Family Type 8766A are miniature accelerometers (250 … 2000 g) which measure simultaneous shock and vibration in three orthogonal axes.
- The Kistler 8766A is a miniature IEPE triaxial accelerometer that measures simultaneous shock and vibration in three orthogonal axes from ±250 to ±2,000 g. Its PiezoStar shear element gives very low sensitivity to temperature change and a wide operating frequency range. A high-temperature option extends operation to 330 °F (165 °C), and an IP68 integral cable supports waterproof testing to 16 bar.
Four ranges: ±250, ±500, ±1,000, and ±2,000 g
PiezoStar shear element: very low sensitivity variation over temperature
Frequency response: up to 12,000 Hz (±5%) and 20,000 Hz (±10%) on the 1,000 and 2,000 g ranges
Low mass: 3.6 … 4.4 g depending on range and connector
Connector options: M4.5 4-pin, 1/4-28 4-pin, or IP68 integral cable
Long-term stability: ±1%
What it is used for
Some of the use cases for the 8766A include:
Structural analysis — small components and subsystems
Full vehicle testing — aviation, space, and automotive
Operational testing — under dynamic test conditions and at higher operating temperatures
Main features / advantages
With PiezoStar element for very low temperature sensitivity
Miniature, low mass
Mini and standard, 4-pin connector options
±250, 500, 1000, and 2000 g measuring ranges
High temperature option (+165°C [+330°F])
Water-resistant IP68 (up to 16 bars) option available
What does the 8766A measure?
The 8766A family are miniature accelerometers (250 … 2,000 g) that measure simultaneous shock and vibration in three orthogonal axes.
Family Type 8766A are IEPE triaxial accelerometers designed for high temperature applications. These accelerometers feature Kistler’s PiezoStar shear element design, which provides a wide operating frequency range and extremely low sensitivity to temperature changes. The IEPE sensor combines PiezoStar crystals and high gain integral hybrid microelectronics to achieve very low sensitivity variation over the operating temperature range, compared to other sensing element designs. The Kistler shear element technology also ensures high immunity to base strain errors. These accelerometers have welded titanium construction for low mass and industry standard 4-pin connectors, as well as mini 4-pin connectors for lower mass and wider frequency operation. An integral silicone cable variant is available for application of underwater vibration testing at up to 16 bar (232 psi). All variations provide reliable measurements and long-term stability, especially at higher operating temperatures.
Why engineers pick it
Stable across temperature. The PiezoStar element gives very low sensitivity variation over the operating temperature range, with long-term stability of ±1%.
High-temperature option. H and TH variants operate to 330 °F (165 °C), compared with 250 °F (120 °C) for the standard version.
Wide bandwidth on high ranges. The 1,000 and 2,000 g ranges are flat from 1 to 12,000 Hz (±5%) and 0.5 to 20,000 Hz (±10%), with resonance up to 105 kHz.
Low mass. From 3.6 g (2,000 g range, M4.5 connector) to 4.4 g, keeping mass loading low on small structures.
Which 8766A do I need?
Range
Sensitivity at 100 Hz
Threshold (1 … 10 kHz), typ.
Resonance, mounted
Frequency response ±5%
Frequency response ±10%
±250 g (8766A250)
20 mV/g ±10%
0.0036 grms
75 kHz
0.8 … 10,000 Hz
0.5 … 12,000 Hz
±500 g (8766A500)
10 mV/g ±10%
0.0071 grms
85 kHz
0.8 … 10,000 Hz
0.5 … 15,000 Hz
±1,000 g (8766A1K0)
5 mV/g ±10%
0.013 grms
85 kHz
1 … 12,000 Hz
0.5 … 20,000 Hz
±2,000 g (8766A2K0)
2.5 mV/g ±10%
0.026 grms
105 kHz
1 … 12,000 Hz
0.5 … 20,000 Hz
Connector
A, M4.5 4-pin: all ranges
B, 1/4-28 4-pin: 250 and 500 g ranges only
C, IP68 integral cable: 250, 500, and 1,000 g ranges, customer-specified length up to 20 m
Variant
B, base model: −65 … 250 °F (−54 … 120 °C)
H, high temperature: −65 … 330 °F (−54 … 165 °C)
TH, high temperature with TEDS: 250 and 500 g ranges only
The sensor attaches with wax, adhesive, or the supplied mounting stud in its 5-40 UNC-2B mounting thread, tightened to 7.5 ±0.5 lbf·in (0.85 ±0.06 N·m). Included studs convert 5-40 to 10-32 (Type 8416) or to M6 (Type 8418). Optional ground-isolated and magnetic mounting bases are listed on the Specifications tab.
When is the 8766A the wrong choice?
Ranges below ±250 g. The 8766A starts at ±250 g.
The 1/4-28 connector on high ranges. The 1/4-28 connector is available only on the 250 and 500 g ranges, and the IP68 integral cable only up to the 1,000 g range.
Temperatures above 330 °F (165 °C). Even the high-temperature variant tops out at 165 °C.
8766A FAQ
±250, ±500, ±1,000, and ±2,000 g.
−65 … 250 °F (−54 … 120 °C) for the base and TEDS variants, and −65 … 330 °F (−54 … 165 °C) for the H and TH high-temperature variants.
Kistler's crystal shear element, which gives very low sensitivity variation over the operating temperature range.
The IP68 integral cable option (250, 500, and 1,000 g ranges) is tested at 16 bar for 48 hours. Connector versions are hermetic.
Yes, with templates T00 through T06, and in combination with high temperature (TH) on the 250 and 500 g ranges.
Mounting studs 8416 and 8418, mounting wax 8432 (except the integral cable option), an ISO 17025 calibration certificate, and an IP68 test certificate of conformity with the integral cable option.
Configure and order the 8766A
Configure the 8766A by range, connector, variant, and cable, and order directly on this page. For questions, contact us.
