JPH0418322U

JPH0418322U -

Info

Publication number: JPH0418322U
Application number: JP6005190U
Authority: JP
Priority date: 1990-06-06
Filing date: 1990-06-06
Publication date: 1992-02-17

Description

[Brief explanation of drawings]

第１Ａ図は本考案の実施例による携帯型振動表
示器の正面図、第１Ｂ図、第１Ｃ図は同携帯型振
動表示器の作動を説明するための同様な正面図、
第２図は同携帯型振動表示器の側面図、第３図は
同表示器内に内蔵される電気回路のブロツク図、
第４図は本実施例の携帯型振動表示器より測定さ
れる振動機の例としての振動フイーダの側面図、
第５図は同携帯型振動表示器における振動検出器
の斜視図、第６図は第４図に示される被測定振動
機の振動に取り付けられた振動検出機の検出々力
波形、第７図は同振動機の駆動部の電源を遮断し
た場合の検出器の出力の過渡現象を示す波形図、
第８図は従来の振巾を読むための振巾銘板の正面
図及び第９図は同作用を説明するための側面図で
ある。なお図において、１０……携帯型振動表示器、
１４……液晶表示装置、２２ａ……振巾表示部、
２２ｂ……振動周波数表示部、４０……振動検出
器、４２……アンプ、４３……Ａ／Ｄコンバータ
、４５……マイコン。 FIG. 1A is a front view of a portable vibration display according to an embodiment of the present invention, FIGS. 1B and 1C are similar front views for explaining the operation of the portable vibration display,
Figure 2 is a side view of the portable vibration display, Figure 3 is a block diagram of the electric circuit built into the display,
FIG. 4 is a side view of a vibration feeder as an example of a vibration machine measured by the portable vibration display device of this embodiment;
Fig. 5 is a perspective view of the vibration detector in the portable vibration display, Fig. 6 is the detected force waveform of the vibration detector attached to the vibration of the vibrator to be measured shown in Fig. 4, and Fig. 7 is a waveform diagram showing the transient phenomenon of the detector output when the power to the drive section of the vibrator is cut off,
FIG. 8 is a front view of a conventional swing width name plate for reading the swing width, and FIG. 9 is a side view for explaining the same function. In the figure, 10...portable vibration display;
14...Liquid crystal display device, 22a...Width display section,
22b... Vibration frequency display unit, 40... Vibration detector, 42... Amplifier, 43... A/D converter, 45... Microcomputer.

Claims

[Claims for Utility Model Registration] (1) A vibration detector, an amplifier for amplifying the output of the detector, the amplifier, and an analog/digital converter connected to the amplifier. , a digital amplitude meter for a vibrating machine, comprising a calculation means for calculating the amplitude based on the digital output of the converter, and a display means for digitally displaying the amplitude value as a calculation result of the calculation means. , when the vibration detector detects the amplitude of a first type vibrator having a relatively large vibration acceleration, and when detecting the amplitude of a second type vibrator having a relatively small vibration acceleration.
A digital amplitude meter for a vibrator, characterized in that the gain of the amplifier is switched depending on when the amplitude of the vibrator is detected. (2) The first type vibrator is an electromagnetic vibrator,
Claim: The second type of vibrator is a vibrator using a motor/crank drive unit or a vibrating electric motor as an excitation source.
The digital vibration width meter for the vibrator described in (1).