| 摘要 |
FIELD: test engineering; control systems for gas-transfer units. ^ SUBSTANCE: proposed device designed to generate unified electric signals for off-line testing of unified-signal controlled regulators including frequency changers has dc power supply connected to current or potential circuits incorporating variable resistors and disposed inside or outside the device, as well as output terminals for connection to piece of equipment under test. In addition, it has fixed resistors connected in series with variable resistors in both circuits which function to afford desired signal variation range; there is also signal magnitude measuring instrument switched with shunt in series with current circuit or with series resistor in parallel with output of potential circuit depending on circuit involved in operation. ^ EFFECT: enhanced reliability of gas-transfer unit control system. ^ 1 cl, 1 dwg
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