Activity for tilly‭

Type	On...	Excerpt	Status	Date
Comment	Post #289543	Thanks for the answer. (more)	—	9 months ago
Comment	Post #289547	Great answer. Thanks. (more)	—	9 months ago
Comment	Post #289549	Thanks for the helpful answer. (more)	—	9 months ago
Edit	Post #289534	Post edited:	—	9 months ago
Edit	Post #289534	Post edited:	—	9 months ago
Edit	Post #289534	Post edited:	—	9 months ago
Edit	Post #289534	Initial revision	—	9 months ago
Question	—	Can the corner frequency of thermal noise change with change in source impedance? In EMG there is a certain level of thermal noise created at the electrode-gel-skin interface which depends on the skin-electrode impedance (also known as source impedance). I have been able get the thermal noise data for only dry electrodes of different materials. Dry electrodes are the same elect... (more)	—	9 months ago
Comment	Post #289482	Thank you, that helps. Where can I look for an experienced medical device electrical engineer? (more)	—	9 months ago
Edit	Post #289471	Post edited:	—	9 months ago
Edit	Post #289471	Post edited:	—	9 months ago
Edit	Post #289472	Initial revision	—	9 months ago
Question	—	Essential safety features of an EMG/medical grade device? EMG consists of an electrode gel skin interface, op-amps with a certain gain and an ADC. Question is in the context of passive electrodes. What are the essential safety features of such types of hardware? One option to make such hardware safer is to make it battery powered. What other safety fe... (more)	—	9 months ago
Edit	Post #289471	Initial revision	—	9 months ago
Question	—	What is Ground Electrode in EMG? Learning about EMG as a part of our research. My team has at least some experience with electronics that is worth mentioning, but don't have any experience with EMG/bio-potentials. Most EMG hardware is designed without a ground electrode, but an engineer basically recommended using a ground electrode... (more)	—	9 months ago