Sensor guides
Plain answers to the questions engineers ask before choosing a sensor.
How ultrasonic distance sensors work
Time of flight, blind zone, beam angle and temperature compensation: what decides the range and accuracy of an ultrasonic sensor.
5 min readUltrasonic, laser or radar: choosing a distance sensor
A side-by-side comparison of ultrasonic, laser time-of-flight and mmWave radar sensors by range, beam, targets, environment and cost.
4 min readHow to choose a pressure transmitter
Pressure type, range, accuracy, output, process connection and materials: a checklist for specifying an industrial pressure transmitter.
6 min readMeasuring tank level with ultrasound, from above or from outside
Top-mounted and externally mounted ultrasonic level sensors compared, with installation tips for water, fuel and waste bins.
5 min readTPMS explained: direct and indirect tyre pressure monitoring
How direct TPMS sensors measure tyre pressure and temperature, how indirect systems infer it, and what to look for in an aftermarket kit.
4 min readUART, PWM, RS485, 4 to 20 mA: choosing a sensor output
What each common sensor output does, cable length limits, and which to choose for a microcontroller, a PLC or a long field cable.
4 min readIP67, IP68, IP69K: what sensor ingress ratings mean
How to read IP codes for sensors, what IP67 and IP68 test, and which rating suits outdoor, underwater and wash-down installations.
3 min read