DAQ - DATA ACQUISITION VIRTUAL INSTRUMENTATION

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SENSOR - PROBE

Converts any BIO, CHM. or PHY quantity into electrical voltage (SIGNAL)

BIO Sensor - Hart-rate (Sensor) into el. signal - voltage

CHM Sensor - pH (Sensor) into el. signal-voltage

PHY Speed - Speed (Sensor) into el. signal- voltage


SIGNAL CONDITIONER


Output signal of the sensor is usually very small signal - consequently:

Very difficult to measure - record

Interference is very high - noise

Signal need to be amplified


Low -level signals are amplified to increase resolution - higher accuracy

Linearization of thermocouple voltage - Same correction factor

Filtering unwanted signals (hardware or software filter


A/D CONVERTER

What is ANALOG (CONTINUES) Signal?

What is DIGITAL (DISCONTINUES) Signal?


File on the PC

DAQ software allows to:

select sampling rate,

graph in real time,

perform statistics,

generate reports