{"id":32790,"date":"2026-05-13T15:49:38","date_gmt":"2026-05-13T07:49:38","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=32790"},"modified":"2026-08-29T14:49:05","modified_gmt":"2026-08-29T06:49:05","slug":"pxie-4331","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxie-4331\/","title":{"rendered":"PXIe-4331"},"content":{"rendered":"<h3>PXIe-4331 High-Speed Strain and Bridge Input Module<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <strong>PXIe-4331<\/strong> is an 8-channel, 24-bit PXI Express strain and bridge input module designed for dynamic strain, load, force, pressure and torque measurements. It combines high-speed simultaneous sampling with integrated bridge signal conditioning.<\/p>\n<p>All eight channels sample simultaneously at rates up to <strong>102.4 kS\/s per channel<\/strong>. Each channel provides independently programmable excitation, remote sensing, bridge completion, digital filtering and shunt calibration.<\/p>\n<h3>Key Features of the PXIe-4331<\/h3>\n<ul>\n<li>8 simultaneous strain and bridge input channels<\/li>\n<li>24-bit analog input resolution<\/li>\n<li>102.4 kS\/s maximum sampling rate per channel<\/li>\n<li>Dedicated delta-sigma ADC for every channel<\/li>\n<li>Full-, half- and quarter-bridge support<\/li>\n<li>120 \u03a9, 350 \u03a9 and 1 k\u03a9 quarter-bridge completion<\/li>\n<li>Independent programmable excitation per channel<\/li>\n<li>Excitation voltage settings from 0.625 V to 10 V<\/li>\n<li>Remote excitation sensing<\/li>\n<li>Internal and external shunt calibration<\/li>\n<li>Per-channel anti-alias and digital filtering<\/li>\n<li>PXI Express synchronization and high data throughput<\/li>\n<li>NI-DAQmx driver support<\/li>\n<\/ul>\n<h3>PXIe-4331 Technical Specifications<\/h3>\n<table>\n<tbody>\n<tr>\n<th>Product Model<\/th>\n<td>PXIe-4331<\/td>\n<\/tr>\n<tr>\n<th>Part Number<\/th>\n<td>781345-01<\/td>\n<\/tr>\n<tr>\n<th>Product Type<\/th>\n<td>PXI Express Strain and Bridge Input Module<\/td>\n<\/tr>\n<tr>\n<th>Input Channels<\/th>\n<td>8 differential bridge input channels<\/td>\n<\/tr>\n<tr>\n<th>ADC Resolution<\/th>\n<td>24 bit<\/td>\n<\/tr>\n<tr>\n<th>ADC Type<\/th>\n<td>Delta-sigma with analog prefiltering<\/td>\n<\/tr>\n<tr>\n<th>Sampling Mode<\/th>\n<td>\u0421\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b\u0439<\/td>\n<\/tr>\n<tr>\n<th>Maximum Sample Rate<\/th>\n<td>102.4 kS\/s per channel<\/td>\n<\/tr>\n<tr>\n<th>Input Ranges<\/th>\n<td>\u00b125 mV\/V and \u00b1100 mV\/V<\/td>\n<\/tr>\n<tr>\n<th>Bridge Configurations<\/th>\n<td>Full, half and quarter bridge<\/td>\n<\/tr>\n<tr>\n<th>Quarter-Bridge Completion<\/th>\n<td>120 \u03a9, 350 \u03a9 and 1 k\u03a9<\/td>\n<\/tr>\n<tr>\n<th>Excitation Type<\/th>\n<td>Balanced constant differential voltage<\/td>\n<\/tr>\n<tr>\n<th>Excitation Settings<\/th>\n<td>0.625 V, 1 V, 1.5 V, 2 V, 2.5 V, 2.75 V, 3.3 V, 5 V, 7.5 V and 10 V<\/td>\n<\/tr>\n<tr>\n<th>Shunt Calibration Resistors<\/th>\n<td>33.333 k\u03a9, 50 k\u03a9 and 100 k\u03a9<\/td>\n<\/tr>\n<tr>\n<th>Common-Mode Input Range<\/th>\n<td>\u00b12 V<\/td>\n<\/tr>\n<tr>\n<th>Common-Mode Rejection<\/th>\n<td>85 dB, DC to 1 kHz<\/td>\n<\/tr>\n<tr>\n<th>FIFO Buffer<\/th>\n<td>1,023 samples<\/td>\n<\/tr>\n<tr>\n<th>Data Transfers<\/th>\n<td>DMA and programmed I\/O<\/td>\n<\/tr>\n<tr>\n<th>Bus Type<\/th>\n<td>PXI Express<\/td>\n<\/tr>\n<tr>\n<th>Operating Temperature<\/th>\n<td>0\u00b0C to 55\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>PXIe-4331 Part Number and Accessories<\/h3>\n<table>\n<tbody>\n<tr>\n<th>Item<\/th>\n<th>Part Number<\/th>\n<th>\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/th>\n<\/tr>\n<tr>\n<td>PXIe-4331<\/td>\n<td>781345-01<\/td>\n<td>8-channel, 24-bit, 102.4 kS\/s strain and bridge input module<\/td>\n<\/tr>\n<tr>\n<td>TB-4330<\/td>\n<td>781347-01<\/td>\n<td>Front-mount terminal block for PXIe-4330 and PXIe-4331<\/td>\n<\/tr>\n<tr>\n<td>RM-24999<\/td>\n<td>785840-01<\/td>\n<td>Rack-mount terminal block for PXIe-4330 and PXIe-4331<\/td>\n<\/tr>\n<tr>\n<td>SH96F-96M-5<\/td>\n<td>786341-01<\/td>\n<td>1 m shielded cable for connecting the module to RM-24999<\/td>\n<\/tr>\n<tr>\n<td>SH96F-96M-5<\/td>\n<td>786341-03<\/td>\n<td>3 m shielded cable for connecting the module to RM-24999<\/td>\n<\/tr>\n<tr>\n<td>SH96F-96M-5<\/td>\n<td>786341-05<\/td>\n<td>5 m shielded cable for connecting the module to RM-24999<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The TB-4330 mounts directly on the front of the module. The RM-24999 is intended for rack-mounted systems and requires a compatible SH96F-96M-5 shielded cable.<\/p>\n<h3>High-Speed Simultaneous Sampling<\/h3>\n<p>The PXIe-4331 provides a dedicated 24-bit ADC for each input channel. All eight channels can sample simultaneously at rates up to <strong>102.4 kS\/s per channel<\/strong>.<\/p>\n<p>This high sampling rate allows the module to capture rapidly changing strain, impact, vibration-related bridge signals and dynamic mechanical loads while maintaining time alignment across every channel.<\/p>\n<h3>24-Bit Measurement Resolution<\/h3>\n<p>The 24-bit delta-sigma ADC architecture provides the resolution required for low-level bridge outputs. Analog prefiltering and digital filtering help reduce unwanted noise and out-of-band signal components.<\/p>\n<p>The combination of high resolution and high sampling speed makes the PXIe-4331 suitable for both static and dynamic bridge-based measurements.<\/p>\n<h3>Full-, Half- and Quarter-Bridge Support<\/h3>\n<p>The module supports full-, half- and quarter-bridge configurations. Bridge type can be selected independently for each channel using NI-DAQmx or compatible measurement software.<\/p>\n<p>Integrated bridge completion reduces the external components required for quarter- and half-bridge strain gauge measurements.<\/p>\n<h3>Quarter-Bridge Completion<\/h3>\n<p>Internal quarter-bridge completion is available for <strong>120 \u03a9, 350 \u03a9 and 1 k\u03a9<\/strong> strain gauges. The selected completion resistance must match the nominal resistance of the connected gauge.<\/p>\n<p>Incorrect bridge completion can cause large offsets, scaling errors or invalid measurements.<\/p>\n<h3>Programmable Excitation Voltage<\/h3>\n<p>Each PXIe-4331 channel includes an independently programmable balanced excitation source. Available settings include 0.625 V, 1 V, 1.5 V, 2 V, 2.5 V, 2.75 V, 3.3 V, 5 V, 7.5 V and 10 V.<\/p>\n<p>The appropriate excitation voltage depends on the bridge resistance, configuration, sensor power limits and required signal sensitivity.<\/p>\n<h3>Remote Excitation Sensing<\/h3>\n<p>Remote sensing measures the excitation voltage directly at the bridge sensor and compensates for voltage loss in long excitation wires.<\/p>\n<p>This improves measurement accuracy for remotely installed load cells, pressure sensors and strain gauges where cable resistance may otherwise reduce the actual bridge excitation.<\/p>\n<h3>Shunt Calibration<\/h3>\n<p>The PXIe-4331 supports software-selectable internal and external shunt calibration. Available internal shunt resistor values include <strong>33.333 k\u03a9, 50 k\u03a9 and 100 k\u03a9<\/strong>.<\/p>\n<p>Shunt calibration introduces a known electrical imbalance into the bridge. The resulting response can verify the measurement channel, wiring, completion resistance and software scaling.<\/p>\n<h3>Anti-Alias and Digital Filtering<\/h3>\n<p>Each channel includes analog prefiltering and digital anti-alias filtering. These filters reduce high-frequency noise and help prevent out-of-band signals from appearing incorrectly in the measured data.<\/p>\n<p>The effective filter response depends on the selected sampling rate and should be considered when measuring impacts, transients and other dynamic events.<\/p>\n<h3>Dynamic Strain Measurement<\/h3>\n<p>The 102.4 kS\/s sampling rate enables the PXIe-4331 to capture dynamic strain events that may be missed by slower bridge modules. Typical examples include impact tests, vibration-related strain, rapid load changes and structural transients.<\/p>\n<p>Simultaneous sampling maintains the timing relationship between strain gauges installed at different locations on the test structure.<\/p>\n<h3>Load, Force and Pressure Measurements<\/h3>\n<p>Full-bridge load cells, force transducers and bridge-based pressure sensors can be connected directly to the module. Sensor sensitivity values are used to convert the measured mV\/V signal into engineering units.<\/p>\n<p>Remote sensing and shunt calibration help verify measurement accuracy, particularly when sensors are installed at a distance from the PXI system.<\/p>\n<h3>Torque Measurements<\/h3>\n<p>The PXIe-4331 supports bridge-based torque transducers requiring high-speed acquisition. Its simultaneous sampling architecture allows torque data to be correlated with strain, force, position or other synchronized measurements.<\/p>\n<p>Correct excitation, sensitivity, bridge configuration and physical scaling must be entered for accurate torque results.<\/p>\n<h3>\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f<\/h3>\n<ul>\n<li>Dynamic strain measurement<\/li>\n<li>Impact and crash testing<\/li>\n<li>Structural and fatigue testing<\/li>\n<li>Load cell and force measurement<\/li>\n<li>Bridge-based pressure measurement<\/li>\n<li>Torque sensor acquisition<\/li>\n<li>Automotive component validation<\/li>\n<li>Aerospace structural testing<\/li>\n<li>Material and mechanical testing<\/li>\n<li>High-speed production testing<\/li>\n<\/ul>\n<h3>NI-DAQmx Software Support<\/h3>\n<p>The PXIe-4331 is supported by NI-DAQmx, which provides configuration for bridge type, excitation, completion resistance, shunt calibration, sampling, triggering, filtering and engineering-unit scaling.<\/p>\n<p>Applications can be developed with LabVIEW, Python, C, C# and other supported programming environments.<\/p>\n<h3>FlexLogger Integration<\/h3>\n<p>FlexLogger can configure and record strain, load, force, pressure and torque measurements without requiring a complete custom application. Users can define sensor sensitivities, engineering units, sample rates, alarms and logging conditions.<\/p>\n<p>Its interactive workflow is useful for structural validation, mechanical testing and synchronized multichannel data logging.<\/p>\n<h3>PXI Express System Integration<\/h3>\n<p>The PXIe-4331 requires a compatible PXI Express chassis and controller. Multiple modules can be synchronized to create larger dynamic strain and bridge measurement systems.<\/p>\n<p>Visit the <a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/%d0%bc%d0%be%d0%b4%d1%83%d0%bb%d0%b8-pxi\/\">NI PXI Modules category<\/a> to explore related PXI measurement hardware.<\/p>\n<h3>Troubleshooting the PXIe-4331<\/h3>\n<h4>The module is not detected<\/h4>\n<p>Confirm that the PXIe-4331 is installed in a compatible PXI Express slot. Check the chassis controller, PXI Platform Services and NI-DAQmx installation.<\/p>\n<h4>The bridge measurement has a large offset<\/h4>\n<p>Verify the bridge configuration, completion resistance, sensor wiring and initial bridge balance. Inspect the strain gauge or sensor for damage.<\/p>\n<h4>The measured strain has the wrong polarity<\/h4>\n<p>Check the gauge orientation and AI+ and AI\u2212 connections. Correct the wiring or apply the appropriate software scaling direction.<\/p>\n<h4>The excitation voltage is lower than expected<\/h4>\n<p>Confirm that the selected excitation is compatible with the bridge resistance and configuration. Check for excessive cable resistance, sensor loading or a short circuit.<\/p>\n<h4>Dynamic signals appear attenuated<\/h4>\n<p>Review the sampling rate and filter response. Ensure the configured measurement bandwidth is sufficient for the expected signal frequency.<\/p>\n<h4>Shunt calibration produces an unexpected result<\/h4>\n<p>Check the selected shunt resistor, bridge completion, gauge resistance and software scaling. Confirm that all sensor connections are secure.<\/p>\n<h3>PXIe-4331 Comparison<\/h3>\n<table>\n<tbody>\n<tr>\n<th>\u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n<th>\u041a\u0430\u043d\u0430\u043b\u044b<\/th>\n<th>\u0420\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435<\/th>\n<th>Maximum Rate<\/th>\n<th>Primary Use<\/th>\n<\/tr>\n<tr>\n<td>PXIe-4331<\/td>\n<td>8<\/td>\n<td>24 bit<\/td>\n<td>102.4 kS\/s per channel<\/td>\n<td>High-speed dynamic strain measurements<\/td>\n<\/tr>\n<tr>\n<td>PXIe-4330<\/td>\n<td>8<\/td>\n<td>24 bit<\/td>\n<td>25,6 \u0442\u044b\u0441. \u043e\u0442\u0441\u0447\u0435\u0442\u043e\u0432\/\u0441 \u043d\u0430 \u043a\u0430\u043d\u0430\u043b<\/td>\n<td>General bridge and strain measurements<\/td>\n<\/tr>\n<tr>\n<td>PXIe-4339<\/td>\n<td>8<\/td>\n<td>24 bit<\/td>\n<td>25,6 \u0442\u044b\u0441. \u043e\u0442\u0441\u0447\u0435\u0442\u043e\u0432\/\u0441 \u043d\u0430 \u043a\u0430\u043d\u0430\u043b<\/td>\n<td>Strain and bridge measurement systems<\/td>\n<\/tr>\n<tr>\n<td>PXIe-4340<\/td>\n<td>4<\/td>\n<td>24 bit<\/td>\n<td>25,6 \u0442\u044b\u0441. \u043e\u0442\u0441\u0447\u0435\u0442\u043e\u0432\/\u0441 \u043d\u0430 \u043a\u0430\u043d\u0430\u043b<\/td>\n<td>LVDT and RVDT sensor measurements<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Recommended Related Products<\/h3>\n<ul>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-4330\/\">PXIe-4330<\/a> \u2013 8-channel bridge module with a 25.6 kS\/s sampling rate<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-4339\/\">PXIe-4339<\/a> \u2013 8-channel strain and bridge input module with multiple terminal options<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-4340\/\">PXIe-4340<\/a> \u2013 dedicated input module for LVDT and RVDT sensors<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-4468\/\">PXIe-4468<\/a> \u2013 dynamic signal acquisition module for vibration and acoustic measurements<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-1092\/\">PXIe-1092<\/a> \u2013 PXI Express chassis for modular measurement systems<\/li>\n<\/ul>\n<h3>Selecting the PXIe-4331<\/h3>\n<p>Choose the PXIe-4331 when an application requires high-speed simultaneous acquisition of strain gauges, load cells, pressure sensors or torque transducers at rates up to 102.4 kS\/s per channel.<\/p>\n<p>For lower-bandwidth bridge measurements, the PXIe-4330 may provide a more economical solution. For LVDT or RVDT sensors, consider the PXIe-4340.<\/p>\n<h3>PXIe-4331 vs PXIe-4330<\/h3>\n<p>The PXIe-4331 and PXIe-4330 both provide eight simultaneous, 24-bit bridge input channels with programmable excitation, internal bridge completion, remote sensing and shunt calibration.<\/p>\n<p>The primary difference is maximum sampling rate. The PXIe-4331 supports up to <strong>102.4 kS\/s per channel<\/strong>, while the PXIe-4330 supports up to 25.6 kS\/s per channel. The PXIe-4331 is better suited to impact, transient and other dynamic measurements.<\/p>\n<h3>Why Choose the PXIe-4331?<\/h3>\n<ul>\n<li>102.4 kS\/s high-speed sampling on all eight channels<\/li>\n<li>24-bit resolution for low-level bridge signals<\/li>\n<li>Integrated full-, half- and quarter-bridge support<\/li>\n<li>Independent programmable excitation per channel<\/li>\n<li>120 \u03a9, 350 \u03a9 and 1 k\u03a9 bridge completion<\/li>\n<li>Remote sensing for long sensor cables<\/li>\n<li>Internal and external shunt calibration<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the PXIe-4331 used for?<\/h4>\n<p>The PXIe-4331 is used for high-speed measurements from strain gauges, load cells, force sensors, pressure transducers and bridge-based torque sensors.<\/p>\n<h4>How many input channels does it provide?<\/h4>\n<p>The module provides eight simultaneous strain and bridge input channels.<\/p>\n<h4>What is the maximum sampling rate?<\/h4>\n<p>The PXIe-4331 supports sampling rates up to 102.4 kS\/s per channel.<\/p>\n<h4>Which bridge configurations are supported?<\/h4>\n<p>The module supports full-, half- and quarter-bridge configurations.<\/p>\n<h4>Which quarter-bridge resistances are supported?<\/h4>\n<p>Internal completion is available for 120 \u03a9, 350 \u03a9 and 1 k\u03a9 quarter-bridge sensors.<\/p>\n<h4>Does the PXIe-4331 provide sensor excitation?<\/h4>\n<p>Yes. Each channel provides independently programmable balanced excitation from 0.625 V to 10 V.<\/p>\n<h4>Does it support remote sensing and shunt calibration?<\/h4>\n<p>Yes. Each channel supports remote excitation sensing and software-selectable internal or external shunt calibration.<\/p>\n<h4>What is the difference between the PXIe-4331 and PXIe-4330?<\/h4>\n<p>The PXIe-4331 supports 102.4 kS\/s per channel, while the PXIe-4330 supports 25.6 kS\/s per channel. Their principal bridge-conditioning features are otherwise similar.<\/p>\n<h4>What is the PXIe-4331 part number?<\/h4>\n<p>The standard NI part number for the PXIe-4331 is <strong>781345-01<\/strong>.<\/p>\n<h3>Request a Quote for the PXIe-4331<\/h3>\n<p>Contact us for current availability, lead time and project pricing for the <strong>PXIe-4331 High-Speed Strain and Bridge Input Module<\/strong>. We can also help confirm compatible terminal blocks, shielded cables, PXI chassis and related sensor measurement modules.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u0432\u0445\u043e\u0434\u043d\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f: \u043e\u0442 -100 \u043c\u0412\/\u0412 \u0434\u043e 100 \u043c\u0412\/\u0412, \u043e\u0442 -25 \u043c\u0412\/\u0412 \u0434\u043e 25 \u043c\u0412\/\u0412<br \/>\n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u0434\u0438\u0441\u043a\u0440\u0435\u0442\u0438\u0437\u0430\u0446\u0438\u0438: 102,4 \u043a\u0432\u044b\u0431\/\u0441<br \/>\n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0434\u0438\u0444\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432: 8<br \/>\n\u041a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u043c\u043e\u0441\u0442\u0430: -, -, \u2013<br \/>\n\u0421\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043c\u043e\u0441\u0442\u0430: 1000 \u041e\u043c, 120 \u041e\u043c, 350 \u041e\u043c<\/p>","protected":false},"featured_media":32729,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[667],"product_tag":[],"class_list":["post-32790","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-modules","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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