Bluetooth Sensor Bow Debuts in String Quartet

Keith McMillen Instruments (KMI), a Berkeley-based hardware and software developer for instruments pertaining to music videos, computer, gaming and ergonomic technology industries, has developed a Bluetooth Sensor Bow, titled the K-Bow, which will be used in the premier show of Polar Suite, the first of its kid string quartet performed with and composed for the K-Bow. Douglas Quin's Polar Suite, 2011 will be performed by Kronos at the Syracuse University’s Setnor Auditorium on November 9, 2011.

Handcrafted K-Bow Sensor Bow

Composed by DouglasQuin, Polar Suite integrates the sounds created by traditional instruments and is then processed with the K-Bow’s movements. The San Francisco-based Kronos Quartet will bring together cello, viola, violin, interactive electronics and digitally processed samples, which will be controlled by the K-Bow.

The handcrafted K-Bow is made of graphite and Kevlar, a synthetic fiber. It can integrate CPUs and sensors while it feels like the traditional bow. The K-Bow features a 3D accelerometer capable of measuring the bow’s angle and the playing force, a hair tension sensor to detect the pressure the bow applies on the strings, a grip pressure sensor along with sensors to measure distance from the fingerboard, the distance from the bow frog and the angle or tilt of the bow.

Douglas Quin, the composer of Polar Suite stated that with the K-Bow, the possibilities for the composer are limitless. The cellist of the Kronos Quartet, Jeffrey Zeigler stated that with the bow, the musician can manipulate and control the sound without disrupting the act of playing the instrument.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Choi, Andy. (2019, February 24). Bluetooth Sensor Bow Debuts in String Quartet. AZoSensors. Retrieved on September 07, 2025 from https://www.azosensors.com/news.aspx?newsID=3485.

  • MLA

    Choi, Andy. "Bluetooth Sensor Bow Debuts in String Quartet". AZoSensors. 07 September 2025. <https://www.azosensors.com/news.aspx?newsID=3485>.

  • Chicago

    Choi, Andy. "Bluetooth Sensor Bow Debuts in String Quartet". AZoSensors. https://www.azosensors.com/news.aspx?newsID=3485. (accessed September 07, 2025).

  • Harvard

    Choi, Andy. 2019. Bluetooth Sensor Bow Debuts in String Quartet. AZoSensors, viewed 07 September 2025, https://www.azosensors.com/news.aspx?newsID=3485.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Your comment type
Submit

Sign in to keep reading

We're committed to providing free access to quality science. By registering and providing insight into your preferences you're joining a community of over 1m science interested individuals and help us to provide you with insightful content whilst keeping our service free.

or

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.