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Inductive Speed Sensor For Cars(L64324C)

2014-11-25 23:06  
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This article describes the Inductive Speed ??Sensor For Cars (L64324C). The principle is very simple, very practical. The circuit components can help you understand better grasp this principle. For example, in this circuit, you can go to find and buy these components: L64324C.

Here’s a way to avoid winding the pickup coil for the inductive speed sensor used in projects such as the Speed Alarm, Gearshift Indicator, etc. All you need to do is carefully break open the plastic case of a small relay and cut away the armature mechanism, so that you are left with the relay coil and core. If you are careful you can retain the terminating pins that are moulded in the plastic former to solder the shielded cable to.

Figure:1

Figure 1 

The relay coil can then be mounted on a strip of aluminium which can then be used as a mounting bracket. Fishing rod binding thread can be used to fix the coil to the bracket, after which you can use binding varnish to protect it after the wires have been soldered. You can then dip the whole lot in epoxy for further protection or just use a small piece of heatshrink.

 


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