Fig. 2From: Freezing resistance evaluation of rose stems during frost dehardening using electrical impedance tomographya Reconstructed images with different test devices and b reconstructed images with different excitation currentsThe radius of the test device was 2 cm (A1), 4 cm (A2) or 8 cm (A3). The excitation current was 100 μA (B1), 150 μA (B2), 200 μA (B3), 250 μA (B4), 300 μA (B5) or 500 μA (B6). The diameter of the rose stem was 5.68 mm, and the excitation current frequency was 1 kHz. The excitation current was 250 μA for a, and the radius of the test device was 8 cm for b. The blue area on the lower part of each image represented the stem of the rose, the green area represented the background salt solution, and the other colours indicated that serious noise occurred.Back to article page