by kowalski | Dec 8, 2016 | Calibration FAQ's, Ultrasound FAQ's
Whether or not one is required to have it done, responsible clinicians ensure their equipment is operating safely and effectively for the benefit of their patients. Manufacturers recommend annual calibration for the reasons detailed in the “WHY IS IT NECESSARY TO...
by kowalski | Dec 8, 2016 | Calibration FAQ's, Ultrasound FAQ's
Ultrasound calibration can only occur if the output is measured using a high‐precision ultrasound watt meter. The output is sampled at various levels and compared to the machine’s output meter indication. If the difference between the meter indication and the actual...
by kowalski | Dec 8, 2016 | Calibration FAQ's, Ultrasound FAQ's
Ultrasound is generated by applying an alternating voltage to a synthetic crystal in order to produce high‐frequency sound waves. The crystals, typically made of lead zirconate titanate, expand and contract one million times each second for 1‐MHz output and three...
by kowalski | Nov 28, 2016 | Ultrasound FAQ's
There are two important aspects to an ultrasound calibration:  : 1. Tuning. Each ultrasound transducer (crystal) reacts to a specific, unique frequency. When a sine wave of this frequency is applied, the crystal operates in a most efficient manner (highest...
by kowalski | Nov 28, 2016 | Calibration FAQ's, Ultrasound FAQ's
If there are questions regarding the operation of your ultrasound applicator, a simple test can verify the presence (or absence) of ultrasound. Sprinkle a few drops of water onto the surface of the ultrasound transducer (the part that contacts the patient) and slowly...