User’s Manual of CLW-3/3A Intelligent Ultrasonic Level Meter
Preface
Wuxi Bibo Electronic Equipment Plant situated at the foot of Huishan Hill near the bank of
Taihu Lake is an enterprise specialized in research, design and manufacture of hi-tech
products.
For many years the plant has engaged in development and production of electronic
instruments for ultrasonic measurements etc. It has a team of middle-level and senior
technical personnel with strong theoretical knowledge, rich design experiences and
excellent management capabilities in this field and a force of well-trained staff members.
With this vigorous manpower the plant has successfully applied the military-use sonar
technique to ultrasonic measuring scope.
CLW series intelligent ultrasonic level meter is a computerized measuring instrument
integrating optical, acoustic, electronic and microelectronic techniques. The products are
mainly used for measuring level of material in bin in the fields of metallurgy, coal mines,
power generation, cements, fertile, etc. CLW series is capable of measuring level of solids
like raw coal, sintered materials, green stock, finished materials, etc; powdery materials like
coal powder, lime, fertile, cement, etc; water level of water treatment system in water supply
plant and levels of corrosive liquids. For their strong adaptability to various deteriorate
environments and great significance in energy saving, reduction of consumption,
enhancing product quality and lessening operator’s labor intensity the products become the
essential equipment in industrial automation.
Ultrasonic sensor (transducer) as the core element in level meter firstly adopts in design the
high-strength and high-reliable longitudinal vibrator as its drive source in the country and
uses broad-band round radiating plate with high-order bending vibration mode as its
radiating surface. The features of lower quality factor, sharp directivity, even low lobes,
higher electroacoustic transformation, higher adaptability to deteriorate environment and
the like make the ultrasonic level meters hold the leading position in China. In order to
follow expansion of applications and meet different customer requirements the plant
pushes different-sized air horning transducers of high-temperature, anticorrosion and short
blind area versions.
Its technical personnel have developed and designed the system by digesting and
absorbing advanced technique of foreign products of the same kind and according to
China’s actual conditions. Digital filter, optoelectronic isolation, statistical analysis, analysis
of curves, range gate tracking techniques, etc are employed to effectively suppress
