Sunday, January 17, 2021

Prototyping with Applied Science: Design and build a bite sensor

Join me in brainstorming and building a bite force sensor that allows paraplegic musicians to smoothly control an expression pedal. This video will include construction tips and tricks, methods, material selection, and a little design philosophy.

Tiny linear potentiometer used in final design: Spring-loaded linear potentiometer: Sil-Poxy for bonding silicone rubber to itself and other materials: Sorta Clear 40 - Platinum-cure silicone molding: Light-cure 3311 adhesive: (expensive, but this tube will last a long time) Blue lasers on eBay "5mW" *wink* Braided shield, highly flexible, 4-conductor cable: Fabric reinforced silicone sheet: Mechanical CAD on github: Support Applied Science on Patreon:


  1. It seems like the pneumatic prototype was a means for you to ‘visualise’ the user experience of the device. I think in a situation where you are more familiar with how the device will be used (e.g. you are building something for your own use) it might be easier to rule out otherwise appealing design approaches.

    In any case, brilliant video, and very elegant solution.

  2. Hi. I am a delighted follower of your YT channel. I wonder if you could be interested in the ultra precision voltage reference (LTZ100) described in EEVBLOG. I have read the massive amount of messages, and i wonder if The box that contain the Voltage reference , can be improved if it is sealed into a vacuum box with temperature sensors inside and outside which can control a pwm connected to a Peltier cell in order to keep a constant temp, 25deg e.g.. Since i don't have any idea how to do it, i kindly suggest you that challenge.

  3. Was is going to send you an e-mail, but couldn't find any email address... So since this isn't the very crowded comments section i'll post the email here:


    I'm involved in a months-long controversy regarding the legitimacy of the kinetic energy formula 1/2vmv. I would contend that Newton's formulation of momentum "mv" was quite complete and perfect and did not need to be fixed by Leibnitz "living Force". I would contend there is no definitive experimental evidence demonstrating the existence or collection of any kinetic energy. Momentum is the only energy produced, transferred, or conserved in the universe. Heat is a form of momentum and you must use momentum to create it.

    To the point, I am seeking to find, or I wish to request the creation of "definitive experimental evidence". The object is to propel two objects, one with half the mass of the other, with a same known Force (if using a spring it must be attached to a non movable object). It is argued that one will leave with twice the kinetic energy although they will have the same momentum's. The energy is then to be collected/measured with a reliable mechanism (like a spring). It is argued that no extra kinetic energy will be collected...Ever, and that the only energy evidenced will be the equal momentum's.

    I am willing to contribute financing to have this experiment scientifically and precisely performed. If you are willing to involve yourself in this project please respond with an estimate of what financing you might require. If you happen to know of a link to this experiment being performed (or one equally as straightforward and decisive) I would be most grateful if you could provide the link.

    Thanks for any consideration offered.
    Best regards,

    1. Newton's cradle is a good demonstration that momentum and kinetic energy are separate things: