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Why Upgrade Your VR8500 Controller?

Vibration Control

Vibration Research introduced the VR9500 vibration controller as the next revolution in vibration control hardware. It is an industry-leading system that builds upon the capabilities of its predecessor—the VR8500.

VR8500 Vibration Controller

VR8500 controller.

Compared to the VR8500, the VR9500 offers better control, greater efficiency, and more testing abilities. Additionally, the VR8500 does not support any software version past 2016. If you are using a VR8500 and are interested in expanding your testing capabilities, the VR9500 is a significant upgrade.

VR also offers the VR10500: a higher channel count system comparable to the VR9500. The VR10500 was designed to coordinate with high-channel-count and multi-shaker systems.

Why Upgrade?

VR8500 VR9500 VR10500
Hardware Warranty

No

Lifetime

Lifetime

Processor

RISC Processor

Dual High-Speed RISC Processor

Dual High-Speed RISC Processor

Lines of resolution

13,000

26,000

26,000

Max control frequency for Sine

0.1 to 20,000Hz

0.1 to 50,000Hz

0.1 to 50,000Hz

Max control frequency for Random

0.5 to 20,000Hz

0.5 to 50,000Hz

0.5 to 50,000Hz

Sample frequency

Up to 52,000Hz

Up to 200,000Hz

Up to 256,000Hz

Narrow spectral bands with Random-on-Random

Up to 12

Up to 32

Up to 32

True floating-point sine tones with Sine-on-Random

Up to 12

Up to 32

Up to 32

Sine includes COLA and notching

No

Yes

Yes

Random includes notching

No

Yes

Yes

Dynamic range

>120dB

>130dB

>130dB

Light indicators on hardware show sensor connection

No

Yes

Yes

Self calibration

No

Yes

Yes

Ethernet connection speed

100Kps

1,000Kps (Gigabit)

1,000Kps (Gigabit)

Noise floor

Not applicable

<70nV/sqrt{Hz}

<70nV/sqrt{Hz}

Clock synchronization

No

Yes

Yes

Multi-axis testing ability

Yes
(Random, FDR, SRS)

Yes
(Random, FDR, SRS, and more)

Yes
(Random, FDR, SRS, and more)

Control

The VR9500/VR10500 offers the ability to achieve the frequency resolution required for your test. It comes standard with 50 to 26,000 lines of resolution, which is twice that of the VR8500 (13,000 lines max). Higher lines of resolution are advantageous for low-frequency control, as the control roll-off is much sharper. They also excite resonances more accurately.

You can extend the frequency range for Sine and Random to 50,000Hz with the VR9203 High-Frequency option without sacrificing resolution (up to 20,000Hz for the VR8500).

The VR9500/VR10500’s sample frequency also reaches up to 200,000Hz, compared to 52,000Hz for the VR8500. A higher sample rate acquires more data in the same timeframe and forms a better representation of the input signal.

Noise Floor and Dynamic Range

Background noise from digital circuits contributes to a controller’s noise floor. The noise floor can conceal important resonances if its acceleration levels are close to the resonance. The VR9500/VR10500 has a low noise floor of <70nV/sqrt{Hz}. The VR8500 does not take the noise floor into account.

Noise floor also helps to make up a controller’s dynamic range. This value represents the range of voltage that you can properly control during a test. Test equipment such as vibration controllers can never have too high of a dynamic range. The dynamic range of VR controllers was increased from >120dB with the VR8500 to >130dB with the VR9500/VR10500.

low noise floor graphic

Efficiency

The VR9500/VR10500 has a dual high-speed RISC processor and an internet connection speed of 1,000Kps (Gigabit) compared to the VR8500’s 100Kps. It also includes features that improve the efficiency of a test setup and vibration control, including lights on the hardware to indicate sensor connection and clock synchronization.

Self-Calibration

Connecting a VR9500 to a Digital Multimeter as part of calibration verification

The VR9500/VR10500 can also perform self-calibration. Calibration ensures that your measurements are accurate within the specification limits. It should be performed once a year for proper maintenance.

While the VR team is glad to evaluate your controller yearly, you can also perform calibration in-house with the VibrationVIEW software. The Automated Calibration Verification software automates the verification process to avoid downtime in the lab. Conversely, the VR8500 must be mailed to VR each year for calibration. View the VR calibration options.

Capability

Compared to the VR8500, the VR9500/VR10500 provides more options for mixed-mode testing, notching, multi-axis testing.

Mixed-Mode

Mixed-mode vibration testing simulates complex field environments, where the vibration environment is not purely random or sinusoidal but a combination of vibration modes.

A random-on-random test profile includes random background and narrow-band signals. The narrow-band signals can be swept or fixed frequency and are superimposed on the base random energy profile. With the VR9500/VR10500, you can define up to 32 narrow spectral bands to superimpose (the VR8500 supports up to 12).

Similarly, a sine-on-random test profile includes sinusoidal vibration superimposed on a random background. The VR9500/VR10500 also supports up to 32 floating-point precision sine tones.

Sine on Random test

Sine-on-random test profile.

Notching

The Sine and Random test modes include a notching option not supported by the VR8500. This feature allows you to notch a response channel to a user-defined value or abort the test above a maximum level. Notching helps protect your product by monitoring acceleration levels and limiting the drive signal where large resonances are present.

Multi-Axis

The VR9500/VR10500 supports more multi-shaker configurations than the VR8500, including dual-axis and triaxial control.

Make the Switch

VR9500 and VR10500 Vibration Controllers

Vibration Research offers a lifetime hardware warranty on the VR9500/VR10500 with a continuous U&SA agreement. The first three years of the agreement are included with your purchase.

If you are interested in trading in your VR8500 controller for a VR9500/VR10500, please contact your sales representative to get started.

Video: VR Product Offerings

VR Product Offerings thumbnail

VR Product Offerings

Date

July 13, 2021

Author

Cherie Stoll

Category

Vibration Control

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