Measurement Computing CIO-DI48 User Manual
Page 22
interference associated with line voltage (60 Hz) would be filtered out but a signal of
25 Hz would be allowed to pass.
In digital input circuits, low-pass filters are sometimes used to “de-bounce” inputs
from relay or switch contacts.
A simple low-pass filter may be constructed from one resistor (R) and one capacitor
(C). The cut-off frequency is determined by the formula:
Fc = 1
2 *
π
* R * C
R = 1
2*
π
* C * Fc
Where
π
= 3.14...
Fc = frequency in cycles per second
R = resistance in Ohms
C = capacitance in Farads
18
See also other documents in the category Measurement Computing Hardware:
- ACC-300 (7 pages)
- AI-EXP32 (20 pages)
- AI-EXP48 (19 pages)
- BTH-1208LS (30 pages)
- 6K-ERB08 (32 pages)
- BTH-1208LS Quick Start (4 pages)
- 6K-SSR-RACK08 (33 pages)
- BTH-1208LS-OEM (27 pages)
- CB-COM-Digital (68 pages)
- CB-7018 (68 pages)
- CB-7000 Utilities (44 pages)
- CB-7080D (74 pages)
- CB-COM-7033 (44 pages)
- CB-COM-7017 (72 pages)
- CB-COM-7024 (76 pages)
- CB-NAP-7000P (36 pages)
- CIO-DAC02/16 (16 pages)
- CIO-DAC02 (18 pages)
- CB-NAP-7000D (56 pages)
- CIO-DAC16-I (16 pages)
- CIO-DAC16/16 (20 pages)
- CIO-DAS08 (21 pages)
- CIO-DAC16 (20 pages)
- CIO-DAS08/JR (16 pages)
- CIO-DAS08/JR/16 (14 pages)
- CIO-DAS08/JR-AO (16 pages)
- CIO-DAS08-AOM (32 pages)
- CIO-DAS08-PGM (28 pages)
- CIO-DAS16/330 (34 pages)
- CIO-DAS48-I (17 pages)
- CIO-DAS16/M1 (38 pages)
- CIO-DAS48-PGA (18 pages)
- CIO-DAS800 (20 pages)
- CIO-DAS802/16 (22 pages)
- CIO-DAS6402/16 (40 pages)
- CIO-DAS-TEMP (20 pages)
- CIO-DDA06/16 (18 pages)
- CIO-DDA06/JR (17 pages)
- CIO-DIO24H (20 pages)
- CIO-DIO24/CTR3 (21 pages)
- CIO-DDA06 (21 pages)
- CIO-DIO48 (19 pages)
- CIO-DO192H (16 pages)
- CIO-DIO192 (20 pages)