JPH10293066A - Laser-measuring instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a laser-measuring instrument under strict environmental conditions by accommodating parts in a box with an environment that matches usage environmental conditions. SOLUTION: A laser device and a measuring device 2 are accommodated in a box 1, and at the same time a temperature-adjusting device 7 and a moisture-adjusting device 8 are provided in the box 1. Therefore, environmental conditions required for the laser device and the measuring device 2 can be monitored and adjusted constantly and a stable measurement can be made regardless of those conditions even if, for example, plant temperature and moisture are high. Also, an stretching joint 10 can be included in a laser protection pope 4 for connecting the box 1 and one portion 5 of the plant. Further, by supporting the box 1 by a vibrationproof device 9, the influence of vibration and thermal deformation can be avoided, thus achieving a highly accurate measurement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a laser measuring device. More specifically, the present invention relates to a laser measurement device that monitors the state of a plant (for example, the state of a product) in a plant such as a thermal power plant or a chemical plant.

[0002]

2. Description of the Related Art To control a plant, a measuring device for monitoring the condition of the plant is indispensable. In order to enable more advanced monitoring and control, it is necessary to apply a measuring technology using a laser to the plant. ing.

[0003]

However, in a measuring device using a laser, installation conditions are strict, and it is necessary to manage temperature and humidity and take measures against vibration and thermal deformation. For example, when the temperature is high, the laser cannot suppress the heat generation of the laser light emitting unit, and is damaged, or the protection device operates to stop the device.

[0004] Further, the output of the laser fluctuates due to the fluctuation of the temperature, and the measured value may be shifted. Similarly, there is a problem that the accuracy of the optical component is deteriorated when the optical component is used in a place where the humidity is too high.

For this reason, there has been no laser measuring apparatus which can be used in places where environmental conditions are severe such as a plant.

[0006]

A laser measuring apparatus according to the present invention for solving the above-mentioned problems is characterized in that parts are housed in a box provided with an environment suitable for use environment conditions of the laser apparatus.

[0007]

FIG. 1 shows a laser measuring apparatus according to an embodiment of the present invention. As shown in the figure, a box 1 is fixed to a part 5 of a plant via a laser protection tube 4, and a laser device and a measuring device 2 are housed inside the box 1.

The laser device and the measuring device 2 are necessary for plant control by irradiating a laser beam 3 to a measuring object 6 flowing (or existing) in a part 5 of the plant through a laser protection tube 4. Obtain accurate measurement data.

The box 1 is equipped with a temperature control device 7 and a humidity control device 8, and constantly monitors the inside of the box 1 for environmental conditions (eg, temperature, humidity, etc.) necessary for the laser device and the measuring device 2, I am adjusting.

In addition, a cylindrical expansion joint 10 is interposed in a part of the laser protection tube 4 so that the box 1 is not affected by vibration, thermal deformation, or the like from a part 5 of the plant. Is taken into account.

Further, the plant environment is more severe, vibration,
If thermal deformation is large, the box 1 may be supported by a vibration isolator 9 composed of a spring or a damper to improve measurement accuracy.

In the laser measuring apparatus of the present embodiment having the above-described structure, a laser device and a measuring device 2 are housed in a box 1 and a temperature adjusting device 7 and a humidity adjusting device 8 are provided in the box 1. Therefore, the environmental conditions required for the laser device and the measuring device 2 can be constantly monitored and adjusted,
Even when the temperature, humidity, and the like of the plant are high, stable measurement can be performed regardless of such conditions.

[0013] An expansion joint 10 is interposed in the laser protection tube 4 connecting the box 1 and a part 5 of the plant.
Further, by supporting the box 1 with the vibration isolator 9, the effects of vibration and thermal deformation can be avoided, and highly accurate measurement can be performed.

[0014]

As described above in detail with reference to the embodiments, according to the present invention, the laser measurement-related parts are housed in a box in which the environmental conditions necessary for the laser device are set, so that the conventional equipment can be used. Since the laser measurement device can be used even in a place where environmental conditions are difficult, it is possible to obtain higher precision, higher speed, and higher information from the plant than before.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a laser measuring device according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2 Laser device and measuring device 3 Laser beam 4 Laser protection tube 5 Part of plant 6 Measurement object 7 Temperature control device 8 Humidity control device 9 Expansion joint 10 Vibration isolation device

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H01S 3/00 H01S 3/02 Z

Claims (1)

[Claims] 1. A laser measuring apparatus characterized in that parts are housed in a box provided with an environment suitable for use environment conditions of the laser apparatus.