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Quality Control of Keyboard Harmonia (Push-in Force Test)
- Force Measurement IMADA
- SOLUTIONS
- Compression Test
- Quality Control of Keyboard Harmonia (Push-in Force Test)
Description FAVORITES
Operating Force
The keyboard harmonica is a classic instrument used in music classes and school performances in kindergartens and elementary schools in Japan. Children in kindergarten and the lower grades of elementary school often have weak finger strength, and some may not be able to produce sound even when pressing the keys of a piano. Therefore, compared to the piano, the keyboard harmonica requires less force to press the keys and produces sound with a lighter touch. This ease of pressing the keys is an important point.
What is being introduced here is a test that measures the maximum load required to press the keys and manages the operational quality (ease of pressing) of the keyboard. In the video, a key displacement of 5mm is set, and the load values required to depress three keys by 5mm each are measured. The maximum load values for each key are then statistically analyzed and graphed to determine if they fall within the specified criteria. The graph is drawn at a speed of 2000 data points per second, allowing for accurate measurement of momentary changes in load and obtaining the maximum load values precisely. The measuring device used in the video detects the point of contact with the key and can automatically perform the entire measurement process, from pushing the key 5mm to returning to the starting position. This ensures the reproducibility of the test and allows for highly efficient measurements.
inquiry number
3A2033A
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Related sample
- Keyboard Harmonia
- Piano
Measurement Example Videos
Cautions
This video shows the testing image of objective sample. Some samples may not be suitable to measure with this configuration depending on their materials or shapes.
The example of product configuration is for your reference only. It varies depending on sample, measurement method and testing capacity.
The products used in this video may differ from the example of product configuration.
Please select the right product model for the product configuration. Refer to the specification of each product for the compatibility.
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6 Significant Digits (*Significant digits are meaningful digits that do not include zeros, which are used to indicate the scale.)
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Attachments, Grips & Fixtures
Custom Made
Measurements in Special Environment
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Particular Samples Measurements
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High capacity dual-column motorized test machine for compression test
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Test Stand With Large Table
Compression Test Attachment for LCD Panel
L-shaped Sample Fixture
Attachment for Opening/Closing Force Test of Takeout Container Lid
Attachment for Squeezing Force Test of Eye Drop Bottles
Compression Test Attachment for Squeeze Tube
Attachment for Welded Nut Tension Test
Attachment for Tube Tension Strength Test
Attachment for Hard-to-Grip Samples
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Individually Adjustable Torque Chuck Attachment
Resistance Force Measurement jig for Hair Combing Test
Attachment for Lateral Compression Test of Cup Containers
Biaxial Tension Tester
Resize & Modification
Press Test Fixture (Wide Size)
Remote Control Switch for Motorized Test Stand
Semi-Customized Compression Attachments
Large Size of Compression Tester
Large Size of 90 Degree Peel Tester
Force Control Cable with Signal Output Box
Manual Test Stand with Displacement Output Option
Cutting Base Plate with groove and knife edge probe
Upper attachment for 4-point bending test
Main shaft stopper with a butterfly screw for MTS series
Wide Rubber Roller for Peel Test
Motorized Rubber Roller for Peel Test
Peel Fixture for Packaged Cooked Rice Lid
Cam grip with spring
Wedge Grip Without Adaptor
Customized Peeling Tester
Test Stand with 3-stage Force/Displacement setting/holding function
Standards-Compliant Measurement
ISO 14704: 2000 Fine Ceramics 4-Point Bend Tester
Ampoule 3-Point Bend Tester
ISO/IEC 10373-1: 2006 Peel Tester of Identification Card
ISO 17480: 2015 Peel Tester for Gable-Top Package
ASTM D1894: 2014 Coefficient of Friction (COF) Tester
Attachments for score bend test
ISO 17480: 2015 45 Degree Complete Peel Test Fixture for Container Lid
IEC 61010-1 (2010) Spherical Jig for Compression Testing
