Description
The NI-9235 is a high-precision analog input module designed for use in C Series platforms, featuring a part number 785995-01. This module stands out in its category by offering an impressive configuration designed for a wide array of applications, particularly those requiring the measurement of quarter-bridge strain gages. The NI-9235 is equipped with 8 channels, each capable of a sample rate of 10 kS/s, ensuring timely and accurate data acquisition.
One of the key specifications of this module is its input range of ±29.4 mV/V, which allows for the measurement of signals from various sources with high precision. It is specifically designed for the measurement type of 120 Ω Quarter-Bridge Strain Gage, making it an ideal choice for structural testing, material stress analysis, and a variety of engineering applications requiring precise strain measurements.
Regarding safety and reliability, the NI-9235 offers robust protection and isolation features. It provides up to 60 VDC continuous and 1,000 Vrms transient isolation, ensuring the module’s protection against high voltage spikes and maintaining the integrity of the data. Additionally, it features overvoltage protection of ±30 V between any two terminals, safeguarding the hardware from unexpected voltage increases.
The module also includes an excitation supply to all eight channels at minimum resistance, facilitating the measurement process by providing the necessary power for the sensors. Each channel is equipped with an independent, 24-bit ADC and input amplifier, ensuring high-resolution measurements free from noise and interference. Furthermore, the module operates in isolation from earth ground, which enhances its ability to provide accurate and reliable data in various environments.
However, it is essential to note that there is no isolation between channels; they share a common excitation supply. This design choice is critical for applications where simultaneous measurements with shared conditions are necessary. Additionally, the NI-9235 supports software-enabled shunt calibration, offering a convenient method for verifying the accuracy of measurements and ensuring the module’s performance over time.
In conclusion, the NI-9235 is a versatile and high-performance
| Specification | Detail |
|---|---|
| Part Number | 785995-01 |
| Category | C Series Analog Input |
| Model | NI-9235 |
| Description | NI 9235 120ohm, 8-Ch, 24-Bit, 1/4 Bridge Input Module |
| Channels | 8 |
| Sample Rate | 10 kS/s/channel |
| Input Range | ±29.4 mV/V |
| Measurement Type | 120 Ω Quarter-Bridge Strain Gage |
| Isolation | Up to 60 VDC continuous, 1,000 Vrms transient |
| Overvoltage Protection | ±30 V between any two terminals |
| Excitation Supply | Yes, to all eight channels at minimum resistance |
| ADC and Input Amplifier | Independent, 24-bit per channel |
| Ground Isolation | Operates in isolation from earth ground |
| Channel Isolation | No isolation between channels; common excitation supply |
| Shunt Calibration | Software-enabled switch with precision
Question 1: What is the part number for NI-9235? Question 2: How many channels does the NI-9235 have? Question 3: What is the sample rate of each NI-9235 channel? Question 4: What input range does the NI-9235 support? Question 5: Does the NI-9235 offer channel isolation? |
