SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-28T20:15:01-06:00SparkFun ElectronicsCustomer #826249 on COM-10917 - Surface Transducer - SmallCustomer #826249urn:uuid:b99b77ba-25dd-8a1e-8d0a-1de2362f52032016-09-12T18:39:35-06:00<p>Well at least we know it passed QC ...</p>
Ole Wolf on COM-10917 - Surface Transducer - SmallOle Wolfurn:uuid:6cd51bf9-0952-ccd8-3e26-de673fb515462015-10-10T11:07:14-06:00<p>Don't press it against your skull. The reverberation is unbearable. ;)</p>
PointyOintment on COM-10917 - Surface Transducer - SmallPointyOintmenturn:uuid:fff88392-aac4-628d-f847-3e432b752e272015-05-03T00:23:37-06:00<p><a href="https://i.imgur.com/K1nm0TH.jpg" rel="nofollow">link to image</a></p>
Knutson on COM-10917 - Surface Transducer - SmallKnutsonurn:uuid:07a30604-f5ad-b00c-232a-d9418b5bea2a2014-12-23T12:30:06-07:00<p>Solder points: http://i.imgur.com/K1nm0TH.jpg</p>
Imaxinar DM on COM-10917 - Surface Transducer - SmallImaxinar DMurn:uuid:e8c0e059-086f-9992-9d6a-6f691432d34a2014-11-04T20:25:02-07:00<p>Impedance has in it a Resistance component .. but they are Two Different, but yet related things in the measurement world. A multimeter only measures resistance (via a DC voltage).<p>for a simple discussion on it see: http://www.bcae1.com/resvsimp.htm</p></p>
Customer #564818 on COM-10917 - Surface Transducer - SmallCustomer #564818urn:uuid:463d5f31-18ca-e2c7-6db9-9aec43a043af2014-10-23T18:43:15-06:00<p>Here is a VERY similar surface transducer datasheet:
http://www.daytonaudio.com/media/resources/240-614-dayton-audio-bce-1-spec-sheet.pdf<p>And a "how to use" information:
http://www.daytonaudio.com/media/resources/understanding-and-using-dayton-audio-exciters-revised.pdf</p><p>Extracted from:
http://www.daytonaudio.com/index.php/bce-1-22-x-14mm-bone-conducting-exciter.html</p></p>
M-Short on COM-10917 - Surface Transducer - SmallM-Shorturn:uuid:bbbbed89-e337-3774-3e28-08337181d7ab2014-09-18T10:10:19-06:00<p>Hehe!<p>To answer your question it probably depends mostly on how deep of a sleeper they are and how easily they are surprised. I would guess it would be about the level of someone speaking in the room. Also, please provide video proof once you figure out the answer.</p></p>
threadzless on COM-10917 - Surface Transducer - Smallthreadzlessurn:uuid:b34eed5e-a0f3-29ef-986c-b494247d5aaa2014-09-17T22:00:44-06:00<p>Can it be made loud enough to really surprise a sleeping person if you press it against their forehead?</p>
tzikis on COM-10917 - Surface Transducer - Smalltzikisurn:uuid:3388b294-ef02-577b-f5a8-0770a9b35b9f2014-07-26T11:36:34-06:00<p>long-forgoten question, but i'll still reply. they sound amazing! People can actually hear the sound caused my my skull's vibrations</p>
fricart on COM-10917 - Surface Transducer - Smallfricarturn:uuid:3ae9c2bb-0676-965d-149b-26f7d0b6af5d2014-06-29T09:26:25-06:00<p>Are you sure that the impedance is 8 Ohms? when I measure with multimeter the impedance is 4ohms. Is the measure wrong?</p>
Red Angel on COM-10917 - Surface Transducer - SmallRed Angelurn:uuid:b116ac39-0170-f90f-26dd-7410886e74502014-04-18T17:03:43-06:00<p>Can we use this transducer as a microphone?</p>
Chris_L on COM-10917 - Surface Transducer - SmallChris_Lurn:uuid:ad4c5bae-1205-ef6e-5c4b-9623f7ed9f7a2014-03-30T20:13:31-06:00<p>OK, got one of those... Am trying to connect it.
I see the 2 minuscule solder pads on one end, but is there a + and a - or it doesn't matter?<p>Also: will this be more or less sensitive to signal than the mini speakers you sell here?</p></p>
Radio Petushki on COM-10917 - Surface Transducer - SmallRadio Petushkiurn:uuid:5c874245-960c-2ae5-ca26-b53b4ab890f42014-03-24T17:49:21-06:00<p>I am looking to make a spring reverb in a homemade tank and would be curious to see if this would work as both the input and output transducer for the tank. Any way to get a peak at what this looks like with the top plate taken off? I may want to put a less bulky plate on so there is more wiggle response for the spring.<p>Any insights?</p></p>
Toni_K on COM-10917 - Surface Transducer - SmallToni_Kurn:uuid:998c6f88-0bc4-10d2-aee9-7e5b87f832ce2014-02-04T09:23:49-07:00<p>If you look at the 3rd picture of the transducer, you can see two little solder blobs on the left side sticking out from the green pcb connection. Those will be your connection points for your wires to an audio jack.</p>
Toni_K on COM-10917 - Surface Transducer - SmallToni_Kurn:uuid:6b44a9e1-6581-f0c5-b285-9ee1ceeda40d2014-02-04T09:22:52-07:00<p>They are very small, so you probably won't get too much in regards to 'surround sound' unless you hooked up a large number of them. Otherwise, you just need to hook it up to an audio jack.</p>
Josiahdg on COM-10917 - Surface Transducer - SmallJosiahdgurn:uuid:0204e883-a99e-7cb6-54d4-fe2a289dce9a2014-02-04T08:56:27-07:00<p>would I need to add power to this if connected to a tablet, and would it work to connect to my wall for surround sound?</p>
Project Audible on COM-10917 - Surface Transducer - SmallProject Audible urn:uuid:e6f951be-d516-ba5d-1d57-fb4dcaab5d852014-01-23T18:49:34-07:00<p>Completely new to this, could some please explain how i would wire this to say a 3.5 mm jack. Where to attach the wires to the transducer and such.</p>
Customer #416583 on COM-10917 - Surface Transducer - SmallCustomer #416583urn:uuid:9a980014-e225-972a-397e-cda54c57c9fe2013-03-08T09:19:30-07:00<p>Is there any datasheet for this transducer?</p>
RobertC. on COM-10917 - Surface Transducer - SmallRobertC.urn:uuid:5f7b6fe9-72ac-e2ea-6370-8a5e979a5d912013-02-12T11:32:32-07:00<p>I can do that.</p>
Customer #290312 on COM-10917 - Surface Transducer - SmallCustomer #290312urn:uuid:ba73c2a8-e429-645e-c24e-5136af79423b2013-02-12T08:12:19-07:00<p>Maybe add a link to the video here? (or better, on each product's page?)</p>
Sora62896 on COM-10917 - Surface Transducer - SmallSora62896urn:uuid:78b08897-e352-afb0-34b5-95741180c9182012-12-31T10:06:21-07:00<p>too late.....already put it in my cart... :-P</p>
J-nas on COM-10917 - Surface Transducer - SmallJ-nasurn:uuid:74844cd6-91f1-f263-a397-ffd685318c6f2012-12-04T08:07:54-07:00<p>Not trying to sound pessimistic, but 5 transducers might be overkill.<p>Much of how we perceive auditory spatialization depends on the physical characteristics of the external ear, as well as a time and intensity difference between right and left. With bone conduction, the ability to spatially locate a sound source is vastly decreased, as bone conducts very fast, and intensity differences are much smaller. As an example, underwater hearing is nearly all done by bone conduction (since the water in the external ear canal dampens vibrations of the tympanic membrane), and if you've ever tried to localize a sound source underwater, you know how difficult that can be. The sound just seems to come at you from all directions, almost like coming from within your head.</p><p>I think you would get virtually identical results with just 2 transducers (placed on the mastoid processes - the bony "bump" behind and below your ears) and a big ass sub (cause everyone needs a big sub).</p></p>
jolshefsky on COM-10917 - Surface Transducer - Smalljolshefskyurn:uuid:ce5d977f-c1b7-07d3-1afb-f0eb806acf1c2012-07-15T20:23:51-06:00<p>It seems surprising the resonant frequency is 16KHz. I'd more expect something like 16Hz, but the frequency response doesn't go lower than 300 Hz. I want to add a 60Hz hum effect to a battery-powered project and can't tell whether I need to get the larger surface transducer.</p>
Customer #337372 on COM-10917 - Surface Transducer - SmallCustomer #337372urn:uuid:ccc01fd5-e0b2-504d-0760-47dd02c7cc4d2012-07-11T12:05:32-06:00<p>Can someone tell me how one of these sounds when pressed against the back of their skull? Also, when it is being used listen to music as a "headphone" how well can others hear this?</p>
Ookseer on COM-10917 - Surface Transducer - SmallOokseerurn:uuid:8ed13de1-0bd4-eb13-f835-de77037c759b2012-01-25T15:57:31-07:00<p>I would also love a data sheet. In the meantime the dimensions listed in the description match my measurements.</p>
Elmoron on COM-10917 - Surface Transducer - SmallElmoronurn:uuid:dd7a5fd7-d39f-7e7e-41ac-be45a53ab9132012-01-20T20:28:22-07:00<p>But how would you go about attaching an audio jack to it?</p>
bTimmeh on COM-10917 - Surface Transducer - SmallbTimmehurn:uuid:a7b29ae7-05ac-e45f-4b60-646a3a5db4892011-12-14T10:28:15-07:00<p>anyone find a datasheet for this part?<p>or can we at least get a spec on the thickness? I have an idea for a USB powered set of speakers but i want to embed these transducers in my material.</p></p>
jrossetti on COM-10917 - Surface Transducer - Smalljrossettiurn:uuid:24140649-3913-3af7-98e2-4c28fea0e8272011-12-09T15:02:10-07:00<p>For what it's worth, I used "standard" eyeglass micro-screws and the thread seemed to work well. Added a tiny drop of threadlocker just in case, but I'm sure i didn't need to.</p>
DaveEaton on COM-10917 - Surface Transducer - SmallDaveEatonurn:uuid:5acd4f08-bffb-e4d7-0b90-73e60febc9e42011-12-05T06:56:16-07:00<p>I did this to see what happened with these small ones, too. They work fine. It is interesting to place the connected speakers onto various surfaces- I put mine on pizza pans, and they were loud, if tinny. And pressing them against my skull worked, too. Weird.</p>
DaveEaton on COM-10917 - Surface Transducer - SmallDaveEatonurn:uuid:5e477c2a-ec33-0bb4-5eb7-49a668580a542011-12-05T06:54:08-07:00<p>I didn't have those on hand, but I will try before tapping. Thanks. Once we know for sure, let's make sure it doesn't get lost in the shuffle.</p>
Dyerama on COM-10917 - Surface Transducer - SmallDyeramaurn:uuid:362e0d24-b757-a02a-aa68-e0889a8a6f8e2011-12-01T06:09:47-07:00<p>If I am not mistaken it is a 1-64. McMaster has screws - get the 1/8" long ones.</p>
DaveEaton on COM-10917 - Surface Transducer - SmallDaveEatonurn:uuid:8d81d99c-1517-4b8d-a4d5-f2f0b6be4bf92011-11-29T11:53:53-07:00<p>They don't fit quite right, but I got some 0-80 brass screws to just bite. I could hold them reliably with these, I think, but I am thinking I will just tap them for 0-80 or something like that. It would be nice to know rather than guess.</p>
aml25 on COM-10917 - Surface Transducer - Smallaml25urn:uuid:bf8a999c-4aeb-6607-b5e0-2484f7a944452011-11-21T13:28:23-07:00<p>That's what I did with the large transducers... works like a charm.</p>
Nick Short on COM-10917 - Surface Transducer - SmallNick Shorturn:uuid:7556e45b-776b-00b1-ec91-94830dcb9f072011-11-20T23:41:09-07:00<p>I believe vibrations would also modulate crystal frequencies, right?<p>That would be an interesting way to make a basic FM transmitter.</p></p>
thetoymaker on COM-10917 - Surface Transducer - Smallthetoymakerurn:uuid:eb5b3c63-73da-4abb-d439-8c5d17a1f0e12011-11-18T12:16:51-07:00<p>Is there a full datasheet on these things? with the mechanical drawings and all..</p>
Fate6900 on COM-10917 - Surface Transducer - SmallFate6900urn:uuid:c11828a4-7e21-a4ad-51e6-740fb44bec452011-11-17T23:42:41-07:00<p>Being completely new at this stuff,
could i not just solder a 3.5mm audio jack onto this sucker and plug it into my ipod?</p>
jrossetti on COM-10917 - Surface Transducer - Smalljrossettiurn:uuid:35cef8d0-dd69-ee15-80a0-355dc491d5122011-11-16T16:20:43-07:00<p>I second this question. I just received my pair today, they sound pretty good pressed against cardboard with my finger, but the thread size would be really helpful for a more permanent installation.</p>
haze on COM-10917 - Surface Transducer - Smallhazeurn:uuid:d81059c1-8de6-025e-df69-01c19b621b8c2011-11-16T11:24:20-07:00<p>What size are the two threaded holes on the bottom?</p>
RobertC. on COM-10917 - Surface Transducer - SmallRobertC.urn:uuid:8638bdb8-2d73-e3ef-30e0-3c5f633490e12011-11-14T14:33:22-07:00<p>yes. watch the product video last week for a size comparison, these are significantly smaller and lighter.</p>
JayKominek on COM-10917 - Surface Transducer - SmallJayKominekurn:uuid:f018461c-5c25-5b1c-1e8e-3628cd96c7312011-11-14T09:15:37-07:00<p>you probably want something more like this: http://www.sparkfun.com/products/8449</p>
aml25 on COM-10917 - Surface Transducer - Smallaml25urn:uuid:be77d085-5f13-eb02-57ca-117f32534f7d2011-11-14T08:11:26-07:00<p>What is the difference between these and the "Large Surface Transducers"? Will the large version be able to output with more power - thus more volume?</p>
Xsterawesome on COM-10917 - Surface Transducer - SmallXsterawesomeurn:uuid:e8693522-74aa-5be9-83b1-506b33b7d0ae2011-11-12T17:00:37-07:00<p>can i use 2 of these for an Controller's vibration feedback?</p>
Customer #110058 on COM-10917 - Surface Transducer - SmallCustomer #110058urn:uuid:991cc25e-585a-b90d-800b-f9da754e051b2011-11-11T22:17:21-07:00<p>I'm not an expert (yet) but I think the vibrations would generate unwanted voltages in the caps. Dave Jones from the EEVblog has a video about that with oscilloscope probes.</p>
frank26080115 on COM-10917 - Surface Transducer - Smallfrank26080115urn:uuid:2eb3a550-cc09-e00f-0bee-39ca959cba612011-11-11T19:15:31-07:00<p>would it be practical to use this to turn a PCB into a speaker?</p>
IllogicGate on COM-10917 - Surface Transducer - SmallIllogicGateurn:uuid:4dd9d025-1cca-5d38-01b5-885867fad6322011-11-11T17:30:36-07:00<p>Oooo, these are attractivvvvveeeee,,,, must... resist... searing urge... to add to cart!!!!!!</p>
RobertC. on COM-10917 - Surface Transducer - SmallRobertC.urn:uuid:c06a9dd7-274e-f498-1618-0e3aa1f4b3e62011-11-11T08:44:01-07:00<p>sure. it's a small PCB you can see in the first pic (the edge of it anyways), and there are two small solder tabs.</p>
jrossetti on COM-10917 - Surface Transducer - Smalljrossettiurn:uuid:488b6c2e-4b9d-491c-e76c-044a4dc97a6a2011-11-10T21:14:12-07:00<p>Any possibility of getting a photo of the connector?</p>
jrossetti on COM-10917 - Surface Transducer - Smalljrossettiurn:uuid:5e3ce899-4593-0ee1-6104-f1c24efa3a272011-11-10T21:07:35-07:00<p>That'll likely take some serious experimentation, as each one should have its own isolated 'cone' for optimal output, but that's a great idea!</p>
SlyVixsky on COM-10917 - Surface Transducer - SmallSlyVixskyurn:uuid:01eb2f8a-4c1c-9594-bc72-6d4937cb01b42011-11-10T20:52:10-07:00<p>Currently wondering what 5 of these would be like in a sports headband, routed into a low power 5.1 surround sound while playing an MMO. :D</p>