tag:blogger.com,1999:blog-2714836888083145222.post4072675289033143013..comments2023-03-15T21:37:20.947+09:00Comments on まついのまうす製作録: 非平行センサ試作テストYukiMatsuihttp://www.blogger.com/profile/18362463941057464126noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-2714836888083145222.post-86661883822979811592013-12-31T06:07:07.038+09:002013-12-31T06:07:07.038+09:00Thanks for your efforts :)
As long as we wrap tran...Thanks for your efforts :)<br />As long as we wrap transmitter properly to limit the emitting angle with sufficient Radiant Intensity, 3mm IR LED works just fine. You answer told me the actual beam angle is still small experimentally, since I was deciding between 5MM and 3mm IR LED since I always use 3mm IR receiver(TEFT4300)<br />I realized OP265AD is available at both digikey and mouser in United States, but I am the kinda of guy like to use 950mm IR sensor pair ^_^Anonymoushttps://www.blogger.com/profile/00705243251808688252noreply@blogger.comtag:blogger.com,1999:blog-2714836888083145222.post-55562888720754135872013-12-30T17:37:22.417+09:002013-12-30T17:37:22.417+09:00Vector's IR LED is OP265AD. It's beam angl...Vector's IR LED is OP265AD. It's beam angle is as narrow as SFH4550. You can get some information about it at the homepage below.<br /><br />http://www.alldatasheet.net/datasheet-pdf/pdf/198417/OPTEK/OP265AD.html<br /><br />Datasheet says total beam angle is 18 degree, but Relative Radiant Intensity vs Angular Displacement diagram on the datasheet shows it's not true. Total beam angle may be narrower.<br />Even if I use SFH4550, the result may be same.<br />I write about my consideration to this experiment.<br /><br />http://matsui-mouse.blogspot.jp/2013/12/considering-emitters-light-process.htmlYukiMatsuihttps://www.blogger.com/profile/18362463941057464126noreply@blogger.comtag:blogger.com,1999:blog-2714836888083145222.post-73973402790356065342013-12-27T14:11:49.124+09:002013-12-27T14:11:49.124+09:00I think this is mainly because vector uses 3mm dia...I think this is mainly because vector uses 3mm diameter IR LED and makes relatively wider emitting angles than those 5mm diameter IR transmitters. The closer reflecting distance for half size micromouse probably was the other reasonable way to make this happen. The narrowest emitting angle I can find for those 3mm diameter IR LED are 15 degrees(full angle), may be trying SFH4550 with 6 degree full emitting angle will get different reading when parallel with receivers.Anonymoushttps://www.blogger.com/profile/00705243251808688252noreply@blogger.comtag:blogger.com,1999:blog-2714836888083145222.post-59574444342375740032013-12-25T18:48:01.024+09:002013-12-25T18:48:01.024+09:00I think so, too. Parallel arrangement seems easy a...I think so, too. Parallel arrangement seems easy and effective.<br />I wonder which direction transmitter's reflected light goes.<br />Vector's diagonal receiver catches more light than experimental circuit's horizontal one.<br />This means stronger reflected light comes from the front, though nothig reflects light.YukiMatsuihttps://www.blogger.com/profile/18362463941057464126noreply@blogger.comtag:blogger.com,1999:blog-2714836888083145222.post-60246248040259012192013-12-25T15:39:44.382+09:002013-12-25T15:39:44.382+09:00Very interesting test. I figured the sensor readin...Very interesting test. I figured the sensor reading will drop rapidly as long as the the receiver is not parallel with emitter. May be it's just easier to simply make transmitter and receiver parallel instead of some other ways. :)Anonymoushttps://www.blogger.com/profile/00705243251808688252noreply@blogger.com