Most of the modern new instruments are imported, especially the level instruments used by large enterprises are basically imported instruments, and even pressure or differential pressure ultrasonic level gauges use imported or joint venture pressure or differential pressure transmitters. Therefore, developing and producing advanced level instruments is still the key to occupying the domestic Level Instrument market.

The market trend of level switch

The level switch is a large quantity and low value product, which can be divided into liquid level switch and material level switch. At present, the leading product of the liquid level switch is still the float type liquid level switch, followed by the tuning fork type and the capacitive type liquid level switch. This trend will not change much in the future for a long time. However, with the improvement of enterprise management level, not only the price of the instrument itself is required to be low, but also the installation is simple, the reliability is high, and the maintenance is small. Therefore, the market share of RF admittance (capacitive) and ultrasonic level switches will continue to increase. Because the radio frequency admittance level switch is simple to install, has no moving parts, high reliability, small maintenance, and is superior to the float switch in terms of pressure resistance and corrosion resistance. The ultrasonic level switch is a non-contact measurement, and its advantages are obvious. With the continuous reduction of its own manufacturing price, it will also occupy a considerable share of the market.

The market trend of Ultrasonic Level Gauge

The applications of ultrasonic level gauges are very different, so there are many kinds.

In the production process, the detection of the liquid level of various towers and kettles is still mainly based on pressure and differential pressure transmitters. In addition to its own cost-effectiveness, this has certain advantages, as well as the habit of design and application. Followed by magnetic float type, float type, capacitive ultrasonic liquid level gauge also has a considerable amount of application. With the development of technology, the amount of magnetostrictive, ultrasonic and radio frequency admittance ultrasonic level gauges will increase rapidly, and the proportion of pressure (differential pressure) ultrasonic level gauges will decrease. According to the different media and site conditions, various ultrasonic level gauges will exhibit their advantages and will form a diversified situation.

Due to its large volume, the storage tank in the tank area requires high precision of the ultrasonic level gauge. In the past, most of the float steel belt type ultrasonic level gauges were used, and the servo type and static pressure type also have a certain amount of application. However, whether it is a float steel belt type, a servo type or a static pressure type ultrasonic level gauge, it is not the best way to measure the liquid level of the storage tank in the tank area. The float steel belt ultrasonic level gauge is complicated to install and has low reliability; the static pressure ultrasonic level gauge is greatly affected by the density and temperature of the medium. In order to eliminate these influences, a complete static pressure measurement system is also expensive. ; Servo ultrasonic level gauge has high precision, but due to its mechanical transmission mechanism, it will inevitably bring about wear problems, and the price is also high. Since the 1990s, the radar ultrasonic level gauge has entered the market. Due to its high precision, high reliability and easy use, the amount used in the tank farm has increased rapidly, and it has become the first choice for tank farm level instruments in the past decade. In recent years, magnetostrictive ultrasonic liquid level gauges have sprung up. Due to their high precision, high stability, high reliability and long life, they are more suitable for liquid level measurement in tank areas. Type ultrasonic level gauges are equally divided. The fiber-optic ultrasonic level gauge can perform on-site non-electric detection and has good safety. This is its outstanding advantage. The disadvantage is that there are still many mechanical transmission parts, the failure rate will increase, and the installation will be more complicated. Ultrasonic level meters are slightly less accurate, but their installation is simple and affordable, so they will also have a place in the tank farm.