JPS61167513U

JPS61167513U -

Info

Publication number: JPS61167513U
Application number: JP4996785U
Authority: JP
Priority date: 1985-04-05
Filing date: 1985-04-05
Publication date: 1986-10-17

Description

[Brief explanation of drawings]

第１図はこの考案に係る被検体の表面状態判別
装置の一例を示す系統図、第２図はその動作説明
に供するための波形図、第３図はセンサの一例を
示すための構成図、第４図はセンサ出力の実測波
形図、第５図は従来装置の一例を示す構成図、第
６図は従来装置のセンサ出力の特性図、第７図は
従来装置によるセンサ出力の実測波形図である。１……被検体、２……センサ、１１……ＡＣア
ンプ、１２……フイルタ、１４……整流器、１５
……レベル比較器、１６……積分器、２０……表
示素子、２２……ブザー、ａ……センサ出力、ｃ
……フイルタ出力、ｄ……整流出力、ｅ１……積
分出力、ｅ２……ピークホールド出力、ｆ……比
較出力。 FIG. 1 is a system diagram showing an example of the device for determining the surface condition of a subject according to this invention, FIG. 2 is a waveform diagram for explaining its operation, and FIG. 3 is a configuration diagram showing an example of the sensor. Fig. 4 is a diagram of the measured waveform of the sensor output, Fig. 5 is a configuration diagram showing an example of a conventional device, Fig. 6 is a characteristic diagram of the sensor output of the conventional device, and Fig. 7 is a diagram of the measured waveform of the sensor output of the conventional device. It is. 1... Object, 2... Sensor, 11... AC amplifier, 12... Filter, 14... Rectifier, 15
... Level comparator, 16 ... Integrator, 20 ... Display element, 22 ... Buzzer, a ... Sensor output, c
...Filter output, d... Rectified output, e1... Integral output, e2... Peak hold output, f... Comparison output.

Claims

[Scope of utility model registration request]

A sensor with a sharpened facing surface side is placed facing the inspection surface of the object at a certain distance, and by moving the object and the sensor relatively, the sensor detects the unevenness of the surface condition of the object. The AC component of this sensor output is filtered with a filter having a predetermined bandwidth to detect a frequency higher than a predetermined frequency related to unnecessary irregularities formed on the surface of the object. A detection signal having a frequency component is obtained, the level of the detection output is compared using the integrated output of this detection signal as a reference, and the presence or absence of the unnecessary unevenness is determined based on this comparison signal. Features: A device for determining the surface condition of a specimen.