Membrane Switch Used in Population

Simply said, a is a user interface that has flexible switches. Each switch closes a

circuit when depressed which immediately opens upon release.


ASTM Membrane Switch Criteria:

According to the the ASTM International, an international standards development organization, a

membrane switch must meet the following criteria:

Contain a membrane- a very thin flexible material which gives when pressure is applied.

Contain a static layer- a non-flexing layer with the circuitry that the switch poles connect to.

Make direct contact - poles of the switch must meet directly during operation. .

Function as a momentary action- the poles must instantly separate when the switch is released.

Use low voltage- direct current logic-level-signal circuitry must be employed.

Kinds of Membrane Switches:

are used for electronic handheld and stationary equipment including home

electronics, appliances, medical devices remote controllers and handheld devices. There are many

variations of membranes switches and thin panels but the most common are tactile and non-tactile

switches. Tactile membrane switches provide immediate feedback to the user; non-tactile

membrane switches do not provide tactile feedback and generally have a thinner profile. We will

review each of these in the pages that follow.