Keystroke Force Testing Machine
Brief introduction and application:
The three axis (XYZ) servo-control automatic key loading-curve
tester which is Hi-tech machine integrated the precise structure,
auto control and precise pressure control into one is developed and
manufactured by our company. This tester has these advantages such
as powerful functions, easy programmable, easy operation and low
price. It is suitable for the test for the keyboard of cell phone,
the keyboard of the computer, the keyboard of ATM, the keyboard of
remote controller of TV/air conditioner.
This tester can make the operational platform to work in the
expected track by the movement controller, electrical motor and
moving platform; the test software can automatically collect the
data of load ~ displacement of the key, and create Load~
displacement curve accordingly, automatically save the testing data
and automatically judge Pass or Fail.
We got the patent for this tester in China, the patent
Rubber key curve test
Metal dome (elastic key )curve test
Cell phone key curve test
Various switch curve test
Computer keyboard curve test
Peak Force,Return Force,Distance,TT,Click rate and the dynamic
impedance FO can be shown directly on the graph. There’s no need to
calculate by people. (picture one)
Automatically inductive test method: no matter what height of the
key is, it can be controlled by computer automatically through the
test of the stroke and load.
After finishing test, it can show
automatically do a judgement, Pass or Fail.
Chinese or English interface can be optional . The unit
(N,Lb,gf,kgf) can be switched freely .
The testing method can be set, saved and called for use from the
saving record . The data and curve can be printed directly.
The life damping curve can be created, the test report can be
converted to Excel and PDF file format.
Air compression test, optional re-test function and curve
the X-Y coordinate for testing the specimen can be manually
selected in the computer software or directly input the AUTOCAD
file in the system to get the coordinate . These increase the
testing efficiency and the accuracy of the coordinate.
Cycle test is programmable. It is applicable to tests for batch of
same products, which saves lots of testing time.
In the instruction mode, it can check any coordinate needed to test
to ensure if the coordinate is correct.
Z axis is controlled by Micro measuring controller; collecting the
data of the load on key by precise load cell made by U.S.
TRANSCELL. This testing machine adopts high rigid steel as
structure, and the surface treatment is with surface polishing and
X,Y,Z axis adopt servo motor from Japanese Panasonic to drive;
transmission by precise ballscrew which can achieve the low noise
and long durability.
|Max load of Z axis||500N(50kgf)|
|Driving method of Z axis||AC Servo Motor|
|Range of driving(up and down)||0~150mm or specified by user|
|Resolution of displacement||0.001mm|
|Accuracy of displacement||±0.03mm|
|Test range||2Kgf, 5Kgf, 10Kgf, 20Kgf, 50Kgf ( optional )|
|Unit (switchable)||gf, Kgf, N, Lb|
|Resolution of load||0.01gf(0.098mN)|
|Range of test speed||0.1~200mm/min|
|Driving method of X-Y axis||AC Servo Motor|
|Control way||X: (right and left) Y: (forward and backward)|
|Driving range||X:0~460mm Y:0~200mm|
|Resolution of displacement||0.001mm|
|Accuracy of displacement||±0.05mm|
|Range of moving speed||0.1~12000mm/min|
|Max size of specimen||W500xD260xH100mm|
|Size of main unit||W1400xD760mmxH1700mm|
|Power supply||AC220V 10A or specified by user|
1. Main interface of the software:
The software is developed based on WIN XP operation system. There
are two language interfaces ( Chinese, English) can be switched.
Functions: it can show all the test data:FP,FC,FM,FR,CC(%)….etc.
Single re-test function.
Prompt judgement for Pass or Fail.
The test methods cab be set up, adjusted, saved and modified
Automatically inductive testing
Impedance conduction/ conductive displacement test function, etc.
Different judging conditions of low and up limit can be set
independently for many keys,
Testing conditions can be set at most 500 sets. the testing can be
saved automatically after
finishing the test, and will flyout the judging result of pass or
2. Automatic key testing system of XYZ axis:
Input the AUTOCAD file into automatic key testing system of XYZ
axis to create the coordinates and the testing track automatically,
refer to below picture. It can save the testing coordinate and
prevent from low efficiency to get the coordinate manually and
prevent from the incorrect test (exclusive technology in this
Several testing curves can be put on one A4 paper and to printout.
Test Report: can be converted into EXCEL, PDF file ETC for output
and can be printed.