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Technical Blog Archive

What is a Pressure Transducer?

A pressure transducer converts pressure into an analogue electrical signal. Many of them use internal strain gauges bonded to an internal diaphragm. When pressure is applied through the pressure port, the diaphragm will deflect and the strain gauges will be compressed altering the output signal...

Types of Sensors

Sensors are used throughout almost every industry for applications which we come into contact with on a daily basis as well as more industrial and specialist applications. Sensors can be found in the home, the office, in our cars, buses, trains, trams, computers, medical facilities, labs, power...

What is a Thermocouple?

Thermocouples are part of our product portfolio here at Variohm.  How does a Thermocouple work? A thermocouple is constructed of two different metals joined at both ends. To measure temperature, one end of the thermocouple is exposed to heat, when this happens there is a continuous...

What is a Piezoelectric Sensor?

“Piezo” is Greek for “press” or “squeeze” so a piezoelectric sensor effectively measures compression using the piezoelectric effect.  A piezoelectric sensor converts physical parameters - for example, acceleration, strain or pressure into an electrical...

Submersible Pressure Transducers

Submersible pressure transducers are used to measure liquid level. The transducer is often located at the bottom of a tank, the pressure applied to the transducer will be directly proportional to the amount of liquid, as the tank empties/fills the pressure becomes lower/higher and this is measured...

What is a Position Sensor?

Position sensors are used throughout many industries for applications in motorsport, agriculture, industrial application etc and are also used in devices which surround us such as elevators and moving ramps. Position sensors are even used in the special effects department of...