AcrySof Â® IQ Toric IOL Astigmatism-Correcting Monofocal Lens These advanced lenses are designed to correctboth cataracts and corneal astigmatism at the time of surgery, for clear distance vision usually without the need for glasses.
transÂ·duÂ·cer. A device that converts energy from one form to another. transducer (tranzdooÂ´sur), n a device that is activated by power from one system and then supplies a different form of power to a second system; used to convert electric energy into mechanical energy in ultrasonic and sonic scalers.
What is a transducer and what are the differences between an active and passive transducer? Solution: A transducer is a device that converts input energy into output energy. Typically the output energy is differing in kind but related to the input. Active transducers generate electric current or voltage directly in response to environmental stimulation. Examples of active transducers are thermocouples and piezoelectric accelerometers. Thermocouples produce voltage difference on its terminals that is proportional to the temperature of the environment. Passive transducers produce a change in some passive electrical quantity, such as capacitance, resistance, or inductance, as a result of stimulation.