Representing Innovative Manufacturers in the Northeast
Representing Innovative Manufacturers in the Northeast
The Trienco, Inc. Model 506, commonly known as a “blow detector”, is a good old workhorse machine and is the first effective air coupled nondestructive testing system ever developed. The original machine was placed in service in 1973 and provided continued service for 23 years after that. The 506 was developed by us and continues to be supported by us with no intended discontinuance in the future. There are many of these machines in 24/7 use today that are in excess of 25 years old. (PDF)
The 5600/5700 transmitter transducers now produce energy levels that are
8-10 times that of the 506, substantially greater than any other known
device. This is very important because the ability to penetrate
thick or attenuating materials is a direct function of the energy level the
transmitter is able to produce. A second factor is the internal
temperature of the product being inspected. Hot wood fiber based
panels can attenuate ultrasonic energy passing through them by up to 60%
compared to the same panel at 150 degrees F. At elevated temperatures,
the cellulose takes on a “plastic” characteristic which results in an
attenuation of the energy passing through in a manner which we have assigned
the term “viscous loss”.
These additional losses can cause spontaneous loss of signal in defect detectors with less energy output, causing erroneous identification of a panel as being defective. The 506 will normally function correctly on products up to 1" thick that have even a minimal amount of cooling after being pressed, although this maximum thickness can vary somewhat with the type of product. The 5600 unit has proven to be effective on product thicknesses up to and including 3 ½ “and we expect slightly greater advantages with the 5700 System. Today’s markets have resulted in a trend towards thicker products, requiring the utilization of lower grade raw material, which attenuates signals passing through the product. Automation Industries is the developer of these transmitter transducers and they are available only for use in product manufactured by Automation Industries Corporation.
Signal to noise ratio is also an important factor in these systems due the attenuation of signal in the product and the ambient conditions in the plant which produce varying levels of noise interference that can affect these detectors. The exceptional transmitter power of the 5600/5700 systems is a factor in improved signal to noise ratio. These systems also feature a very sophisticated signal processing technique which provides the net result of a signal to noise ratio that is around 50 times that of the 506 system. This results in accurate identification of defects, even under adverse conditions that the 506 will not tolerate at all.
Over the years, production lines have become faster and faster. The 5600/5700 Series systems sample 38% faster than the 506 to offset these faster line speeds.
The 5600/5700 Series uses an encoder to detect the actual speed of the product and can therefore more accurately determine the actual size of a defect even with varying line speeds, and, if a marker is employed, place the defect marks accurately over the defect. The defect marker can be placed separately past the detector, thereby eliminating back spray into the system sensors.
The 506 operates on a single frequency, the 5600/5700 systems operate on a frequency band, keyboard tunable by the user. This can be very important when very thick or very hard to penetrate materials are involved.
The 5600/5700 Series systems incorporate a PC platform. The 506 came into existence long before PCs existed. With the PC come the following capabilities:
The computer is recipe driven and password protected at multiple levels.