8-Channel Ultrasonic Pulser-Receiver
YUSHI 8-Channel Ultrasonic Pulser and Receiver features fully parallel operation, spike & square wave dual excitation, and cascade expansion up to 16 channels. Ideal for automated batch inspection.
8-Channel Ultrasonic Pulser and Receiver – PR21-8 / PR22-8
The YUSHI 8-Channel Ultrasonic Pulser and Receiver (PR21-8 / PR22-8) is a high-performance, fully parallel multi-channel system designed for advanced NDT applications. It provides independent spike and square wave dual excitation across all 8 channels, allowing simultaneous testing of multiple workpieces. With flexible channel control, cascadable expansion up to 16 channels, and an open SDK, it is the ultimate solution for automated batch inspection and array signal acquisition.
Key Features
Fully Parallel 8-Channels
Independent transmitters & receivers – 8 channels operate simultaneously without cross-talk.
High-throughput – Drastically reduces inspection time for batch workpieces.
Array acquisition – Ideal for multi-element probe arrays.
Expandable – Optional 16-channel configuration.
8 Channels · Fully parallel · Expandable to 16
Dual Excitation & High Voltage
Spike and square wave – 12ns sharp pulse and 20ns~1000ns square wave.
PR21-8 (Max -200V) – For standard NDT applications.
PR22-8 (Max -400V) – For thick or highly attenuative materials.
Wide bandwidth – 800KHz to 26.5MHz receiver.
Spike & Square wave · -200V / -400V options
Flexible Control & Cascading
Multiple modes – Supports Parallel, Serial, and Single Channel modes.
Precise sequencing – 1~1000ms inter-channel delay.
MX8 compatible – Connect with the 8-channel multiplexer.
Max 128 channels – Cascade multiple units for complex systems.
Parallel/Serial modes · MX8 compatible · Up to 128 ch
Smart Software & Open SDK
PC Control – Easily configure batch parameters and save protocols.
Auto switching – Supports fully automatic cyclic switching.
Open SDK – Develop custom applications in C++, C#, or Python.
DAQ integration – Seamless compatibility with AD10/AD25 cards.
PC Software · Open SDK · System Integration
Technical Specifications – PR21-8 / PR22-8
Complete technical parameters for the YUSHI 8-Channel Ultrasonic Pulser and Receiver, including transmitting, receiving, channel control, and interfaces.
Transmitting
| Parameter | PR21-8 Specification | PR22-8 Specification |
|---|---|---|
| Number of Transmitters | 8 | 8 |
| Pulse Type | Spike / Negative Square Wave | Spike / Negative Square Wave |
| Rise Time | 2.5ns ~ 5ns | 2.5ns ~ 10ns |
| Pulse Voltage (No-Load) | Max -200V (8-step): -25V, -50V, -75V, -100V, -125V, -150V, -175V, -200V | Max -400V (8-step): -50V, -100V, -150V, -200V, -250V, -300V, -350V, -400V |
| Pulse Width | Spike Pulse: 12ns; Square Wave: 20ns~1000ns, 5ns Step | |
| Damping | 30Ω, 39Ω, 43Ω, 50Ω, 65Ω, 83Ω, 100Ω, 500Ω | 50Ω, 59Ω, 66Ω, 83Ω, 100Ω, 145Ω, 196Ω, 500Ω |
| Mode | Single Element or Dual Element (Penetration) | |
| Repetition Frequency | Internal: 25Hz~2kHz, 5Hz Step / External: 0~2kHz | |
| Sync Output | 3.3V, TTL Level, 100ns Pulse Width | |
| Trigger Input | 3.3V, TTL Level, Rising Edge | |
Receiving
| Parameter | Specification |
|---|---|
| Number of Receivers | 8 |
| Bandwidth (-3dB) | 800KHz~26.5MHz |
| Gain | 0-60dB, 1dB Step |
| Output | ±5V (Peak-to-Peak) |
Channel Control
| Parameter | Specification |
|---|---|
| Number of Channels | 8 Channels (16 Channels Optional) |
| Channel Mode | Parallel, Serial, Single Channel |
| Triggering Cycle | 10~10000ms (10ms Step) |
| Inter-Channel Delay | 1-1000ms (1ms Step) |
Interfaces & General Specifications
| Parameter | Specification |
|---|---|
| Pulse Transmission/Reception | BNC × 8 |
| Signal Output & Sync Trigger | BNC × 8 (Signal) / BNC × 8 (Sync) |
| Communication | USB Type-B |
| Power Supply | 5V 8A DC5.5-2.5 |
| Operating Temperature | 0~55°C |
| Dimensions | 33.1cm × 25.6cm × 14.2cm |
| Weight | 3350g |
Applications of 8-Channel System
The fully parallel 8-channel architecture of the PR21-8 / PR22-8 revolutionizes throughput and flexibility in ultrasonic testing. It is designed to handle complex, multi-point, or automated inspection scenarios that single-channel systems cannot efficiently manage.
Automated Batch Inspection
By connecting multiple probes to a single unit, operators can simultaneously inspect multiple workpieces or multiple points on a single large workpiece. This massively reduces scanning time and eliminates the need for mechanical switching in high-volume production lines.
High-throughput · Multiple workpieces · Reduced scan time
Array Signal Acquisition
The system supports parallel, serial, and single-channel modes with precise inter-channel delays. This makes it highly suitable for acquiring signals from multi-element ultrasonic arrays, phased arrays, or complex sensor matrices for advanced material characterization.
Multi-element arrays · Precise delay control · Signal routing
Cascadable System Integration
Equipped with dedicated cascade interfaces, multiple units can be linked together to expand up to 128 channels. When paired with the MX8 multiplexer, it allows users to build fully customized, highly complex ultrasonic inspection systems tailored to specific industrial requirements.
Up to 128 channels · MX8 multiplexer · Custom systems
Multi-Point Corrosion Monitoring
Ideal for long-term structural health monitoring. The 8 independent channels can be permanently installed at different critical points on pipelines or pressure vessels, providing continuous, real-time thickness data without manual probe repositioning.
Continuous monitoring · Pipelines · Structural health
Standard Package & Optional Accessories
The 8-Channel system is delivered as a complete, ready-to-use solution. Optional accessories are available to further expand its capabilities for multiplexing and high-speed data acquisition.
Standard Package
8-Channel Main Unit × 1
5V 8A Power Adapter × 1
16 × BNC to BNC Cables
USB Type-B Data Cable × 1
USB Flash Drive × 1 (Software + SDK)
User Manual × 1
Carrying Case × 1
Optional Accessories
MX8 8-Channel Multiplexer
AD10 / AD25 Digital Data Acquisition Card
Ultrasonic Probes (Single/Dual Element)
Measurement & Analysis Software
