| ??? 03/13/09 17:29 Read: times |
#163433 - Can you linearize? Responding to: ???'s previous message |
Since most sensors are non-linear at some point you may want to consider linearization.
On the assumption that you don't have a processor to do the linearization, you could use external circuitry to implement it. The following 3 articles show the circuitry and the calculations for a 2nd order polynomial using Excel to find the coefficients and then the resistor values. http://electronicdesign.com/Articles/...leID=11502 http://www.edn.com/article/CA6526816.html http://www.edn.com/article/CA6594092.html Basically once you have the circuitry based on the order of the polynomial, you enter the input voltage as one of the columns in Excel and the desired linearized output as another and then get Excel to do the curve fitting for you. -Aubrey |
| Topic | Author | Date |
| automotive temp. sensor | 01/01/70 00:00 | |
| General problem with semiconductors. | 01/01/70 00:00 | |
| WRONG! | 01/01/70 00:00 | |
| Have a look at figure 5, too. | 01/01/70 00:00 | |
| Can you linearize? | 01/01/70 00:00 | |
| And there is always the table | 01/01/70 00:00 | |
| If you need AECQ-100 Grade 0 then its here | 01/01/70 00:00 | |
| Temp Range May Kill It But... | 01/01/70 00:00 | |
| Reply | 01/01/70 00:00 | |
any diode (or transistor) will do | 01/01/70 00:00 |