Checkpoint LAB USB-RS232 Manuel d'utilisateur télécharger pdf (Page 4)

TEMPERATURE PROBES, THERMOCOUPLES,

THERMISTOR

Thermo monitoring:

• One and 70 microvolts per degree Celsius (µV/°C) for

standard metal combinations, air, gas surface.

• Low current, high impedance circuit needed.

• Tip types beaded, probe clip

• Review manufacture’s specifications

SONAR

(SOUND NAVIGATION AND RANGING)

Acoustic Device for measuring gases (i.e. air) and water.

Robotics; typically used to measure distance from a few inches to

several meters.

Overview: Periodic send are receive cycles. Starts with a transmitted

ultrasound ping, then waits for its echo. Calculates sound propagation.

It’s that simple!

• Most sonars have internal electronics that translates the time

propagation into a representative voltage level.

• Electrical Interface: This may be an analog value or digital via a serial

interface.

• Environmental concerns: Whale activists accuse US navy submarines

to beach whales during practice events…

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Checkpoint LAB USB-RS232 Manuel d'utilisateur Page 4