JPH035873Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is used to attach a sensor to a measuring part of an instrument that detects vibration and temperature caused by valve leakage and steam trap operation to judge whether the operation is good or not. Regarding equipment.

Data read from meters is displayed in analog or digital format, but when data is to be statisticized and managed during periodic inspections, it is necessary to read the data based on certain standards, regardless of who is performing the measurements.

Conventionally, when measuring vibrations, for example, a vibration sensor is built into the main body 31 as shown in FIG. As a signal, it was sent to the main device via a cable connected to connector 32. Ru.

Problems to be Solved by the Present Invention In the above method, the magnitude of the signal differs depending on the strength of the force with which the detection needle 30 is applied to the object to be measured, and the measurement data also differs. In other words, the data varies due to individual differences in the person performing the measurement, making it impossible to obtain the true value.

The technical problem of the present invention is to eliminate data variations caused by artificial measurements.

Measures to solve the problem A sensor holder with a space for arranging the sensor is attached to the upper end of a frame made of rigid material that is curved in one direction, and the lower end is placed on a vertical line passing through the center of the sensor holder. It has a structure in which a weight is formed so that the center of gravity of the entire device is located.

Effect: When a sensor holder with a built-in sensor is placed at the apex of the object to be measured, the center of gravity of the entire device is on the vertical line at the center of the sensor holder, so the device maintains balance and stability using this apex as a fulcrum. Then, stable measurements are made with the sensor pressed by the weight.

Effects of the invention: The force applied to the piping by the sensor eliminates individual differences between the measurers and variations in the pressing force, making it possible to obtain consistent and accurate measurement data.

Example An example showing a specific example of the above technical means will be described. (See FIG. 1) A sensor holder 3 is attached to the upper end of a frame 2 made of a rigid material and having a semicircular arc shape with a diameter larger than the diameter of a predetermined pipe 1. The sensor holder 3 is a plate with a thickness of about 10 mm, and two holes are made on the extension line of the frame and perpendicular to the top surface. Hollow rod-shaped connecting rods 4 and 5, each having a diameter thicker at the tip to provide a space for embedding the sensor, are passed through this hole with the thicker portion inside. The outer end is fixed with hollow caps 6 and 7, and the other end is equipped with a temperature sensor 8.
and a vibration sensor 9, and a spring 10, between the thicker diameter part and the lower surface of the sensor holder 3
11 is involved. The sensor wires 12 and 13 are connected to the external main unit through the hollow part of the connecting rod.

A weight 1 is placed at the bottom end of the frame 2 so that the center of gravity of the entire device is on the center vertical line of the sensor holder 3.
4 will be provided. The lighter the frame, the closer the weight will be to the center vertical line.

The handling method is very simple; hold the center of the sensor holder at the top of the specified pipe, and bring the sensor into contact with the pipe. The shock at this time is spring 1
0.11 to protect the sensor. Since the center of gravity of the device is on the plumb line of the center of the pipe and below the pipe, it maintains a stable state by balancing on the sensor part as a fulcrum. Then, the sensor pressed by the weight 14 obtains consistent data based on a certain standard.

It can accommodate any piping within the limits of the distance between the two sensors and the size of the frame.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the embodiment of the present invention installed in piping. Figure 2 is an external view of a conventional vibration detector. 2...Frame, 3...Sensor holder,
4, 5... Connecting rod, 6, 7... Cap, 8...
Temperature sensor, 9... Vibration sensor, 10, 11
...Spring, 14...Weight.

Claims (1)

[Scope of utility model registration request] A sensor holder with a space for arranging the sensor is attached to the upper end of a frame made of rigid material that is curved in one direction, and the center of gravity of the entire device is placed on the vertical line passing through the center of the sensor holder at the lower end. A contact device that forms a weight and contacts the measured part of the sensor.