Piezo Study guides, Revision notes & Summaries

The fundamental or operating frequency - is affected by the thickness of the PZT element Which could not be used as the coupling medium (gel)? - barium sulfate The piezo electric effect is best described as - deformation from voltage sent to the crystals How thick is the element if the frequency is 3 MHz? - half the wavelength of the wave in the PZT The gel has greater impedance that the matching layer but less than the impedance of the PZT elements' - false The impedance of the PZT cryst...

AQA A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN 7552/1 Paper 1 Technical Principles Version: 1.0 Final G/TI/Jun23/E7 7552/1 (JUN) A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN Paper 1 Technical Principles Wednesday 7 June 2023 Afternoon Time allowed: 2 hours 30 minutes Materials For this paper you must have:  normal writing and drawing instruments  a scientific calculator. Instructions  Use black ink or black ball-point pen. Use pencil only for drawing.  Fill in ...

The 2 types of powered instrument devices are ____________ and ____________. correct answer: sonic, ultrasonic The 2 subtypes of ultrasonic powered devices are ______________ and _______________. correct answer: piezo, magneto What are some benefits/strengths of the powered instruments over hand instruments? correct answer: -several mechanisms of action (mechanical calculus removal, water irrigation, and cavitation) -small size of instrument working-end -easily inserted in pocket wit...

The fundamental or operating frequency - is affected by the thickness of the PZT element Which could not be used as the coupling medium (gel)? - barium sulfate The piezo electric effect is best described as - deformation from voltage sent to the crystals How thick is the element if the frequency is 3 MHz? - half the wavelength of the wave in the PZT The gel has greater impedance that the matching layer but less than the impedance of the PZT elements' - false The impedance of the PZT cryst...

The fundamental or operating frequency - is affected by the thickness of the PZT element Which could not be used as the coupling medium (gel)? - barium sulfate The piezo electric effect is best described as - deformation from voltage sent to the crystals How thick is the element if the frequency is 3 MHz? - half the wavelength of the wave in the PZT The gel has greater impedance that the matching layer but less than the impedance of the PZT elements' - false The impedance of the PZT cryst...

enhanced artifact - ANSWER The failure to remove electrode paste residue will MOST likely result in: a. discarded electrodes. b. enhanced artifact. c. improved detergent selection. d. improvement in adherence. Initiate emergency response system - ANSWER The most appropriate action a technologist would take when there is confirmed ventricular tachycardia lasting greater that 30 seconds is: a. Initiate emergency response system b. Assess, document and continue to monitor c. No immediate ...

Piezo-electric effect correct answers transducer rely on what in order to convert ultrasound to electrical signal cathode to anode correct answers describe the path of x-ray attenuation correct answers Loss of power in x-ray as it travels from the sending device to the receiving device deterministic correct answers risk in which it has a threshold; ex. burns thermoionic emission correct answers process of x-ray rproduction in whcih the release of electrons from the tungsten filament ...

RPSGT EXAM MOCK Questions & Answers 2023 enhanced artifact - ANS-The failure to remove electrode paste residue will MOST likely result in: a. discarded electrodes. b. enhanced artifact. c. improved detergent selection. d. improvement in adherence. Initiate emergency response system - ANS-The most appropriate action a technologist would take when there is confirmed ventricular tachycardia lasting greater that 30 seconds is: a. Initiate emergency response system b. Assess, document and c...

enhanced artifact - ANSWER The failure to remove electrode paste residue will MOST likely result in: a. discarded electrodes. b. enhanced artifact. c. improved detergent selection. d. improvement in adherence. Initiate emergency response system - ANSWER The most appropriate action a technologist would take when there is confirmed ventricular tachycardia lasting greater that 30 seconds is: a. Initiate emergency response system b. Assess, document and continue to monitor c. No immediate ...

A patient is referred for sleep testing for evaluation of suspected idiopathic hypersomnia of central nervous system origin. This sleep disorder is characterized by - correct answer Excessive daytime sleepiness without REM onset sleep. Origin of narcolepsy. - correct answer central nervous system. Device used to monitor respiratory airflow. - correct answer Thermocouple. Measurement for SpO2. - correct answer Pulse oximeter. Records ECG. - correct answer Modified Lead II. ...