为了防止远洋运输的货物结露霉损及危险品高温分解发生事故,远洋船舶货舱必须具备温度、湿度检测手段。本文介绍了船用多点数字式温湿度仪的电路特征及技术性能,并通过上海至意大利航线实船测试,探索了货舱通风降温、降湿规律,以减少货损事故的发生。 In order to prevent mildew of the goods in the ocean from being transported and the pyrolysis of the dangerous goods, an ocean-going ship holds must have temperature and humidity detection means. This paper introduces the circuit features and technical performance of multi-point digital temperature and humidity instrument for ships. Through the real-ship test of Shanghai-Italy route, it explores the rules of ventilation and cooling of cargo hold to reduce the occurrence of cargo damage accident.