JPS62287109A - Measuring instrument for positioning interval - Google Patents

Abstract

PURPOSE:To improve the accuracy and lower the cost by forming the image of a part to be measured on a linear line sensor with high density, converting the lightness of the light of the image into an electric signal, and measuring intervals from the data. CONSTITUTION:The image light beams of the body 1 to be measured are split into two, one image is displayed on a monitor 16, and a microprocessor 22 is put in operation to align a bright line 18 which runs in the center of the screen with a measurement line. The other image is formed on the linear line sensor 25 which rotates from a reference position by the angle of rotation of the bright line 18 through the microprocessor 22. The angle of the bright line 18 is indicated to the microprocessor 22, so the sensor is driven by operating a stepping motor 27 by a driving device 26. Then, the lightness of the light of the measurement line inputted to the sensor 25 is converted into the electric signal and converted by the microprocessor 22 into the intervals, which are displayed. Consequently, the accuracy of the measurement is improved and the cost is reduced.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention Field of Industrial Application The present invention supports a large number of objects to be measured such as animals, plants, industrial products, etc.]
The present invention relates to a device in which the directions of quadrants are different, and dimensional intervals of meters are specified on a monitor image, and the measurements are performed using a linear line sensor.

Since the conventional technology is C, this type of measuring device stores the monitor image in the frame memo I/-, and measures the monitor image using a light pen by specifying the point to be measured using the trowel. However, the accuracy is not good because the number of pixels is Tll.

Purpose of the Invention The present invention provides a highly accurate and inexpensive measuring device that focuses an image of the measurement λj image on a highly efficient linear line sensor and converts the brightness and darkness of the image into an electrical signal and uses it as data. The purpose is to provide.

Embodiment FIG. 1 is a block diagram of an embodiment in which the present invention is applied to a transmitted illumination type distance measuring device. The object to be measured 1 is placed on the stage 3, and in the case of this figure, it is illuminated from the bottom, and the image beam is divided into parts within the enlarging device 30. One image beam is a TV camera 1/! The image is formed into an image and displayed on the monitor 16. A blue cross line 17 passing through the center is projected on the image plane of a monitor 16 via a superimposing device 15. This blue cross line 17
indicates the center of the monitor 16 and the center of the red bright line 1B which can be rotated on the screen by operating the microprocessor 22. X-Y so that the measurement line 2 of the object to be measured passes through the intersection of the crosshairs 17 on the image plane of the monitor 16.
Adjusting and configuring the mobile device 4, the microprocessor-2
Operate the operation panel 23 of No. 2 to align the red bright line 18 with the measurement line 2 of the object to be measured 1 displayed on the monitor 16.

The other divided image beam is guided through the microprocessor 22 to the CCD linear line sensor 25, which rotates synchronously from the reference position by the rotation angle of the red bright line 18 on the image plane of the monitor 16, and is imaged. Ru. L! The CCD linear line sensor 25 is receiving the same image of the measurement line 2 as the red luminescent line] 8 has stopped in line with the measurement line 2 of the object to be measured 1 on the image plane of the monitor 16. Become.

The CCD linear line sensor 25 is driven by the monitor 1.
Since the angle of the red bright line 18 projected on the image screen of No. 6 is indicated to the microprocessor 22 by the operation panel 23, this No. 18 is sent to the stepping motor 27 and driven via the interface 21 and the l/river 28. This is done via device 26.

The brightness of the light on the measurement line 2 taken into the CCD linear line sensor 25 is converted into an electrical signal, and the voltage is sent to the microprocessor 22 via the memory 24 and the interface 21.
# can be converted and displayed as desired intervals.

Effects of the Invention This apparatus can easily measure without rotating the stage when there are many objects to be measured and the directions of the measurement lines are not specified.

In this experimental example, a pulse motor is used to drive the linear line sensor, but a servo motor can also be used.

[Brief explanation of drawings]

Fig. 1 is a diagram in which the present invention is applied to a transmission type enlarging device and a distance measuring device, Fig. 2 is a diagram showing a measurement line portion of an object to be measured, and Fig. 3 is an external view of an embodiment of the present invention. . (Explanation of symbols) 1----------- Table 4------
----------- X -Y Transferring device 5----
−−−−−−−−−1 light source 6−・−・・−1−−−−・Mirror 7−・−−−−−−−−・・Objective lens 8−・−−−
---1--Image light beam 9--11 Half mirror-A10-
・------1-・-Half mirror-B11-・・---
11---Reflection mirror A12---------Reflection mirror B13------------Ichikan concubine lens 14-----------1 ---Telehi camera 15-
−−・−−−1−−−Superimpose device I
G----------Monitor 17--
−−−−−−−−One blue crosshair 18−−−−−−−−−
---One red bright line 19-----Interface A20--1・-1--Interface B21-----Interface C22---------m-Microprocessor 23-------------Operation 2/L--
−−−−−−−−−−−・Memory 25−−−−−−−
--1・-CCD linear line sensor 2 (3---
−−1・−・−・−Transmission mechanism 27−−−−−−−−・−
Stepping motor 28・−1−−−−−−−・−・
Driver 29 ------- 11 ---- Printer 30 ---------- 1 Enlargement device (521 pages

Claims (1)

[Claims] 1 The image beam of the illuminated measurement target part of the object to be measured is divided into two parts, one of the image beams is imaged by a television camera and displayed on the monitor screen, and the bright line passing through the center of the monitor screen is superimposed using a superimposing device. , operate the microprocessor operation panel to rotate the bright line on the monitor screen,
Adjust to the part to be measured. The other image beam is guided through a microprocessor to a linear line sensor that rotates at the same angle from a reference position in synchronization with the bright line. In other words, the linear line sensor stops in synchronization with the angle at which the bright line on the image monitor stops, so by operating the keyboard, the brightness of the light in the area to be measured is converted into an electrical signal, and the data is sent to the microprocessor via memory. Organize and display as intervals. The premise is that the center of the image of the object to be measured is the same as the center of the linear line sensor, the center of the television camera, and the center of the image monitor. If a standard scale is placed in place of the object to be measured and this dimension is read, the interval can be displayed in absolute value unless the magnification is changed.