Pico DrDAQ® USB data logger, oscilloscope attachment, data logger, signal generator PP706 PP706 Manual Do Utilizador
Códigos do produto
PP706
USB DrDAQ User's Guide
33
Copyright © 2011 Pico Technology Ltd. All rights reserved.
usbdrdaq.en
Example 3: Measuring 10 volts
Notes:
This is a simple circuit that uses a
potential divider to reduce the voltage
going into the USB DrDAQ by four. R1
= 3k & R2 = 1k The resistors are
calculated using Ohm's Law, V=IR.
potential divider to reduce the voltage
going into the USB DrDAQ by four. R1
= 3k & R2 = 1k The resistors are
calculated using Ohm's Law, V=IR.
Auto-Detect
Auto-detect resistor is placed between Ground (Pin 2) and
Signal Detect (Pin 3). The value of the resistor should be
selected from one of the following common values: 1k0, 2k2,
3k3, 5k6, 7k5, 10k. It is necessary to have an auto-detect
resistor so that the software can automatically scale the input
signal into the property that it represents.
Signal Detect (Pin 3). The value of the resistor should be
selected from one of the following common values: 1k0, 2k2,
3k3, 5k6, 7k5, 10k. It is necessary to have an auto-detect
resistor so that the software can automatically scale the input
signal into the property that it represents.