| ??? 12/15/05 20:19 Read: times |
#105303 - LVDT and Strain Gauge devices Responding to: ???'s previous message |
In our applications (balancing) we have used LVDT's and strain gauge based load cells for both static and dynamic measurements.
Technically an LVDT in a proving ring or force ring IS a load cell. Both of these techniques are most definately temperature sensitive. High quality strain gauges have temperature compensation built-in for the material they are bonded to (aluminum or steel most common) drift is still always a problem. Weight scales usually have auto-zeroing schemes built in. There is another technique I have heard about but have never seen availible: Measurement of the change in quartz crystal resonance due to strain applied to the directly to the crytal itself. Big advantage would be all digital, no analog electronics involved !!. |
| Topic | Author | Date |
| electromagnetic force transducer | 01/01/70 00:00 | |
| electromagnetic force transducer? | 01/01/70 00:00 | |
| Agree | 01/01/70 00:00 | |
| load cells | 01/01/70 00:00 | |
| Time constant | 01/01/70 00:00 | |
| sensor | 01/01/70 00:00 | |
| Strain gauges ? | 01/01/70 00:00 | |
| LVDT? | 01/01/70 00:00 | |
| LVDT | 01/01/70 00:00 | |
| Strain gauge | 01/01/70 00:00 | |
| Hmm | 01/01/70 00:00 | |
| LVDT and Strain Gauge devices | 01/01/70 00:00 | |
| Eh? | 01/01/70 00:00 | |
| Singing wire | 01/01/70 00:00 | |
| LVDT | 01/01/70 00:00 | |
| LVDT | 01/01/70 00:00 | |
Mine too | 01/01/70 00:00 |