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US 7,699,003 B2Granted
Safety and arming unit for the fuze of a projectile
AssigneeJunghans Microtec GmbH
InventorsAlexander Zinell, Reiner Hennig, Rolf Kaden
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AssigneeJunghans Microtec GmbH
InventorsAlexander Zinell, Reiner Hennig, Rolf Kaden
Estimating the term…
A safety and arming unit with a safe separation distance device (14), which acts as a function of a free-flight incident flow and temperature, for the fuze (12) of a projectile (11), which fuze is hermetically sealed from environmental influences, has, as a measurement device for the cooling, as a function of the incident flow, of a conductor through which current passes, in the heating circuit (18) of a resistant heating element (16) which is fitted flat on the fuze casing surface (17), an electronic current measurement apparatus (21) which is connected upstream of an evaluation circuit (22), in order to ram a firing circuit. Two heating elements (16, 16″), which are fed in the same way, are preferably arranged one behind the other in the incident flow direction (15), and, additionally as an environmental temperature sensor, a comparison heating element (16′) which is not influenced by the incident flow (15). This results in a reliable safe separation distance, even for slow projectiles (11), without adversely affecting their aerodynamic behaviour and independently of the environmental atmosphere.
A safety and arming unit including a safe separation distance device (14), which acts as a function of a free-flight incident flow and a temperature, for a fuze (12) of a projectile (11), wherein the safe separation distance device (14) has a measurement device measuring the cooling of a conductor through which current passes, as a function of the incident flow;
A safety and arming unit including a safe separation distance device acts as a function of a free-flight incident flow and a temperature, for a fuze (12) of a projectile (11), wherein the safe separation distance device (14) has a measurement device measuring the cooling of a conductor through which current passes, as a function of the incident flow;
A safety and arming unit including a safe separation distance device (14), which acts as a function of a free-flight incident flow and a temperature for a faze (12) of a projectile (11), wherein the safe separation distance device (14) has a measurement device measuring the cooling of a conductor through which current passes, as a function of the incident flow, said conductor providing at least two heating elements (16-16″) which are located one behind the other in the direction of the incident flow (15) and having equally supplied heating circuits (18, 18″);
Dependencies are inferred from the claim text.