Edtm, Inc.

Electronic Design To Market, Inc.

Other

Electric Design To Market, Inc.

Jeffrey A Simpson

Mark A Imbrock

Nathan Strimpel

Jed Martens

David K Hsu

Samuel J Wormley

Frank J Margetan

A device for accounting for environmental capacitances caused by an external object when detecting the presence and surface location of an electrically conductive coating on a transparent and/or translucent medium includes: a capacitive sensor that provides multiple capacitances; electronics that are responsive to the capacitances; an excitation source that generates a train of pulses, voltage or current to determine capacitances at the capacitive sensor; a selective indicator; and, a capacitive sensing plate that affects, or is affected by, the pulses, voltage or current from the excitation source.

Device and methods for accounting for environmental capacitances caused by an external object when detecting presence and location of surface coatings on transparent and/or translucent medium

Credit card-size low-E detection device for positioning of the device against a glass

Tint meter device having a slot for self-positioning of the tint meter onto a glass edge

Methods and apparatuses for measuring the thickness on at least one transparent or translucent medium and detecting the presence and/or location of any conductive coating on a non-conductive medium surface are described.

Apparatus and method for measuring thickness of transparent and/or translucent mediums using a reflecting signal that is normal or near normal to the mediums

An apparatus for detecting a fluorescing substance on a test material includes a light source configured to direct light energy toward the test material, and one or more display features configured to display fluorescing light from the test material. When light from the light source contacts the fluorescing material, display features allows the fluorescing material to project a fluorescing glow into an ambient environment near the apparatus.

System for detecting fluorescing substances on non-fluorescing material using the human eye

Methods and apparatuses for detecting the presence and/or location of any conductive coating on a non-conductive medium surface are described.

System for detecting conductive coatings on non-conductive medium surfaces

A system for detecting coatings on a transparent or semi-transparent medium includes a conductive sensor and a light reflection sensor which are configured to determine a presence and the conductivity of the coating on the medium.

System for detecting coatings on transparent or semi-transparent materials

A detection system for measuring glass that has been placed under strain and the resulting stress lines in the glass has a light source of individual elements configured to create a light distribution. The light distribution has a discontinuity which enhances the viewing of a photoelastic effect in the glass. The light source creates a viewable optical interference (i.e., color changes) which results from stress lines in the glass.

Method of enhancing measurement of stress in glass

A system provides a correlation between a field-tested measured light transmission, light reflection and/or light absorption in at least one transparent, translucent or semi-opaque medium to a pre-set measured light transmission.

System of correlating light measurements

A system of measuring light transmission and/or reflection has a light transmitter(s) and at least one light sensor which are used to generate a defined light environment over a specified light frequency range.

System of measuring light transmission and/or reflection

A method and apparatus for protecting an optical transmission measurement when sensing transparent materials. Sensing apparatus located in a housing directs a light beam at an upward angle to a sheet of transparent material and detects downward surface reflections of the beam from the transparent material. The light beam and the reflections pass through a transparent protective layer on the housing. A flow of clean air is passed between the protective layer and the transparent material to remove particles and liquid from the protective layer and from the space between the protective layer and the transparent material. Preferably, the protective layer is either made from a hydrophobic material or has a hydrophobic surface coating to facilitate blowing liquid and particles from the surface.

Method and apparatus for protecting an optical transmission measurement when sensing transparent materials

A method and apparatus for detecting properties of reflective transparent surface coatings on a sheet of transparent material, such as a sheet of glass or a sheet of plastic material. One or more light beams are directed at an angle to the surfaces of the material under test and the energy in surface reflections is sensed. The presence and surface location of a surface coating is determined from the relative magnitudes of surface reflections of the light beam. The type of coating is determined from the magnitudes of reflections from the surface coating of one or more different wavelength light beams. The surface coating may be, for example, a Low-E coating, or a metal or metal oxide coating left on a sheet of float glass.

Method and apparatus for detecting properties of reflective transparent surface coatings on a sheet of transparent material

A laser gauge for measuring the thickness of glass panes and the spacing between glass panes in a sealed insulated window. A laser beam is directed at a predetermined angle to a first glass surface. Reflections from the glass surfaces pass through a gauge housing, through a slot in an adjustable slide, and impinge on a matted finished surface of thin scale. The housing and the slide are formed from materials having a predetermined coefficient of friction relative to each other to provide smooth movement to said slide in said housing. The scale is sufficiently thin to avoid false readings from internal reflections within the scale. The scale is adjustable on the slide to align the first reflection with a reference indicia. For each glass pane and for each pane spacing, the slide is adjusted so that a first surface reflection aligns with the reference indicia and a second surface reflection is compared with indicia on the scale to determine the thickness of the glass pane or the glass pane spacing. A separate set of indicia may be provided on the scale for measuring the spacing between glass panes.

Gauge for measuring glass thickness and glass pane spacing

An apparatus and method for detection of icing onset and ice thickness upon an accretion surface utilizing ultrasonic echo ranging techniques, including propagation of ultrasonic waves through a buffer block. A portion of the wave energy is reflected by reference reflection means and another portion of the wave energy is propagated to the ice accretion surface and to a reflecting interface. The reflecting interface is represented either by the accretion surface in absence of icing, or by a thin ice layer at the icing onset, or by the ice/air interface of an ice layer accreted upon the accretion surface. Reflected waves are transduced to electrical signals. Relative signal amplitudes and time delays provide measures of particular icing conditions upon the accretion surface, and are appropriately resolved into calibrated signals indicating icing onset, ice thickness, and ice accretion rate.

Growing community of inventors

Wayne, NE, United States of America

Jeffrey A Simpson