uti interfacing

Other Hardware Sensors
1

i recentely bought uti 03,sensor...
plz..verify excitation has + and - peaks of square wave voltage..

2

?? post datsheet

3

Thank u for ur reply,

Uti 03,a,b,c,d ,can accept -Ve voltges?

DATA SHEET IS http://smartec-sensors.com/assets/files/pdf/sensors/SMTUTIN.PDF...

4

I read:
"Input voltage ref. to Vss -0.3 V to Vdd +0.3 V "

5

Thank u for ur reply,

In uti03,excitation signal generated by E and F,so i didn't used that one,
i externally connected excitation source to resistor bridge mode,but uti03 not responce properly?
plz..clarify how to use external excitation source to uti?

regards,

6

Thank u for ur reply

In UTI03,MODE11,

can use the external excitation voltage to measure resistances?

plz,clarify it will works only internal excitation volatge source?

regards

7

I guess its ment to use the internal excitation voltage, but I cant find mention that external power isn't possible.

use common GND? ..and input voltage should be within .4V - 4.4V (if 5V to chip Vcc)
Then if the bridge has almost evenly distributed resistance, the exitation voltage must be no more than ca. 8.5V
The chip then reads the differential voltage