Crank Angle Detector - Frequently Asked Questions
Question number FAQ-0003
We are using the PP-010A slit disc in our crank angle detection system, but vibrations can cause surface runout and distortion. What are some countermeasures?
The PP-010A slotted disc is made of a 0.5 mm thick metal plate, so excessive vibrations transmitted from the rotating device may cause runout or distortion. In such cases, reinforce the PP-010A slotted disc by sandwiching it between disc-shaped plates as shown in the diagram below to prevent runout and distortion.
- We also manufacture reinforcing plates to address runout and distortion in the PP-010A slotted disc. Since the reinforcing plates for the PP-010A are made to order, please contact your nearest sales office for details regarding price, delivery time, etc. We also sell the PP-011B slotted disc, which comes standard with a reinforcing plate; please consider using this as well. The specifications for the PP-010A and PP-011B slotted discs are shown in the table below.
| PP-010A | PP-011B | |
|---|---|---|
| diameter | φ200mm | φ200mm |
| thickness | 0.5mm | 0.3mm |
| Material | stainless | stainless |
| Operating rotational speed range | 0～6000r/min | 0～6000r/min |
| Number of pulses | 360P/R & 1P/R | 720P/R & 1P/R |
| Weight | Approximately 110g | Approximately 70g |
| Outline Drawings | pp010a_01a.pdf | pp011b_11a.pdf |
Last updated: 2008-12-15