摘要:
Electromechanical transducer element for converting mechanical force, such as vibrations, into electrical signals and a method for fabricating the same, the transducer having a layered structure and comprising: signal and ground layers (103-105, 107) and dielectric layer(s) (109,110), the dielectric layers being permanently charged elastic cellular electret film layer(s), and wherein the transducer element is provided with additional material in order to improve the electric properties, and wherein in that the additional material (108, 106) is disposed in between the permanently charged elastic cellular electret film and at least one electrode of the element so that under compression the elastic electret film compresses most at the areas being directly against the additional material and less at the other areas of the element.
摘要:
An electromechanical control unit (12) for a musical instrument having keypad and/or touch pad areas (102) for controlling a signal processing unit, wherein the control unit (12) includes a surface element (101), whereby settings and values of said signal processing unit that can be changed by the user are controlled by touching of the surface element, which surface element has keypad and/or touch areas (102) provided with fixed and/or alternating symbols whereby changeable parameter values of the signal processing unit are controlled by touching and/or by gliding on said symbol with finger(s) or some other means, and wherein in order to adjust the parameter values that can be changed by the user the control unit consists of a thin and elastic layered structure whereby touching it generates there between the electrode surfaces a charge or voltage or capacitance change the place and/or amplitude of which is calculated with a microprocessor or alike, and based on this information said changeable parameter values are changed.
摘要:
Electromechanical transducer element for converting mechanical force, such as vibrations, into electrical signals and a method for fabricating the same, the transducer having a layered structure and comprising: signal and ground layers (103-105, 107) and dielectric layer(s) (109,110), the dielectric layers being permanently charged elastic cellular electret film layer(s), and wherein the transducer element is provided with additional material in order to improve the electric properties, and wherein in that the additional material (108, 106) is disposed in between the permanently charged elastic cellular electret film and at least one electrode of the element so that under compression the elastic electret film compresses most at the areas being directly against the additional material and less at the other areas of the element.
摘要:
Vibration transducer unit for converting vibrations to electric signals, in which unit there is a transducer part (11) and a signal processing part (14), like a preamplifier part. The transducer part (11) and the signal processing part (14) are integrated to a single structure.
摘要:
Stringed musical instrument transducer for converting string vibrations into electric signals, which transducer is composed of at least one electromechanical sheet (107, 108) and is capable of converting string vibrations into electric signals and in which transducer at least one of the electrodes required by the electromechanical sheet is disposed on the surface of one or more thin and flexible dielectric materials, said electrodes (109) forming electrically conductive surfaces of the transducer for connecting the transducer to a signal processing device, and which transducer is constructed of a unitary, thin and flexible layered sheet structure and has the same width throughout its length.