Biomedical Sensors - Introduction to Biomedical Engineering - page 663

TABLE 10.4 Sample Calibration Data for
a Pressure Sensor

Pressure (mmHg) Reading ( m V)

20 0

40 20

60 40

80 60

100 80

120 100

140 120

160 135

180 150

200 165

220 180

240 190

260 200

280 210

300 220

320 225

340 230

360 235

380 237

400 239

420 240

440 240

10. Cadmium and zinc electrodes are placed in an electrolyte solution. Calculate the current
that will flow through the electrodes if the equivalent resistance of the solution is equal to
14 k .

11. Explain what will happen when the Ag/AgCl gel of an ECG electrode used to monitor a
patient in the ICU dries out over time.
12. By how much would the inductance of an inductive displacement transducer coil change if
the number of coil turns is decreased by a factor of 6?

O

Continued