4-channel strain gauge amplifier board, high-precision strain gauge transmitter 0-30V adjustable

1. Exclusively designed high stability circuit. Using a dedicated voltage regulator chip, 0-30V adjustable, with a mid-power transistor, 1.5A maximum output, with current limiting protection, to provide a guarantee for high-quality and low-noise excitation sources; (most of the amplifier boards in the market do not really consider eliminating power noise , If the noise is too large, it will be brought into the amplifier, thereby amplifying the noise, and the output signal will inevitably be doped with the noise)

2. Use high-quality aluminum chip electrolytic capacitors and Samsung original capacitors to minimize power supply ripple;

3. Four pieces are used for the enlarged partLow noise, non-chopping and stable bipolar(Dual power supply)Operational amplifier integrated circuit OP07C, itsInput bias current, low offset voltage drift, stabilization time and other indicators are beyond the amplifier board built with LM358 on the market;

4. This amplifier board is equipped with a dual power conversion chip, which fully utilizes the excellent performance of OP07 and increases the accuracy of the signal; while many amplifier boards on the market are powered by a single power supply, which undoubtedly reduces the performance of the amplifier and AD

5.Each channel has RC filter, you can choose to use RC filter or not to use RC filter

Wiring definition:

JP1 is the power interface, the voltage range is 5-10V

JP3 is the excitation source output (four channels)

JP4 is four-channel signal input, (A+ and A- are channel 1)

JP2 is the amplified signal output, (S1 is the first channel output, FS1 is the voltage output after the RC filter)

(Note: The green and white lines in the figure are theoretically not positive or negative. If the customer has negative voltage or insensitivity, please reverse these two lines and try again!)

The output can be connected to the AD analog-to-digital conversion, which supports a variety of AD acquisition schemes, such as STM32, 51 and other acquisition schemes.

The host computer program developed by our shop:

(Picture: Various customizable software, can display multi-channel data at the same time, can perform slope, drift calibration, maximum value and other algorithms, and can save data)

Magnification board parameters:

Shipping?List:Amplifying board*1