Effects of Shielding and Guarding Electrodes on Electrostatic-Force Balance Measurements in a Coaxial Cylindrical Capacitor. - Kazuaki Fujita; Nobu-hisa Kaneko; Atsushi Domae; Yasutaka Amagai; Takayasu Fujino; Naoki Kuramoto (IEEE Trans. Instrum. Meas., 2025)