| Pradono Antyanto 07/12/05 05:01 Read: 864 times Salatiga Indonesia |
#97136 - The noise again Responding to: Stanley Lio's previous message |
Hi All,
I have tried the Kai's bandpass filter and i've combined it with LM318. But, Why does the noise still exist? I used a comparator and here is the circuit : http://www.8052.com/users/anto8052 I hope all of you are willing to respond the circuit. Thank You, Pradono |
| Topic | Author | Date |
Ultrasonic Signal Processing  | Stanley Lio | 06/10/05 08:11 |
| Time dependant gain | Jez Smith | 06/10/05 08:29 |
| Further attenuation... | Andy Neil | 06/13/05 15:39 |
| Signal recovery. | Steve M. Taylor | 06/10/05 10:11 |
| AGC? | Stanley Lio | 06/10/05 19:25 |
| AGC as Steve said// | Payam Soltany | 06/10/05 10:49 |
| My Algorithm was: | Mehdi | 06/10/05 11:11 |
| My Algorithm was: | Mehdi | 06/10/05 22:08 |
| Ultrasonic Ranging | Mahmood Elnasser | 06/10/05 11:46 |
| Matched filter on the rescue | Enrique Viseras-marin | 06/10/05 13:25 |
| matched filters | Jez Smith | 06/10/05 14:36 |
| Phase locked amplifier | Steve M. Taylor | 06/10/05 15:04 |
| Its a different thing | Jez Smith | 06/11/05 01:41 |
| Ah | Steve M. Taylor | 06/11/05 05:35 |
| Thats the one.... | Jez Smith | 06/11/05 07:47 |
| Clever woman | Steve M. Taylor | 06/11/05 12:15 |
| Just an idea | Enrique Viseras-marin | 06/10/05 16:06 |
| The scope plot tells it all! | Kai Klaas | 06/10/05 17:43 |
| Largest signal | Stanley Lio | 06/10/05 19:24 |
| 'Greatest' echo is the wrong criterion! | Kai Klaas | 06/11/05 03:31 |
| | Stanley Lio | 06/11/05 03:47 |
| somehow I remember... | Stanley Lio | 06/11/05 07:47 |
| No, no... | Kai Klaas | 06/13/05 10:22 |
| Oops~ forgot... | Stanley Lio | 06/14/05 00:50 |
| the product | Stanley Lio | 06/10/05 19:40 |
| Power of transmission pulse | Mehdi | 06/10/05 22:41 |
| Preamp circuit Here | Stanley Lio | 06/11/05 03:52 |
| Add caps to remove base line noise | Kai Klaas | 06/11/05 03:58 |
| Another potential problem... | Musharraf Hanif | 06/11/05 06:32 |
| Problem with ADC? | Musharraf Hanif | 06/11/05 06:12 |
| possible solution to the ADC problem | Musharraf Hanif | 06/11/05 06:52 |
| Ok~ | Stanley Lio | 06/11/05 07:39 |
| Debug Result | Stanley Lio | 06/13/05 07:38 |
| ADC Sampling and code debugging | Mahmood Elnasser | 06/13/05 13:01 |
| sampling time | Stanley Lio | 06/14/05 00:53 |
| Adc for Ultrasonic? | Reza Javan | 06/14/05 01:22 |
| Next, comes to "average" | Stanley Lio | 06/20/05 21:05 |
| Why use the adc? | Russell Bull | 06/20/05 21:42 |
| Forgot to tell... | Stanley Lio | 06/21/05 00:07 |
| Circle in RED | Stanley Lio | 06/21/05 00:37 |
| Asking for help again - Filter | Stanley Lio | 06/22/05 05:20 |
| Notch | Steve M. Taylor | 06/22/05 06:05 |
| I don't know | Stanley Lio | 06/22/05 08:38 |
| DSP | Mahmood Elnasser | 06/22/05 14:38 |
| Nah | Steve M. Taylor | 06/22/05 14:39 |
| for the sake of learning | Mahmood Elnasser | 06/22/05 14:42 |
| so | Steve M. Taylor | 06/22/05 16:13 |
| I agree | Mahmood Elnasser | 06/23/05 00:13 |
| Amplitude | Stanley Lio | 06/22/05 20:23 |
| Op amps | Steve M. Taylor | 06/23/05 03:08 |
| 100pF | Stanley Lio | 06/23/05 07:32 |
| bypass ?? | Steve M. Taylor | 06/23/05 07:47 |
| Yes | Stanley Lio | 06/23/05 07:55 |
| No sort of bypass | Steve M. Taylor | 06/23/05 08:08 |
| BTE054 BTE054USS2 | Stanley Lio | 06/23/05 08:18 |
| Better noise control | Steve M. Taylor | 06/23/05 09:22 |
| re: BTE054 | Jacob Boyce | 06/23/05 13:29 |
| Replace LMV6032 with LM324 | Stanley Lio | 06/23/05 19:40 |
| re:low sensitivity | Jacob Boyce | 06/24/05 07:18 |
| re:no filtering | Jacob Boyce | 06/23/05 13:37 |
| Note | Steve M. Taylor | 06/23/05 14:27 |
| Notch filter? | Stanley Lio | 06/23/05 19:46 |
| No, | Steve M. Taylor | 06/24/05 04:16 |
| Bandpass | Kai Klaas | 06/23/05 17:31 |
| NOT a criticism | Steve M. Taylor | 06/24/05 04:19 |
| Update... | Kai Klaas | 06/24/05 07:02 |
| Umm... Nowadays? | Stanley Lio | 06/24/05 07:15 |
| Op amp parameters | Steve M. Taylor | 06/24/05 07:27 |
| "Filters for Dummy" | Stanley Lio | 06/24/05 07:34 |
| Have you tried it with ..... | Steve M. Taylor | 06/24/05 07:47 |
| Yes, I've tried it and it works well | Stanley Lio | 06/24/05 09:58 |
| Basic electronics | Steve M. Taylor | 06/24/05 10:06 |
| 0.002uF -> 3300uF | Stanley Lio | 06/24/05 10:15 |
| re:noise | Jacob Boyce | 06/24/05 10:29 |
| Exactly the same | Stanley Lio | 06/24/05 10:44 |
| test of signal | Jacob Boyce | 06/24/05 11:08 |
| It's over 1.2m | Stanley Lio | 06/24/05 19:49 |
| TWO bypass caps. | Steve M. Taylor | 06/24/05 11:05 |
| Two were found | Stanley Lio | 06/24/05 10:47 |
| Usenet | Steve M. Taylor | 06/24/05 11:17 |
| Why using a PLL, when a bandpass can ... | Kai Klaas | 06/24/05 11:06 |
| which is why ,,,, | Steve M. Taylor | 06/24/05 11:13 |
| Not sure what you meant.. | Kai Klaas | 06/24/05 12:16 |
| Already | Stanley Lio | 06/24/05 20:11 |
| But it MUST work properly!! | Kai Klaas | 06/25/05 04:21 |
| Circuit here | Stanley Lio | 06/25/05 05:45 |
| Op-amp to replace LM324 | Stanley Lio | 06/25/05 06:20 |
| Non-inverting Input Voltage Divider | Stanley Lio | 06/24/05 06:08 |
| LM567 | Stanley Lio | 06/24/05 07:19 |
| re:LM324 | Jacob Boyce | 06/24/05 08:25 |
| re:wrong link | Jacob Boyce | 06/24/05 08:28 |
| No AGC | Steve M. Taylor | 06/24/05 09:37 |
| AGC | Jacob Boyce | 06/24/05 09:48 |
| Yes | Steve M. Taylor | 06/24/05 09:51 |
| re: no AGC | Jacob Boyce | 06/24/05 10:10 |
| LMC6032 is much more linear than LM324 | Kai Klaas | 06/24/05 11:24 |
| re: | Jacob Boyce | 06/24/05 11:29 |
| re:attenuation of signal | Jacob Boyce | 06/24/05 11:42 |
| Good ones and bad ones | Kai Klaas | 06/24/05 12:23 |
| another article of interest | Jacob Boyce | 06/24/05 12:07 |
| tramsmit & receive | Reza Javan | 06/25/05 02:45 |
| how to measure the distance perfectly? | Pradono Antyanto | 06/26/05 08:26 |
| Fatal Error! | Mehdi | 06/26/05 09:25 |
| How about this one.... | Pradono Antyanto | 06/27/05 02:04 |
| Ultrasonic Detection Code! | Mehdi | 06/27/05 04:21 |
| is that right? | Erik Malund | 06/27/05 11:57 |
| Not right,,,,, | Michael Karas | 06/27/05 12:20 |
| Thanks! | Mehdi | 06/27/05 19:44 |
| another missing! | Mehdi | 06/27/05 19:55 |
| i'll try it.. | Pradono Antyanto | 06/28/05 05:08 |
| Some Applications of ultrasonic | Reza Javan | 06/25/05 02:49 |
| "Op amps for everyone" | Stanley Lio | 06/25/05 06:24 |
| woo... tiring trip | Stanley Lio | 06/26/05 04:55 |
| Check this one | Kai Klaas | 06/26/05 17:04 |
| Thanks | Stanley Lio | 06/26/05 19:52 |
| is it not fundamentally wrong | Erik Malund | 06/27/05 12:01 |
| Both | Stanley Lio | 06/27/05 18:09 |
| I knew that... | Kai Klaas | 06/28/05 05:16 |
| Synthetic grounds | Steve M. Taylor | 06/28/05 06:24 |
| no, Kai | Erik Malund | 06/28/05 06:30 |
| Steve, Erik | Kai Klaas | 06/28/05 07:05 |
| The circuit works, but... | Stanley Lio | 06/27/05 22:08 |
| Moral | Steve M. Taylor | 06/28/05 05:15 |
| Puh, what antennas... | Kai Klaas | 06/28/05 05:41 |
| Which means I can't use breadboard | Stanley Lio | 06/28/05 07:54 |
| In one word. | Steve M. Taylor | 06/28/05 07:55 |
| Using the LM318 | Stanley Lio | 06/28/05 22:19 |
| Missing 10K | Jerson Fernandes | 06/29/05 02:23 |
| More caps | Steve M. Taylor | 06/29/05 03:18 |
| Where? | Stanley Lio | 06/29/05 05:53 |
| Parallel | Jerson Fernandes | 06/30/05 06:37 |
| Does it work now? | Kai Klaas | 07/01/05 07:43 |
| Yes, it works fine | Stanley Lio | 07/02/05 02:26 |
| Theoretical work missed | Kai Klaas | 06/29/05 06:26 |
| Fatal Error! | Mehdi | 06/26/05 09:24 |
| Another article to peruse | Russell Bull | 06/27/05 01:19 |
| Another one... | Kai Klaas | 06/27/05 04:31 |
| same application | Mehdi | 06/27/05 06:47 |
| Sorry | Kai Klaas | 06/27/05 07:56 |
| Why sorry? | Mehdi | 06/27/05 08:31 |
| That's exactly what I want to do | Stanley Lio | 06/27/05 18:18 |
| which one is the best way? | Pradono Antyanto | 07/11/05 04:39 |
| Capacitors | Steve M. Taylor | 07/11/05 04:53 |
| i've got it | Pradono Antyanto | 07/11/05 05:10 |
| not the best solution | Benjamin Damet | 07/01/05 08:09 |
| Laser ranging | Steve M. Taylor | 07/01/05 14:59 |
| how much | Stanley Lio | 07/02/05 02:30 |
| I've withdrawn from the competition | Stanley Lio | 07/02/05 03:00 |
| NOT finance | Steve M. Taylor | 07/02/05 03:44 |
| Re: money is not everything | Stanley Lio | 07/02/05 09:38 |
| Good Luck | Raghunathan | 07/02/05 18:20 |
| good luck | James Hinnant | 07/03/05 00:58 |
| Good luck | Steve M. Taylor | 07/03/05 05:34 |
| Thanks! | Stanley Lio | 07/03/05 06:34 |
| The noise again | Pradono Antyanto | 07/12/05 05:01 |
| re:link | Jacob Boyce | 07/12/05 06:46 |
| Link | Stanley Lio | 07/12/05 09:20 |
| this is the link | Pradono Antyanto | 07/12/05 09:24 |
| re:noise | Jacob Boyce | 07/12/05 12:02 |
| 5-14 Khz | Pradono Antyanto | 07/12/05 12:56 |
| re:5-14kHz | Jacob Boyce | 07/12/05 13:02 |
| The Noise Amplitude | Pradono Antyanto | 07/12/05 13:13 |
| gain | Jacob Boyce | 07/12/05 14:19 |
| the problem is gain | Pradono Antyanto | 07/12/05 14:38 |
| Schematic | Kai Klaas | 07/13/05 17:29 |
| Thank You but... | Pradono Antyanto | 07/14/05 00:26 |
| Thank You but... | Pradono Antyanto | 07/14/05 00:36 |
| 1/4Watt is enough | Kai Klaas | 07/14/05 05:03 |
| Simulation result | Pradono Antyanto | 07/14/05 05:31 |
| Strange plots... | Kai Klaas | 07/14/05 07:09 |
| How about Compensation? | Pradono Antyanto | 07/15/05 00:24 |
| Not needed | Kai Klaas | 07/15/05 04:33 |
| Bigger Pulse | Pradono Antyanto | 07/30/05 05:35 |
| Bridge configuration can help | Kai Klaas | 07/30/05 10:46 |
| The same circuit but... | Pradono Antyanto | 07/30/05 22:52 |
| ...but much stronger | Kai Klaas | 07/31/05 05:02 |
| I have tried | Pradono Antyanto | 07/31/05 07:42 |
| What do you mean by ripple? | Kai Klaas | 08/01/05 07:37 |
| The ripple | Pradono Antyanto | 08/02/05 08:42 |
| No, it is not. The output from a logic | Erik Malund | 08/02/05 08:48 |
| Answer | Kai Klaas | 08/02/05 09:00 |
| Yup Kai | Pradono Antyanto | 08/02/05 09:06 |
| It's to adjust oscillating frequency | Kai Klaas | 08/03/05 07:10 |
Finished | Pradono Antyanto | 08/03/05 23:59 |
| Exams VS academic | Li Wk | 07/16/05 08:24 |
| "Plan B" | Stanley Lio | 07/17/05 05:09 |
| Universities in HongKong | Li Wk | 07/30/05 20:03 |