Detection of conductive material in a thin film
First Claim
1. A method of detecting whether conductive material is present in a thin film, comprising:
- a. generating a single radio frequency using a transmitter;
b. guiding the generated radio frequency signal to a wideband antenna port;
c. transmitting the radio frequency signal using the wideband antenna to transmit the signal;
d. guiding the radio frequency signal flowing from the wideband antenna to a radio frequency detector;
e. converting the radio frequency signal to a viewable signal strength indicator; and
f. determining, based on the output from the signal strength indicator, whether the thin film is a conductive thin film,wherein the thin film is in the vicinity of non-conductive dielectric material and wherein the non-conductive dielectric material generates negligible change in the performance of the wideband antenna such that the presence of conductive material can be detected.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided are products used to detect and methods for detecting conductive materials in the presence of non-conductive materials, including non-conductive materials having dielectric properties. Specifically, the product is a conductive thin film detector, which is, preferably, a hand-held device designed to detect the presence of metal in, on, or under an object. This detection occurs even in the presence of non-conductive materials and other nearby conductive materials on objects that are not being tested. The device preferably includes: a power source, such as a battery; a method for activation, such as a press button; the necessary components to send and receive a radio frequency, e.g., a radio frequency generator, an antenna, and a radio frequency detector; and an indicator, such as a light or a meter, to, for example, indicate the strength of the radio frequency signal received.
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Citations
12 Claims
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1. A method of detecting whether conductive material is present in a thin film, comprising:
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a. generating a single radio frequency using a transmitter; b. guiding the generated radio frequency signal to a wideband antenna port; c. transmitting the radio frequency signal using the wideband antenna to transmit the signal; d. guiding the radio frequency signal flowing from the wideband antenna to a radio frequency detector; e. converting the radio frequency signal to a viewable signal strength indicator; and f. determining, based on the output from the signal strength indicator, whether the thin film is a conductive thin film, wherein the thin film is in the vicinity of non-conductive dielectric material and wherein the non-conductive dielectric material generates negligible change in the performance of the wideband antenna such that the presence of conductive material can be detected. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for detecting the presence of conductive material in the vicinity of non-conductive dielectric material, comprising:
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a. employing a system, comprising;
a single source of radio frequency energy coupled to a radio frequency directional router coupled to a wideband antenna;
a radio frequency detector; and
a signal detection indicator;b. generating a single radio frequency signal from the single source of radio frequency energy; c. guiding the radio frequency signal generated from the single source through the radio frequency directional router to a wideband antenna; d. radiating the radio frequency signal from the wideband antenna, wherein the wideband antenna is of sufficient bandwidth such that the non-conductive dielectric material generates negligible change in the performance of the wideband antenna; e. guiding the radio frequency signal reflected from the wideband antenna to the radio frequency detector through the radio frequency directional router; f. converting the radio frequency signal from the radio frequency detector to a signal strength viewable through the signal detection indicator; and g. assessing, based on the indicator, whether conductive material is present. - View Dependent Claims (8)
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9. A device for sensing the presence of a conductive thin film, comprising:
- a power source, an actuator switch, a radio frequency oscillator, a radio frequency amplifier, a radio frequency circulator having a first clockwise port and a second clockwise port, a wideband antenna, a termination load, a radio frequency detector, and a detection indicator;
wherein the power source is in series with the actuator switch; wherein the actuator switch is in series with the radio frequency oscillator and in series with the radio frequency amplifier; wherein the radio frequency amplifier is in series with the radio frequency circulator; wherein the first clockwise port of the radio frequency circulator is in series with the wideband antenna and the second clockwise port of the radio frequency circulator is in series with the termination load; wherein the termination load is in series with the radio frequency detector; and wherein the radio frequency detector is in series with the detection indicator; and wherein the wideband antenna provides the device with immunity to dielectric loading from non-conductive material in the vicinity of conductive thin film. - View Dependent Claims (10, 11, 12)
- a power source, an actuator switch, a radio frequency oscillator, a radio frequency amplifier, a radio frequency circulator having a first clockwise port and a second clockwise port, a wideband antenna, a termination load, a radio frequency detector, and a detection indicator;
Specification