Float activated switches for opening or closing electrical contacts at a preset fluid level.
Ultrasonic devices for monitoring liquid level and activating the opening and closing of switch contacts at predetermined liquid level thresholds.
Vibrating tuning fork switches for opening or closing electrical contacts at a preset fluid level.
Conductive sensing for detecting when a preset fluid level has been reached.
Capacitance method for measuring the level of a fluid.
Radar method of measuring distance from a solid or liquid.
Ultrasonic method of measuring distance from a solid or liquid.
Positive displacement (PD) volumetric flow rate measurement.
Vortex shedding von Karman effect flow measurement.
Using upstream and downstream ultrasonic transit time difference to measure flow velocity.
Ultrasound acoustic wave fluid flow velocity sensors.
How the Doppler effect acoustic frequency shift principle is used in flow measurement instrumentation.
Resistive strain gauge device.
Thin film deposition surface layer.
Turbine rotor blade and motion sensor for measuring speed of a substance.
Paddle wheel impeller and magnetic pickup sensor.
Piezoresistive strain gauges are a semiconductor material which changes in resistance when the material stretched or compressed.
Wheatstone bridge strain gauge circuits are used extensively inside transducer to convert a mechanical strain into an electrical output signal.
Silicon on Insulator (SOI) is a type of material technology which can be utilised in the manufacture of pressure sensor diaphragms to allow operation at higher temperatures.
The Linear Variable Differential Transformer (LVDT) is a type of sensor which converts linear displacement into an variable electrical signal.
Ceramic pressure sensors are devices which have sensing diaphragms made from Alumina (Al2O3) with either a screen printed thick film strain gauge circuit or a variable capacitance cell. Ceramic diaphragms are very inert and provide a high level of protection from aggressive chemicals.
Bourdon Tube is a flattened length of thin hollow metal tubing which is formed into a C shape.
Bonded foil strain gauges (BFSG) are metal based foil elements that are incorporated into a flexible electrically insulating material which can then be bonded to a surface with adhesives. As stress is applied to the material, the BFSG will deform and the resistance changes. If a voltage is applied across the BFSG it can be […]