What is a static level What is a level?

The HC-R static level is a high-precision liquid level measurement system, which is suitable for measuring the relative settlement of multiple points. In use, the containers of a plurality of static levels are connected with liquid pipes, and the liquid level of each container is measured by a magnetostrictive sensor, and the float position of the sensor changes synchronously with the change of liquid level, so that the liquid level change of each measuring point can be measured. Hello, a static leveling system is a precision instrument that measures the relative elevation change between two or more points.

The static level uses the principle of connecting liquid, the liquid level of multiple liquid tanks connected together by the connecting pipe is always on the same level, and the relative difference settlement of each static level can be calculated by measuring the liquid level height of the liquid storage tank. The static leveling system, also known as the connected tube level, is composed of at least two observation points, and a set of static level is installed at each observation point. The liquid storage containers of the static level are completely connected with each other with a liquid pipe, and the liquid is injected into the liquid storage container, and when the liquid level is completely stationary, the liquid level in all the connected containers in the system should be on the same geoid o, at this time, each container.

The static level is a device that uses the principle of the connecting tube to realize the measurement of the liquid level, and compares the changes of the liquid level of the two communicators, so as to obtain the change of the phase and vertical displacement of the two communicators. From mechanical level gauges to float and hydraulic differential pressure types, it is now time for dynamic levels with multi-sensor data fusion. The dynamic level has broken through the requirements of the applicable environment of "static", and can accurately measure the vertical displacement even in the state of vibration and movement.

First of all, let Shanghai Chaohui Settlement Monitoring System take you to understand what the static level is needed.

Let's talk about the application first: it has many uses, and can be used for automatic health monitoring of railways, subways, tunnels, comprehensive pipe corridors, slopes, buildings, iron buildings, substations, foundation pits, dams, and bridges.

Since each application is different, let's take a look at an example of an application on a railway.

The purpose of railway monitoring: to monitor the deformation of subway tunnels, shield sections, station structures and other subway structures to ensure the safety during the construction or operation of the subway.

Railway monitoring content: track bed settlement, stress and strain, joint displacement, tunnel verticality, horizontal displacement.

Then the relevant equipment required for track bed settlement is a settlement sensor (also known as a static level), and the relevant equipment is required to be a strain gauge.

The related equipment required for the seam displacement meter is the crack meter and inclination sensor inclinometer.

Tunnel verticality requires related equipment to be a crack meter and an inclination sensor inclinometer.

Horizontal displacement requires related equipment to be crack meter, inclination sensor, inclinometer.

It is possible to monitor any one of the same products individually, depending on the site situation.

Many times this is required for a project, some projects have their own system and collector, if there is no collector and system software, real-time data needs to be used system software and collector.

The level is divided into four grades according to its accuracy: precision level DS05, DS1; Ordinary level DS3, DS10D geodesy; s level; The following numbers represent the measurement accuracy of the instrument (the median error of the median altimetry difference per kilometer, i.e., the accuracy).

According to its structure, the level can be divided into four types: vertical sun micro-tilt level, automatic leveling level, electronic level and digital level.

At present, the most commonly used level in general engineering surveying is: DS3 inclination level (or DS3 automatic level).

Structure of the level: According to the principle of leveling, the main function of the level is to provide a horizontal line of sight and take readings from the leveling rod. Therefore, the level consists of three parts: a telescope, a level, and a base.

The principle of level: leveling is to use the horizontal line of sight, with the help of the leveling ruler, to determine the height difference between two points on the ground, so that the elevation of the known point can be calculated from the elevation of the unknown point.

The height difference between the ground points is measured according to the leveling principle.

The main components are the telescope, the tube level (or compensator), the vertical axis, the base, the foot spiral. According to the structure, it is divided into micro-inclination level, automatic leveling level, laser state mask level and digital level (also known as electronic level). According to the accuracy, it is divided into precision level and ordinary level.

The level came after the invention of the telescope and the level in the 17th and 18th centuries. At the beginning of the 20th century, micro-tilt levels were produced on the basis of the production of internal focusing telescopes and conforming levels. In the early 50s of the 20th century, there was an automatic safety mill level; In the 60s, a laser level was developed; In the 90s, electronic levels or digital levels appeared.

Level is a common term in surveying, mapping and architectural disciplines, and it is necessary to be proficient in the operation of the level and the corresponding elevation data processing in related industries.

In surveying and mapping, the level is one of the indispensable tools, which is used to transmit elevation, so as to establish a coordinated elevation system; In the construction industry, from the early site leveling, foundation pit excavation, to the later main construction, until the end of the whole project, the level plays an important role.

1: According to.

Principle: An instrument that measures the height difference between two points on the ground. Discipline: ().

Definition 2: An instrument that measures the difference in height between two points on the ground. Generally composed of, tubular or.

Vertical shaft, pedestal, etc. Discipline: ().

Definition 3: An instrument that measures the difference in height between two points on the ground. Discipline: Water Conservancy Science and Technology ();

An instrument that establishes a horizontal line of sight and measures the height difference between two points on the ground.

1.Total station, total station electronic tachymeter, engineering positioning.

2.In fact, the total station is simply a level and theodolite, a comprehensive point of rangefinder + measurement software, and its appearance can be said to greatly improve the work efficiency of surveyors! In addition to the theodolite and the level (can not completely replace the level, the accuracy of the level is not replaced by any other instrument), there are also data acquisition and engineering lofting!

The main and most basic function of the level is to measure the height difference between two points.

Level for elevation measurement, elevation transfer measurement.

The Leica TPS800 total station is a handy measurement device for surveying professionals, with long range and multiple on-board applications, which has earned the TPS800 total station a reputation for ease of use and durability, and can provide stable and reliable measurement results in harsh field conditions.

The Leica NA2 NAK2 precision level can be directly used for second-class level measurement in China. These two universal automatic leveling levels meet all requirements for high-precision leveling. Once the NA2 or NAK2 has been leveled, the automatic compensator ensures eye level and thus reliably reads the level.

It could be the same thing, or it could be that the spirit level refers to that kind of laser level.

It depends on what kind of level it is, if it's the difference between a laser level and a level, it's big!!

The accuracy of the laser level is not as good as the level (depending on the manufacturer), and the level is suitable for interior decoration and decoration.

The level is suitable for outdoor level calibration, and the laser level should be bought (Jiangsu Laisai, Zhejiang Bendeli) and the level should be bought (Jiangsu Ruide).

A level is an instrument that finds levels, such as a laser reticle ink line.

A level is a level that measures elevation such as the AP-281

The difference between the two is obvious.

An instrument that measures the height difference between two points on the ground according to the principle of leveling. In general·· You have to use it to do those projects... But the level may be backward now... Large-scale actual projects are estimated to use total stations more·· A total station is even more convenient

<>1. Micro-tilt level. With the help of the micro-tilt spiral to obtain a horizontal line of sight, the tube level has a small division value and high sensitivity. The telescope is connected to the tube level.

2. Automatic leveling level. When there is a slight tilt on the telescope's visual preparation line, the rolling compensator moves the telescope relative under the action of gravity to quickly obtain the ruler reading when the line of sight is horizontal, with high work efficiency and stable accuracy. 3. Laser level.

Replace manual readings with laser beams.