Apparatus for measuring pressure distribution and method for measuring thereof
A pressure distribution and measurement device technology, applied in the field of sensor applications, can solve the problems of less than 10% accuracy and short sensor life
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[0023] See Figures 1-4. The array sensor in Figure 1 prints the sensitive material onto two insulating substrates (polyester film) in a matrix, among which, one piece is connected in rows, that is, connected in 20 rows at a side of 20cm; the other one is drawn out in columns Shaped connection, that is, connected into 40 columns, divided into two 20-line leads on the 20cm side. According to the analysis of the scanning driving principle, in order to be as close to the ideal state as possible, the on-resistance of the two-choice one-column switch must be as small as possible, and ADG719 is selected. The nominal maximum on-resistance of the chip: 4Ω@5V / 10Ω@3V, 200M-3Db bandwidth. ADG708 is selected as the multi-choice row switch, the nominal typical on-resistance: 3Ω@5V / 8Ω@3V, 55M-3Db bandwidth.
[0024] The flexible array sensor (1) is composed of two laminated polyester film substrates (1-1), each layer of polyester film substrate (1-1) is printed with a pressure sensor circu...
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