Blog

Laser levels are a mainstream tool typically used in the construction and surveying industry for leveling and aligning applications. They project a constant red or green line onto a surface on a horizontal or vertical plane and can be used for anything from hanging a picture to professional building work.

The measurement of fluid density, viscosity, temperature, and pressure in the field of use will also affect the measurement accuracy of the flow meter, especially in the case of gas flow measurement, it is obvious that the viscosity change of high-viscosity liquid due to temperature changes affects the measurement accuracy. Factors such as the high center of gravity and eccentricity of the float will cause left and right swings during work, and the rapid rotation of the float off-axis in place will affect the measurement accuracy. (At this time, the flow rate is often too large, that is, the float shakes to make the flow area smaller).

Before using the spectrophotometer, the user should first understand the structure and working principle of the spectrophotometer, as well as the functions of each control knob. Before turning on the power, you should check the safety performance of the instrument. The power wiring should be firm, and the power should be good. The initial position of each adjustment knob should be correct and then press the power switch.

A laser level is a kind of level that uses a laser beam instead of manual reading. There are two types of laser levels: special laser level and laser device attached to the level. It can be used for leveling measurement by cooperating with a leveling rod equipped with a photoelectric receiving target. Compared with the optical level, the laser level has the characteristics of high precision, long line of sight and automatic reading and recording.

Thermocouples are a popular component for measuring temperature. Generally, the hot-selling thermocouples have good performance, such as a very wide range of temperature measurements, stable performance, accurate accuracy and no influence of media, etc. So how can we choose the right thermocouple?

A handheld metal detector is an instrument for detecting small metal objects. It can detect all kinds of metal objects hidden in the human body, including jewelry, electrical components, etc. Because of the metal detector's small size, lightweight, and ease to carry, it is widely used as an indispensable tool for personal inspection in security inspections.

Metal tube variable area flow meter is a traditional variable cross-section flow meter, which has many advantages such as simple structure, reliable operation, small and stable pressure loss, and can measure low flow rate media. It is widely used in measuring high temperature, high pressure, and corrosive fluids. medium. As determined by the measurement principle of the metal tube flow meter, it generally needs to be installed vertically. However, in some specific industrial applications, it is necessary to use a horizontally installed rotameter. Although the measurement principle is the same as the classic vertical rotameter, It is a rotameter with a special structure that can be installed in horizontal pipelines.

The air quality monitor is a product that can detect formaldehyde, PM2.5, TVOC and temperature and humidity in real-time. It is small and exquisite and easy to carry. Through its internal sensor, it can accurately measure the concentration of pollutants and calculate the air quality index AQI, and alarm when the concentration exceeds the standard. The principle of the air quality monitor is to detect the signals of the front-end formaldehyde sensor, PM2.5 sensor, TVOC sensor and temperature and humidity sensor, amplify the weak signal of the sensor through the operational amplifier, and remove the noise interference through the filter circuit, then collect it through AD, and use 32-bit high-precision CPU processing and calculation, converted into pollutant concentration values, and displayed on the LCD screen.

The dead zone is the region of time where the tester is temporarily blinded by a large amount of reflected light until it recovers and can read light again. Since the optical time domain reflectometer (OTDR) works by calculating the length of the cable and the point of failure based on time, a large number of reflections will cause the tester to take more time to recover, which creates a dead zone. The limitations of dead zones make optical time domain reflectometers (OTDRs) largely incapable of troubleshooting.

The thermocouple is a commonly used temperature-measuring instrument. It directly measures the temperature, and converts the temperature signal into a thermal electromotive force signal, and converts it into the temperature of the measured medium through an electrical instrument (secondary instrument). The basic structure of thermocouples is roughly the same, usually composed of main parts such as thermal electrodes, insulating sleeve protection tubes and junction boxes, and used in conjunction with display instruments, recording instruments and electronic regulators.