RADIOMETER ABL90 FLEX - 5. Sensors and measuring technologies; Overview; General measuring principles; Calibration

5. Sensors and measuring technologies
Overview ...............................................................................................5-2
General construction........................................................................... 5-2
General measuring principles ............................................................... 5-3
Calibration.............................................................................................5-4
General information............................................................................ 5-5
The calibration equation ...................................................................... 5-6
Sensitivity......................................................................................... 5-7
Measurement..................................................................................... 5-8
Quality Management........................................................................... 5-9
Reference electrode.............................................................................5-13
Background information about the reference electrode............................5-14
Construction of the reference electrode.................................................5-15
pH and electrolyte sensors ..................................................................5-16
Construction of the pH and electrolyte sensors.......................................5-17
Measuring principle of the pH and electrolyte sensors .............................5-18
Calibration of the pH and electrolyte sensors .........................................5-20
Measurement – pH and electrolytes......................................................5-21
pCO
2
sensor.........................................................................................5-22
Construction of the pCO
2
sensor ..........................................................5-23
Measuring principle of the pCO
2
sensor.................................................5-24
Calibration of the pCO
2
sensor.............................................................5-26
Measurement – pCO
2
.........................................................................5-27
pO
2
sensor...........................................................................................5-28
Measuring principle of the pO
2
sensor...................................................5-29
Calibration of the pO
2
sensor...............................................................5-30
Measurement - pO
2
............................................................................5-31
Metabolite sensors...............................................................................5-32
Construction of the metabolite sensors .................................................5-33
Calibration of the metabolite sensors....................................................5-34
Measurement – metabolites ................................................................5-35
Measuring principle of the metabolite sensors........................................5-36
ctHb and derivates ..............................................................................5-38
General information...........................................................................5-39
Calibration of the optical system..........................................................5-44
Correcting for interferences.................................................................5-45
Measurement and corrections..............................................................5-47
References .......................................................................................5-50