منابع مشابه
Subnanowatt Microbubble Pressure Transducer
We present the first all-Parylene microbubble pressure transducer (μBPT). The μBPT utilizes an electrolytically generated microbubble (μB), trapped in a Parylene microchamber, for pressure sensing. Pressure-induced bubble size variation is detected by electrochemical impedance measurement. Real-time hydrostatic pressure measurement with excellent sensitivity (-10.7 Ω/psi, ±0.1 psi) up to 1.8 ps...
متن کاملUse of Catheter-tip. Velocity-Pressure Transducer
A catheter-tip velocity transducer with two high-fidelity pressure manometers was used to evaluate the left ventricular (LV) hemodynamic effects of intravenous propranolol (10 mg). Nine patients without clinical evidence of heart failure were studied. Pulsatile ascending aortic blood flow velocity and pressure and LV pressure were measured continuously during drug administration. Beat-to-beat c...
متن کاملInvestigation of Pressure Transducer Adapter Dynamics
A widely-used technique for reciprocating compressnr research is to use miniature pressure transQucers to measure cylinder pressure. A great deal of useful information on cylinder processes can be obtaine·· "!J this manner, providing that the information is accurate. These transducers must often be mounted outside the cylinder, in adapters, due to space constraints and interfering structures (s...
متن کاملDevelopment of a blood-pressure transducer for the temporal artery. NASA CR-293.
This report describes three phases of research on the direct force method of externally measuring arterial blood pressure. First, a miniaturized transducer was designed specifically for application on the superficial temporal artery of man. This device incorporateda differentialtransformer sensing element with special mounting to reduce response to acceleration. Second, a transducer of earlier ...
متن کاملComparison of Various Blood Pressure Measurement Techniques with Standard Office Based Blood Pressure Mesurement
Introduction: In order to control Hypertension, it is necessary to understand the methods of blood pressure measurement. Recent guidelines emphasize on employing appropriate blood pressure measurement techniques and white coat hypertension. Definition and methods of blood pressure measurement have changed in the American guideline based on SPRINT trial (Systolic Blood Pressure Intervention Tria...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JAPANES JOURNAL OF MEDICAL INSTRUMENTATION
سال: 1983
ISSN: 0385-440X,1881-4875
DOI: 10.4286/ikakikaigaku.53.11_581