馆藏环境温湿度稳定性的频域图谱分析方法研究——以重庆博物馆为例

预防性保护对馆藏环境温湿度提出了适宜稳定的要求,本研究是对温湿度稳定性全新评估方法的研究。将馆藏环境温湿度监测时序数据(时域图谱)使用快速傅里叶变换(FFT)转换成频域图谱,并通过对频域图谱的解读,分析温湿度稳定性。本研究详细分析了温湿度频域图谱的优缺点,并通过频域图谱评估了展厅、展柜温湿度变化的特点、稳定性以及调控效果。研究结果为馆藏环境温湿度稳定性评估提供了一种全新的有效方法。

Frequency domain analysis method for temperature and relative humidity stability of museum environment: a case study of Chongqing Museum

Preventive conservation requires suitable and stable temperatures and relative humidity (T & R.H.) in a museum environment. This paper is about research on a new evaluation method for T & R.H. stability. Museum environment monitoring data of temperatures and relative humidity were converted into spectrum maps using fast Fourier transform, and the T & R.H. stability was analyzed by the interpretation of the spectrum maps. The merits and demerits of spectrum maps of T & R.H. were analyzed in detail, and the fluctuation characteristics and the stability of T & R.H. in exhibition halls and showcases as well as the control effect were evaluated by the interpreted spectrum maps. This paper provides a new and effective method for evaluating the T & R.H. stability of a museum environment.