G - Physics – 01 – W
Patent
G - Physics
01
W
349/35, 349/37,
G01W 1/14 (2006.01) G01B 17/02 (2006.01)
Patent
CA 1244931
Abstract of the Disclosure Apparatus for determining the depth of precipitation accumulating on the surface of a pathway, such as an airport runway or the like, includes a sensor having electrical trans- ducer means for emitting and sensing ultrasonic energy and having a body of material adapted to be embedded in the path- way with the top surface of the body being substantially flush therewith and exposed to the precipitation, the transducer means being physically coupled to the body. A circuit causes the transducer means to emit pulses of ultrasonic energy, which are reflected as first and second reflections from the top surface of the body and from the upper surface of an accu- mulation of precipitation on the top surface of the body and are respectively returned to the transducer which, in response to the reflected pulses, produces corresponding first and sec- ond electrical signals. An amplifier is connected to the transducer means for amplifying the first and second electri- cal signals corresponding to the first and second reflections, thereby to produce an amplifier output. Another circuit is connected to the amplifier for initiating a first timing sig- nal upon the occurrence of the first electrical signal. A further circuit compares the amplifier output with a threshold level which has a magnitude that decreases with time, the op- eration of the comparing circuit being started upon an occur- rence of the first timing signal, the comparing circuit initi- ating a second timing signal when the amplifier output reaches the threshold level. Still another circuit in the apparatus generates a third electrical signal representing the depth of the precipitation as a function of the time interval between occurrences of the first and second timing signals. Other circuits and methods for depth and related measurements are also described.
497190
Smart & Biggar
Surface Systems Inc.
LandOfFree
Ultrasonic depth measurement apparatus and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasonic depth measurement apparatus and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic depth measurement apparatus and methods will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1173258