TY - JOUR IS - 4 JO - Sensors PY - 2018 SN - 1424-8220 VL - 18 AU - Xiao D AU - Ma Q AU - Xie Y AU - Zheng Q AU - Zhang Z DO - 10.3390/s18041053 LA - en N1 - FEMU ID: 34886; EMF-Portal URL: https://www.emf-portal.org/en/article/34886 SP - 1053 TI - A Power-Frequency Electric Field Sensor for Portable Measurement UR - http://www.mdpi.com/1424-8220/18/4/1053/pdf ER -