Hardened data acquisition system

Details Hardened data acquisition system Hardened data acquisition system

1991-05-03

1994-06-07

Chilcot, Jr., Richard E.

Measuring and testing

Ordnance and projectile

73 1204, G01L 100

Patent

active

053179145

ABSTRACT:
The hardened data acquisition system (HDAS) of the present invention is a mpact system built to fit within a canister container, which may be inserted in a moving projectile, such as an artillery shell. Any shock level, air pressure or acceleration/deceleration experienced by the HDAS is measured by a transducer as an analog signal. The analog signal, after proper amplification and filtering, is fed to an analog-to-digital converter and converted into a digital signal. The digital signal is in turn fed to a memory where a predetermined amount of the data is recorded. The thus recorded data can be downloaded to the external environment by an interface section. To provide integrity, the different electronic circuit components of the HDAS are encased in plastic instead of ceramic. Moreover, the different electronic components are encapsulated with an epoxy resin, before being inserted into a canister container. After insertion, the container is filled with shock isolation micro-balloon particles to envelop the electronic components. With such a configuration, the HDAS is able to withstand a tremendous amount of force and still be able to accurately record the acquired data. The HDAS is also able to maintain its memory for several months due to the very low power requirement in standby status, thus affording measurements in areas prohibiting immediate re- entry.

REFERENCES:
patent: 4510803 (1985-04-01), Perara
patent: 4729102 (1988-03-01), Miller, Jr. et al.
patent: 4944401 (1990-07-01), Groenewegen
patent: 5053967 (1991-10-01), Clavelloux et al.

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