Traveling heater method

Fig. 1.14 The quasibinary phase diagram SnSe-ZnSe and the setup for the traveling heater method (THM). ZnSe single crystal grown by THM and using SnSe as solvent (top...

The flow measurement principle for the time-of-flight sensor is illustrated in Fig. 4. In this method, the time taken for a heat pulse to pass over a known distance is recorded. The heat pulse generated by an electrical pulse applied to the heater microfilm travels due to the fluid flow and is detected by a sensor microfilm [8, 10]. The time between the heat pulse generation and its detection can then be used for flow estimation (Fig. 4b). 

The heater block and guide bushing must be aligned properly on the heater post for the injector piston to travel smoothly through both without binding. Before they can be permanently mounted you will need to locate the 1/4-20 mounting holes in each one. The following method to accomplish this worked well for me. 

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