The cost-effective tool for real-time NVH diagnosis
Includes both a 3-axis accelerometer and a microphone
Full screen, high-resolution results are presented clearly and accurately
No external memory required – saves directly to laptop or PC
Record up to 500 seconds of data
Detects multiple vehicle vibrations
Customer report function
Plugs into your Automotive PicoScope® (sold separately)
Please note: The NVH kit from Pico Technology only works with our Automotive PicoScopes, and requires an unlock key in order to allow your PicoScope to work with the NVH software. Once you receive your NVH kit, please follow the instructions within the kit to obtain your unique key. This unlock key is limited to one PicoScope Automotive scope and is not transferable. Supported PicoScope models are 4425, 4225, 4423, 4223. RPM data may be taken from a J2534 Scan Tool or VCI (not included).
The PicoDiagnostics NVH Kit from Pico Technology is the cost-effective answer to the many NVH problems facing technicians today. Providing real-time diagnosis to the technician in the form of either: a bar graph, a frequency chart, a 3D frequency chart, RPM order or road speed view. The ability to start the recording before a road test, and play back the recording for analysis on your return, ensures that driver attention remains on the road. Saving the recordings couldn’t be simpler: much like our other automotive software you simply save the file to your laptop’s hard drive.
The PicoDiagnostics NVH kit makes use of the PicoScope 4000 Series Automotive oscilloscope, and comes complete with everything you need (J2534 Scan Tool or VCI not supplied). You can be sure that your investment in the PicoDiagnostics NVH kit will benefit your business without the need for further spending. If you already have a PicoScope 4000 Series Automotive oscilloscope, you’re halfway there.
What’s in the pack?
The NVH interface unit connects to your Automotive PicoScope (sold separately) via a BNC cable, and the PicoScope is connected by USB to a PC or laptop running the PicoDiagnostics software. A separate J2534 Scan Tool or VCI (not supplied) can be used to provide RPM data.
Your PicoDiagnostics NVH Kit contains the following items:
TA259 3-output NVH interface unit
TA096 Mounting magnet for accelerometer
TA143 MEMS accelerometer
TA243 Cable: insulated BNC to BNC 0.5 m blue
TA244 Cable: insulated BNC to BNC 0.5 m red
TA245 Cable: insulated BNC to BNC 0.5 m green
TA144 Microphone for NVH kit
TA145 Sensor extension cable for NVH interface unit
105 mm x 65 mm x 27 mm
43 mm x ø17 mm
12 mm x ø18 mm
Sensor extension lead length
Battery (lithium primary cell)
CR123(A) 3 V (user-replaceable)
Battery life (shelf / vibration mode / microphone mode)
10 years / 6 months / 2 months
Maximum measurable acceleration
Vibration frequency range (3 dB)
DC to 350 Hz
Shock survivability (accelerometer head)
10 000 g
Temperature range (operating)
–40 °C to 85 °C
Thread mounting (accelerometer)
¼” x 28 UNF
45 mV/Pa, nominal, at 1 kHz
CE: Meets EN61326-1:2006
Customer complaints surrounding noise/vibration are subjective at best and present technicians with a challenge before diagnosis and rectification begins. Applying the NVH kit to the vehicle will allow the technician to road-test the vehicle with the customer to obtain all vibration and noise levels. Once this valuable data has been collected it can be analysed and compared to previous captures or against donor vehicles. Often what is perceived by the customer to be a "problem" vibration is in fact a characteristic. Now you can present and compare objective data with test results from donor vehicles to reassure your customer that all is well. Alternatively, comparing data may highlight a problem within the vehicle allowing the technician to proceed to a repair with confidence supported by measurements taken. Below are just a few of the typical scenarios where the NVH kit can save time and money:
Cabin vibrations at speed
Engine vibrations throughout the entire rev range
Transmission and bearing whine
Auxiliary drive noise
Noise, Vibration and Harshness
A MK5 VW Golf 2.0 TDI with a distinct vibration throughout the cabin at a very specific road speed range of 67- 73 mph, presented a real nuisance at cruising speed. This problem resulted in the customer driving at 65 or 75 mph to avoid the vibration.
NVH Cabin Vibration
The trouble with vibrations is that we all interpret them differently (which is why we should measure and not guess), but with this vehicle you could not deny a considerable vibration throughout the vehicle in a very specific engine speed range. Starting at 1450 rpm through to 1700 rpm the vibration was evident, with peak vibration occurring around 1600 rpm.