Fire accidents due to oil-immersed transformers seriously threaten the safe operation of power systems. In this paper, similarity principle was used design a high-pressure water mist fire-extinguishing test platform for small-scale transformer fire, and method achieved good fire extinguishing effect. The results indicate that deflagration phenomenon, lasting about 2–4 s, could be observed after...

This paper presents a low-cost digital temperature sensor for radio frequency identification (RFID). The proposed utilizes the leakage channel current ratio of different transistors with exponential dependence, which results in ultra-low-power consumption and compact size. Thanks to dual-differential scheme, it can operate without any extra assistance from voltage regulator or accurate clock ge...

Abstract Hydro-pneumatic suspension is the important part of running system vehicle, with wider working frequency band, frequent reciprocating motion and heavy impact load, whose indicator sealing performance. The heat generation law hydro-pneumatic obtained under sinusoidal excitation by calculating method, bench test temperature suppression successfully achieved.