Johansson Mikrokator

A twisted thin metal strip holds a pointer, which shows the reading on a suitable scale.

Since there is no friction involved in the transfer of movement from the strip to the pointer, it is free from backlash.

This change in length will result in a proportional amount of twist of the metallic strip.

The lowering or rising of the plunger will cause the bell crank lever to move in forward or backward direction, and in turn, will twist or untwist the metallic strip.

The centre line of the strip is perforated in order to prevent excessive stress.