Cavity Pressure Sensors Ideal for Monitoring During Injection Molding Process

Meusburger offers sensors for cavity pressure measurement, which includes two types for direct and indirect measurement. Cavity pressure sensors make it possible to convert the pressure in the cavity to a measurable charge. The sensors are equipped with high-precision quartz crystals, which release a charge under the influence of pressure or force. This charge, amplified by a charge amplifier, provides precise information about the pressure applied to the sensor and makes it possible to monitor the exact cavity pressure in the injection molding process. The ideal installation position in the mold depends on the application. For example, for general monitoring and process optimization, the sensor is placed as close as possible to the sprue or on a thicker section of the molded part. Other typical applications are strength monitoring and monitoring or controlling viscosity, compression or shrinkage.

Depending on the application, there are two types of pressure sensors: direct and indirect sensors, which serve for direct or indirect pressure measurement. For direct measurement, the pressure sensor is inserted directly into the cavity so the pressure can be measured directly in the respective area. The indirect measurement of the cavity pressure is carried out via a force sensor which is located outside the cavity and is indirectly actuated by a force. Unlike direct sensors, the cavity pressure is transmitted to the sensor as a force via an ejector pin.

The sensors are available from stock with simple CAD data download from the company web shop and are compatible with all piezoelectric pressure sensors, as well as their components, which are currently available on the market. The sensors are available with suitable mounting accessories and connection cables.