This paper presents a new temperature compensation technique for thermal flow sensors
that are operated in a constant-temperature-difference (CTD) mode by means of a simple …

The thermal air-flow sensor, which is heated to a temperature with a constant degree of
difference (Δt) from that of the gas, provides power consumption according to the flow rates …

In studying the performance of building envelopes, either to improve their energy efficiency
or to determine their behavior in passive solar applications, it is sometimes desirable to …

This paper presents a unified theory for different measurement concepts of a thermal flow
sensor. Based on this theory, a new flow sensor concept is derived. The concept allows …

A new offset compensation approach for integrated thermal flow meters is described. The
method is based on micromachined differential flow sensing structures with the heater split …

An integrated thermal sensor for flow rates below 200sccm, consisting of two central heaters
and two thermopiles, located downstream and upstream with respect to the heaters, is …

A smart thermal flow sensor system is presented. It makes use of a novel heater control
circuit, which can automatically set the operating mode to either constant power or constant …

In this paper, a new temperature compensation technique for thermal anemometers is
presented. The compensation is realized by using a temperature sensor independent of the …

Two new methods were developed to permit evaluation of the time response of installed
temperature sensors. One permits improved a priori estimation of the response that will be …

The errors of fluid temperature in Wheatstone-bridge circuit result from a variable gap
between Rh and Rf (or Rh′). Rf is changed by fluid temperature and Rh is changed by …