David Henry Pearce

Title: David Henry Pearce: Innovator in Electro-Active Devices

Introduction

David Henry Pearce is a notable inventor based in Birmingham, GB. He has made significant contributions to the field of electro-active devices, holding a total of 5 patents. His innovative work has paved the way for advancements in sound generation and sensing technologies.

Latest Patents

One of Pearce's latest patents is a loudspeaker utilizing an electro-active device. This loudspeaker comprises a support and a sound-generating element mounted to the support for vibration to generate sound. The electro-active device is coupled between the support and the sound-generating element, allowing for vibration in response to an electrical signal. The device features a structure that extends along a minor axis, curving around a major axis parallel to the vibration direction of the sound-generating element. This design enables bending of successive portions, which causes a concomitant rotation of adjacent portions, ultimately changing the axial length of the structure along the major axis.

Another significant patent is a sensor using an electro-active curved helix and double helix. This sensor employs an electro-active device that is electrically connected to a detector circuit. The electro-active structure is designed as a continuous electro-active member curving in a helix around a minor axis, which is also curved around a major axis. Upon activation, the structure twists around the minor axis, generating an electrical signal that is detected by the circuit. This device is advantageous due to its large displacement, high sensitivity, and low compliance.

Career Highlights

Throughout his career, David Henry Pearce has worked with various companies, including Limited and Limited. His experience in the industry has contributed to his expertise in developing innovative electro-active devices.

Collaborations

Pearce has collaborated with notable individuals such as Anthony Hooley and Ursula Ruth Lenel. These partnerships have likely enriched his work and led to further advancements in his field.

Conclusion

David Henry Pearce is a distinguished inventor whose work in electro-active devices has made a significant impact on sound generation and sensing technologies. His patents reflect his innovative spirit and dedication to advancing the field.