A thin film device which may be used as a fuze or fuse. The device comprises a pair of conductive layers separated and joined to opposite... Show moreA thin film device which may be used as a fuze or fuse. The device comprises a pair of conductive layers separated and joined to opposite faces of a thin insulating layer to thereby form a three layer sandwich. One of the conductive layers and the insulating layer have a plurality of pin holes therein, the sides of each being coated by a bridge element of low density, low specific heat metal so as to short circuit or bridge the conductive layers. Terminal means are connected respectively to the conductive layers to supply electrical energy which passes from one conductive layer to the other conductive layer via the metal bridge elements. When the electrical energy exceeds a predetermined amount, the bridge elements vaporize. The vaporization of the bridge elements can be employed to initiate detonation of an explosive train thereby serving as a fuze. Alternatively, the device may be employed as an electrical fuse wherein the vaporization of the bridge elements caused by electrical energy interrupts the flow of electrical energy in an electrical circuit. Sponsorship: IIT Research Institute United States Patent Show less
A transducer for generating and detecting surface elastic waves in a non-piezoelectric material may include an interdigital electrode array... Show moreA transducer for generating and detecting surface elastic waves in a non-piezoelectric material may include an interdigital electrode array coupled to a piezoelectric crystal. The crystal is mechanically coupled to the non-piezoelectric material through an acoustical transmissive medium. Sponsorship: IIT Research Institute United States Patent Show less
An information display system is provided which comprises a body of material serving as both a substrate for thin film components and a medium... Show moreAn information display system is provided which comprises a body of material serving as both a substrate for thin film components and a medium for the propagation of Rayleigh acoustic waves along its surface. The thin film components include elements responsive to the Rayleigh waves to provide information at selected locations on the surface of the body. These components may be either the control elements or the output elements of the display system. Sponsorship: IIT Research Institute United States Patent Show less
A transducer for generating and detecting surface elastic waves in a piezoelectric material may include a metalic grating on the material... Show moreA transducer for generating and detecting surface elastic waves in a piezoelectric material may include a metalic grating on the material forming one electrode of the transducer and a counter-electrode separated from the grating by a dielectric layer. Sponsorship: IIT Research Institute United States Patent Show less
