| 摘要 |
<p>The invention concerns a power supply device for electronic cryogenic level indicators, characterised in that it comprises a 'cold surface' heat exchanger (10) traversed by the tube filling (3) a tank with liquid gas, a heat exchanger maintaining the thermoelectric module (2) 'hot surface' at room temperature and a boost converter (9). The invention is applicable in industry for making gas liquid tanks provided with an electronic level indicator.</p> |
