Browse Prior Art Database

Electrostatic Flex Probe

IP.com Disclosure Number: IPCOM000096737D
Original Publication Date: 1963-Oct-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Frese, SJ: AUTHOR

Abstract

This highly sensitive probe is for measuring an electrostatic charge. It is formed by splitting the insulating layers 10, 11 and 12 and both the inner and outer brass shields 14 and 15 of triaxial cable 16. These are laid back to expose wire 17. This is cut back to permit sensor element 18 to be positioned within the insulation and shields of the cable. After the sensor, which is a brass cylinder, is secured to the wire by soldering, the insulation and shields are replaced and rubber sleeve 20 is slid over the cable to form a full grip for handling.

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Electrostatic Flex Probe

This highly sensitive probe is for measuring an electrostatic charge. It is formed by splitting the insulating layers 10, 11 and 12 and both the inner and outer brass shields 14 and 15 of triaxial cable 16. These are laid back to expose wire 17. This is cut back to permit sensor element 18 to be positioned within the insulation and shields of the cable. After the sensor, which is a brass cylinder, is secured to the wire by soldering, the insulation and shields are replaced and rubber sleeve 20 is slid over the cable to form a full grip for handling.

The probe functions as follows. A voltage is induced on the sensor element which is proportional to the measured charge. This voltage is fed into a high impedance(greater than 1010 ohms) D.C. amplifier. The electrostatic charge, measured in the form of a voltage signal, is then recorded by a high impedance device such as an oscilloscope.

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