MEDA 43 HA
Designed by VÚMS.It was manufactured from 1978 by Aritma. The computer was inspired by or was successor to MEDA 42 T.
The hybrid analog computer replaces the previous types of 41 TC, Meda 42 Ta, merging the benefits of their concept and the advantages of the most modern electronic circuits. It not only brings compatibility with all computers of the Meda-T series, but mainly some brand new conceptual elements used only on larger computers. This is mainly:
- Replacement Programming Plates
- illustrative programming by connecting units of units without external impedance
- Clear and simple button control
- Hybrid calculation controller as a basis of programmable control of the system
- Choice of different time. Constant Integr.
- Address System
Hybrid analog computer Meda 43 ha can work separately, as part of a computing system, with computers of the same type and other meda-T series. When used, a joint. The device can create a hybrid computing system of a smaller range. Thanks to the versatility and modular concept, the 43 ha medal can be used for classic single -purpose and more complicated repetitions, to solve many types of tasks in iteration; In industry, science, technology, agriculture, etc., where it is required in particular:
- Solution of linear and non -linear equations
- Solution of partial equations
- Solution of algebraic and transcendental equations
- Generating the functions of time and general arguments
- Solution of optimization and marginal tasks
- Identification of systems and regulators
- Investigation of frequency characteristics
- Simulation of smaller processes and systems, etc.
The possibilities of use are given by the desired range, speed and accuracy of the calculation.
| Parameter | Value |
| Dimensions (w × h × h) | 600 × 885 × 607 mm |
| Weight 115 kg | |
| Power 220 V ± 10 % / −15 % | |
| Power input 300 VA | |
| Frequency 50 Hz ± 3 % | |
| Counting voltage ± 10 V | |
| Accuracy of linear operations 2 ‰ (2 per mille) | |
| Accuracy of non -linear operations 5 ‰ (5 per mille) | |
| Transmission zone 100 kHz / 3 dB | |
| Operating temperature +21 to +25 ° C | |
| Relative humidity 45–65 % |
The 43 ha medal contains a maximum of 20 modular units in eight types. In the basic assembly (recommended) we can realize with them:
| Unit Number | |
| Integrators 12 | |
| Sumators 4 | |
| Comparators 4 | |
| Anal. memory 4 | |
| Us./Works. units | 3 |
| Functional converters 4 | |
| Diode circuits. Nelinearit | 4 |
| Number of potentiometers 39 |
After removing some units, according to the type of task, the computer can be completed with some of the ten units supplied in the accessories.
References
- Technická práca: časopis Ústřední rady Čs. vědecko-technické společnosti. Bratislava: SOR, národohospodárska komisia, 1977, 29(8), p. [90]. Dostupné tiež z: https://dikda.snk.sk/uuid/uuid:69e89a82-786e-4c60-80f7-856daa1a8bb8
- https://ajovomultja.hu/meda-43-ha-hibrid-analog-szamitogep (WebArchive)
- https://wystawy.biblioteka.pollub.pl/items/show/2226 (WebArchive)
- https://www.analogmuseum.org/english/collection/meda/43/ (WebArchive)