the fact that the researcher has a large number of control parameters there is a need for a digital-analog software and hardware complexes to carry out experiments in real-time mode [3] [4] [6]-[8]
We were encountered with a number of problems when updating obsolete equipment with more modern, as well as limited opportunities for us in the carrying out the experiment on the two muscle preparations simultaneously
Summary
The analysis devoted to the muscle response caused by length changes continues to be one of the most actual issues concerning the regulation of skeletal and heart muscles contractility, as well as their mechanical properties in the passive state [1]. Due to the fact that the researcher has a large number of control parameters (electrical, mechanical, thermal and etc.) there is a need for a digital-analog software and hardware complexes to carry out experiments in real-time mode [3] [4] [6]-[8] Such an approach has several advantages: “on-the-fly” processing data; the use of a variety of control algorithms; the ability to synchronize data transmission and external devices control; ease of data storage. On the basis of the above-stated reasons the method of carrying out a biomechanical experiments, which would allow recording all the necessary data at the lowest cost to the infrastructure of the experimental facility and power consumption, will be the most promising Such a solution should have the flexibility in terms of custom settings and variability in the choice of current tasks without a total change of experimental equipment. The proposed experimental complex was developed on the basis of the external input-output (I/O) cards with a signal processor, allowing carrying out biomechanical experiments on muscle preparations
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