![]() In addition, doctors that are just starting their practices may charge less than those who are well established. The cost of cosmetic procedures can vary greatly from small towns to larger cities. ![]() On the other hand, people who have a lot of loose, saggy skin will probably benefit from traditional, surgical face lifts.Īs for the cost of an ultrasound face lift, it depends on the area of the country where you live and the individual provider. I think that a person who wants mild changes to his or her face will see the best results from an ultrasound face lift. The third person, on the other hand, doesn't feel that she can see any differences in her before and after photos. I know three people who have had them, and two are very happy with the results. You can tell us about it over on our Facebook page or get in touch with out Measurement Experts.November 29, I think that the results of an ultrasound face lift depends on each individual. What experience have you had with ultrasonic sensors in lift stations? We'd love to hear about how ultrasonics have have been successful, and ways that they haven't been so successful. They are very accurate, easy to maintain, and offer a lot of flexibility. Ultrasonic sensors are a great way to avoid contact with a rather caustic liquid media. When the amount of foam could be cause for concern, it’s time to reconsider a submersible pressure transducer. For example, one inch of foam may not be a problem, but 18 inches of foam could potentially cause major problems. This only becomes an issue when the amount of foam becomes critical. Ultrasonic sensors have trouble cutting through excessive foam. In some lift stations, large amounts of foam can build up on the surface of the water. This is a great mounting method when practical. Standpipes help raise the sensor if needed, and a stilling well captures a column of liquid inside a full-length tube. ![]() This, however, is limited by the blanking distance of the sensor, which demands that the sensor be mounted about a foot above the highest point of measurement. A simple approach, that will have a similar affect as some of the programming options, is to mount the sensor lower in the well, below as many obstructions as possible. Mounting is another way to ensure better performance from your ultrasonic sensor. Window – specifies a window for measurement, and ignores objects outside of that window Pulses – adjusting the power of the transducer pulses allows you to have a lower sensitivity and thus a narrow beamĪveraging – increasing this effect will smooth out readings during turbulence Sensitivity – lowering the sensitivity effectively narrows the ultrasonic “beam” by blocking out weaker signals returning from objects on the side of the well For example, an APG ultrasonic has several programmable features that can help:īlanking distance – ignores objects within a certain distance from the transducer face Some ultrasonic sensor manufacturers provide a great deal of programming flexibility, which allows the user to “tune” the sensor for maximum effectiveness. It is not uncommon for ultrasonic sensors in lift stations to have challenges with getting false readings from other stuff in the lift station. As the target moves away from the sensor, the area that the sensor can read grows larger. The “beam” of an ultrasonic sensor reaches out in much the same way a flashlight does. In an ideal world, the sensor is mounted in such a way that no object but the desired target ever returns an echo to the sensor. The biggest challenge to using ultrasonic technology in a lift station is false measurements. Therefore, installing & maintaining an ultrasonic is quite a bit cleaner, in more ways than one. Ultrasonic sensors avoid these problems because of their non-contact approach. As we discussed in the previous post about submersible pressure sensors, anything that comes into contact with wastewater must be durable enough to handle the turbulence & debris. They are a popular choice for lift stations primarily because of their non-contact approach to measurement. Today’s ultrasonic sensors are more accurate than ever before. When the sound waves bounce off the target object & return to the sensor, the sensor is able to calculate the distance to the object based on the time it takes for the pulse of sound to be sent & received. They function by sending pulses of high frequency sound waves. Ultrasonic sensors are another common pick for continuous level measurement in lift stations. As a reminder, continuous level measurement provides large economic benefits in energy savings when using pumps with variable speed motors. In the last blog post in our series on sensors in lift stations, we discussed the benefits and challenges of using a submersible pressure transducer for continuous level measurement.
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