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Standard Test Method for Measuring the Force-Displacement of a Membrane Switch (Includes all amendments And changes 12/31/2010).
Automaticky preložený názov:
Štandardná skúšobná metóda pre meranie sily - výtlakom prepínače Membránové
NORMA vydaná dňa 1.7.2007
Označenie normy: ASTM F2592-07a
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.7.2007
Kód tovaru: NS-54198
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
force-displacement curve, membrane switch, tactile recovery slope, tactile response slope, travel, ICS Number Code 29.120.40 (Switches)
Significance and Use |
The force and displacement values when converted to a slope are useful in quantifying the differences in tactile response among membrane switches. Specified resistance is useful to manufacturers and users when designing membrane switch interface circuitry. Actuation force and contact force are useful to manufacturers and users in determining the suitability, reference and aesthetics of a membrane switch in a given application. The tendency of a switch to make or break electrical contact at unexpected moments during closure or release can be a sign of a poor design. The degree of teasing can range from a simple annoyance to a failure of critical control process. The amount of switch sensitivity or teasing can also be a result of poor surface conductivity that will prevent an electrical event even when switch poles are in partial contact. |
1. Scope |
1.1 This test method covers the measurement of force displacement characteristics of a membrane switch. 1.1.1 This test method replaces Test Method F 1570. The Tactile Response Slope has been determined to be a more representative characterization of a tactile sensation. 1.1.2 This test method replaces Test Method F 1682. 1.1.3 This test method replaces Test Method F 1597. 1.1.4 This test method replaces Test Method F 1997. 1.2 Force displacement hysterisis loop curve can be used in the determination of Actuation Force, Displacement, Contact Force, Return Force, and Tactile Response Slope. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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