Article List
- Inspection process of qualified piezo buzzer elementPiezo bender element has small size, no contact, no noise, high reliability, low power consumption, low cost and good frequency characteristics. Therefore, piezoelectric buzzer element is widely used for alarm and vocal use of various electrical products. The most common ones are sounding devices onBasics of Piezoelectric Ceramics July 12, 2019
- Piezoelectric sensor application1.One-way Piezoelectric sensor The structure of the piezoelectric ceramic cylinder is usually a load washer type. The figure shows a one-way piezoelectric sensor structure, which is composed of a base, a force transmitting upper cover, a chip electrode, a quartz wafer, an insulating memberBasics of Piezoelectric Ceramics July 02, 2019
- Types of piezoelectric ceramicsBarium titanate piezoelectric ceramics Barium titanate (BaTiO3) has a high dielectric constant and a large piezoelectric coefficient (about 50 times that of a quartz crystal). The disadvantage is that the curie temperature is low (120 ° C), temperature stability and mechanical strength are nBasics of Piezoelectric Ceramics July 02, 2019
- Piezoelectric effect of piezoelectric ceramicsWhen the piezoelectric ceramic is polarized, there is a strong residual field polarization inside the ceramic material. When the ceramic material is subjected to an external force, the boundary of the domain moves is causing a change in the polarization intensity and resulting a piezoelectric effectBasics of Piezoelectric Ceramics July 01, 2019
- What’s piezoelectric sensor?What’s piezoelectric sensor The piezoelectric ultrasonic sensor is based on the piezoelectric effect of some dielectric materials, and generates an electric charge on the surface of the dielectric under the action of an external force, thereby realizing non-electricity measurement. A piezoelectric sBasics of Piezoelectric Ceramics July 01, 2019
- Measurement of thickness of nickel plating on iron-based and non-ferrous substratesThe development of electroless nickel-based alloy technology on non-ferrous substrates in the past decade, especially the electroless nickel treatment technology of light metal aluminum, magnesium, titanium and their alloys, as well as the treatment technology of plastic parts,it is found that pretrThickness Gauge information June 26, 2019
- What’s the detection methods for coating thickness measurement(1)Coating thickness gauge is an important process parameter and plays an important role in the product quality, process control and cost control. Now, technicians can use many different kinds of instruments and methods to measure the thickness of a coating or film. There are many factors to consider wThickness Gauge information June 04, 2019
- Measuring principle and method of coating thickness gaugePrinciple of magnetic attraction force measurementThe amount of suction between the permanent magnet (probe) and the magnetically permeable steel is proportional to the distance between the two, which is the thickness of the coating. Using this principle to make a thickness gauge, measurement can beThickness Gauge information May 30, 2019
- Precautions of ultrasonic thickness gauge measurement (2)Several methods in measurement1—Single measurement method: measurement at one point2—Double measurement method: Perform two measurements with a probe at one point. The probe crosstalk spacers should be perpendicular to each other in both measurements. Selecting the minimum value in the reading as thThickness Gauge information May 27, 2019
- The time controls of the coating by the use of the coating thickness gaugeThe electronic coating thickness gauge can non-destructively measure the thickness of non-magnetic coatings on magnetic metal substrates (such as steel, iron, alloys and hard magnetic steel) (such as aluminum, chromium, copper, tantalum, rubber, paint, etc.) and non-magnetic The thickness of a non-cThickness Gauge information June 12, 2019