Piano key depth measuring instrument and piano key depth measuring method

Abstract

The invention relates to a piano key depth measuring instrument, which comprises a measuring arm, a dial gauge, and a key pressing block for pressing down a key; a vertical groove is respectively arranged on the left and right sides of the key pressing block, and is horizontally aligned along the left and right directions. The extended measuring arm passes through the two vertical slots and slides up and down along the vertical slots. The left end of the measuring arm is placed above the key on the left side of the pressed key, and the right end of the measuring arm is placed on the right side of the pressed key. above the key; the dial gauge is fixed on the key block, and the downward probe of the dial gauge is located directly above the measuring arm; when the measuring arm is pushed up by the keys on the left and right sides of the pressed key, The measuring arm lifts the measuring head of the dial gauge to drive the dial gauge to read. It also relates to a method for measuring the depth of piano keys. The invention has the advantages of simple structure, convenient manufacture, convenient transformation and convenient operation, can digitize the sinking depth, and belongs to the technical field of piano production measurement.

Description

technical field [0001] The invention relates to piano production measurement technology, in particular to a piano key depth measuring instrument and a piano key depth measurement method. Background technique [0002] Piano keys include black keys and white keys, and the key depth measurement in this application refers to white keys. [0003] The depth adjustment of piano keys is an important link in piano production. The adjustment requirement is: the depth of each key conforms to the standard and must be consistent. [0004] In order to make the depths of all the keys consistent, the prior art is to adjust by pressing and comparing one by one by a skilled pianist. [0005] However, the prior art has the following disadvantages: 1. Senior professionals are required, and it is difficult to adjust accurately, which is difficult for ordinary people to do. 2. The sense of touch is highly subjective. 3. The key is pressed down manually, and the pressure is different each time,...

AI Technical Summary

Problems solved by technology

[0005] However, the existing technology has the following disadvantages: 1. It requires senior professionals, and it is difficult to adjust accurately, which is difficult for ordinary people to do.

2. The sense of touch is highly subjective

3. The key is pressed down manually, and the pressure is different each time, causing errors

4. It may be necessary to press multiple times for each key to perform comparison, which is inefficient

[0006] In the prior art, there is no measuring device for the tactility of the keys, let alone a device that can accurately measure the sinking depth of the keys

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