Support User Manuals

RayTek MI Miniature Infrared Sensor Thermometer User Manual

Open as PDF

of 95

Operation

42 MI

6.4.4AdvancedPeakHold

Thisfunctionsearchesthesensorsignalforalocalmaximum(peak)

andwritesthisvaluetotheoutputuntilanew localmaximumis

found.Beforethealgorithmrestartssearchingforalocalmaximum,

theobjecttemperaturehastodropbelowapredefinedthreshold.If

theobject

temperatureraisesabovetheheldvaluewhichhasbeen

written to the output so far, the output signal follows the object

temperatureagain.Ifthealgorithmdetectsalocalmaximumwhile

theobjecttemperatureiscurrentlybelowthepredefinedthreshold

theoutputsignaljumpstothenewmaximum temperatureof

this

localmaximum.Oncetheactualtemperaturehaspassedamaximum

above a certain magnitude, a new local maximum is found. This

magnitudeiscalledhysteresis.



Figure28:AdvancedPeakHold

Theadvancedpeakholdfunctionisonlyadjustablebymeansofthe

DataTempMultiDropSoftware.

output temperature

object temperature

hysteresis

threshold

Temp

Time

previous next