Lars Geir Whist Tvedt
Research Scientist
Lars Geir Whist Tvedt
Research Scientist
Publications and responsibilities
Measurement of urinary bladder pressure: A comparison of methods
Pressure is an essential parameter for the normal function of almost all organs in the human body. Measurement of pressure is therefore highly important in clinical practice and medical research. In clinical practice, pressures are often measured indirectly through a fluid line where the pressure is...
An in vivo MEMS sensor system for percutaneous measurement of urinary bladder
An in vivo sensor system for direct measurement of pressure in the human urinary bladder is developed. The core component in the system is a small-sized and highly sensitive piezoresistive MEMS pressure sensor element integrated in a sensor catheter. The sensor catheter is wired to an external...
UV NANO IMPRINT LITOGRAPHY (UV-NIL) AT SINTEF MINALAB
Conductivity of high-temperature annealed silicon direct wafer bonds
Silicon direct wafer bonding is a process with many application areas. Depending on the application, perfect insulation or negligible resistance is desired across the bonded interface. We have investigated the resistivity of hydrophilic high-temperature silicon direct wafer bonds by measuring the...
Bond strength of conductive Si-Si bonded seals
Bond strength of conductive Si-Si fusion bonded seals
The effect of true human synovial fluid on the functionality of an in vivo pressure sensor element
This paper presents a study on the feasibility of packaging a sensor element by a thin biocompatible coating. The goal of the work was twofold; Firstly to investigate the possible impact of the coating on sensor element performance; Secondly to examine the sensor element functionality after soaking...