(1) The non-legality of calibration is the voluntary traceability of an enterprise; the verification has a legal nature and is a law enforcement activity in the field of measurement management.

(2) The calibration mainly determines the indication error of the measuring instrument; the…

1 V cone flowmeter and its working principle

The inner cone flowmeter originates from McCrometer of USA, because its throttling part is conical, the English name is V-Cone Flowmeter; After introducing the country, it is called the inner cone flowmeter (see Figure 1).

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Rainy days can be considered as a “roaming” for tanker trucks. Driving a tanker truck on rainy days is also more likely to cause vehicle breakdown. Therefore, tanke…

As we all know, cars will generate certain harmful gases during the driving process, which will have a certain impact on people sitting in the car. Therefore, activated carbon is very important. Here are some of the car…

In order to enable vehicles to get in and out of the parking lot in an orderly manner, to create a good parking environment for people, generally there is a parking lot management system at the entrance and exit of the vehicle, which serves as a car and a vehicle to achieve self-help, speed, a…

There are many kinds of trolley wires, including safe trolley wire, single-pole combined trolley wire, multi-tubular trolley wire, seamless trolley wire, steel trolley wire, and many buyers purchase. The conditions of the system itself and the characteristics of the trolley line are used to se…

First, the system consists of

The vehicle number identification system consists of transmitting the front-end vehicle number identification signal to the back-end IPC through Ethernet and then accessing the server via the server. The train arrival trigger system and …

According to the data on the vehicle terminal of the Vehicle Administration Bureau of the Ministry of Public Security, in 2015 China's water trucks sold a total of 7,692 vehicles, an increase of -7.09% over the same period last year (8,279 vehicles). Medium-sized…

Introduction

Electronic differential lock English called ElectronicDifferentialSystem, it is an extended function of ABS, used to identify whether the car's wheels lose their…

Women are a unique group. Urban women are a more unique category of women. They shuttle in the busy city, cope with all kinds of entertainment, all kinds of hard work, a shor…

The expansion section is also called expansion joint, temperature compensator, and temperature compensation device. It is a linear deformation (line extrusion extrusion) produced when the trolley wire is heated and expanded according to the conditions under which the trolley wire is operated i…

Intelligent electromagnetic flowmeter will produce some faults in the process of use, which will affect the normal operation of the instrument. How to find the reason behind the fault is a very important task. We need to identify through various types of detection methods. Under normal circums…