APPLICATION NOTE: EZ-TILT-3000-LIN/NULL
EZ-TILT 3000 are highly advanced and flexible angle conversion modules for single and dual axis tilt measurement applications. When using EZ-TILT 3000 with Single Axis tilt sensors, the sensor should be wired to any diagonal of pads in the center of the PCB, with common center electrode of the sensor wired to the pad #5 in the center of the PCB. In this case you will observe valid output on both #4 and #5 connector pins.
These miniature SMT modules are available in a WIDE RANGE or HIGH RESOLUTION versions. RATIOMETRIC by design, they can be powered by a
uni-polar or bipolar supply. Advanced CMOS design guarantees low current consumption, which makes these modules a logical choice for various battery powered applications. As with any other AOSI angle conversion module, you may install the sensor directly on the PCB or remotely.
With proper selection of supply voltage and GAIN settings these modules may be directly interfaced to standard A/D converters or computer I/O data acquisition boards.
| Specification | Data/Description/units |
|---|---|
| Max supply voltage ( VDD - VSS ) | 18 Vdc |
| Min supply voltage ( VDD - VSS ) | 4.6 Vdc |
| Current @ Vsupply (mA @ Vdc ) | VDD - 1Vdc |
| Output voltage min | VSS + 1Vdc |
| Response time 10% - 90% | 40msec |
| Noise band width 0Hz to 100Hz | <1mVdc |
| Min resistive load on X or Y outputs | 3Kohm |
| Min resistive load on Vtemp | 100Kohm |
| Min resistive load on Vref | 100Kohm |
| R18 | Offset adjustment for X |
| R29 | Offset adjustment for Y |
| R24 | Gain adjustment for X |
| R30 | Gain adjustment for Y |
The offset adjustment is 20% of the supply voltage, and is centered on Vref. For example : for 5Vdc supply, adjustment is +- 0.5Vdc centered on 2.5Vdc.
The gain is independent of the supply. Higher output signal could be achieved with higher supply voltage. For example : 0.3Vdc/arcdeg will require 8 Vdc supply for a tilt range of +/-10 arcdeg.
( I VDD I - I VSS I )volt=(scale factor volt/arcdeg * range arcgeg) + 2volt
Vrefvolt = ( I VDD I - I VSS I )/2 volt +/-0.2volt
| CONNECTOR pin # | designation |
|---|---|
| 1 | Vtemp ( temperature sensors output ) |
| 2 | Vref ( half of the I VDD I - I VSS I ) output 1 |
| 3 | VDD |
| 4 | X output |
| 5 | Y output |
| 6 | VSS |
NOTE: Vref can be forced to a voltage. The equivalent input for Vref is a 3.01K resistor in parallel with 22uF cap.
De-soldering R21, R28 and C13 will increase input resistance to 100K, and lower the equivalent C to 100pF. Vref should be free of electrical noise.
For industrial applications requiring 4-20ma current output, the EZ-TILT-3000 module can be upgraded with a special current output option. Please select the link below to view specifications for this upgrade: 4-20ma Industrial output upgrade option datasheet.
Specifications may change without notice.
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ADVANCED ORIENTATION SYSTEMS, Inc. 1901 E. LINDEN AVENUE, Unit 22 LINDEN, NJ 07036, USA. Phone: 908-474-9595 Fax: 908-474-9090 sales@aositilt.com http://www.aositilt.com |