| 摘要 |
<p>The invention relates to a sensor comprising at least 3 sensor units arranged in one or more rows of sensor units. Each sensor unit comprises a piezoresistor and wires for applying a voltage over the piezoresistor. The sensor units of the row is connected to each other via a sensor unit row connection wire whereto the first supply wire is connected. The second supply wire is connected to one or more basis resistors. One or more of the sensor units comprise an output wire for measuring an output signal. The output wire is connected to the sensor unit via the sensor-resistor wire connecting the sensor unit and the one or more basis resistors. By the present invention it is possible to configure the sensor unit array such that it is possible to multiplex the signal and thereby get in contact with each single array element by only having one electrical wire per row and column, where column indicates the number of sensors per row. By multiplexing the supply voltage on the rows and ground potential on the columns, it is possible to obtain signals from all the sensor units, either one by one or in rows of sensor units simultaneously.</p> |
