公开(公告)号：US4491698A

公开(公告)日：1985-01-01

申请号：US389423

申请日：1982-06-17

Applicant: David A. Larson ,  Daniel A. Schumaker

Inventor： David A. Larson ,  Daniel A. Schumaker

IPC: H04R7/04 ,  H04R7/20 ,  H04R9/06 ,  H04R19/00 ,  H04R7/14

CPC classification number: H04R7/04 ,  H04R7/20 ,  H04R9/063

Abstract: The transducer diaphragm includes a folded sheet of thin film material, having a front surface and having a plurality of rearwardly extending projections in the form of fins or vanes thereon. Each one of the projections has at least one conductor portion disposed thereon. A substantially flat, thin sheet is secured to form the front face of the diaphragm and to help rigidify the folded sheet. In the preferred form of the invention, each one of the projections is generally channel-shaped throughout its length, and has a bight portion interconnecting a pair of leg portions. In one form of the invention, at least one portion of a conductor is disposed on each one of the projections. The diaphragm is made from a blank, which includes the sheet of film material having a pair of similar conductors, each configured in a similar manner and deposited on the opposite sides thereof in an oppositely disposed confronting relationship and in registration with one another, so that the blank can be readily folded to form the diaphragm, without causing it to bow or otherwise be deformed.

Abstract translation: 换能器隔膜包括折叠的薄膜材料片，其具有前表面并且具有多个呈翅片或叶片形式的向后延伸的突起。 每个突起具有设置在其上的至少一个导体部分。 固定基本平坦的薄片以形成隔膜的前表面，并帮助硬化折叠的片材。 在本发明的优选形式中，每个突起在其整个长度上通常为通道形状，并且具有连接一对腿部的弯曲部分。 在本发明的一种形式中，导体的至少一部分设置在每个突起上。 隔膜由坯件制成，其包括具有一对类似导体的薄膜材料片，每片都以类似的方式构造并且以相对设置的相对关系沉积在相对侧上并且彼此对准，使得 坯料可以容易地折叠以形成隔膜，而不会使其翘曲或以其他方式变形。