Instrumentation
Instrumentation for the data acquisition system is listed below. All instruments are fitted with connectors that will plug directly into the data acquisition system or through one or more cables for the desired length. The exceptions are the Heidenhain encoders that can only be connected directly to the MTS STS controller. The list presents instrumentation for both the nees@berkeley Laboratory and EERC Shaking Table Laboratory (ESTL) experimental facilities. Total number of units and number of units owned by each facility is specified.
Load Cells
| Model | Type |
Axial load kN (kip) |
Shear load kN (kip) |
Moment kN*m (kip*in) | Quantity | ||
|---|---|---|---|---|---|---|---|
| nees | ESTL | Total | |||||
| EERC-5comp | 5 component: axial, 2-shear, 2-moments | ±220 (±50) | ±88 (±20) | ±40 (±350) | - | 8 | 8 |
| EERC-3comp | 3 component: axial, 1-shear, 1-moment | ±70 (±16) | ±22 (±5) | ±3 (±30) | - | 10 | 10 |
| EERC-27kip | Unidirectional, tension/compression | ±120 (±27) | - | - | - | 2 | 2 |
| EERC-15kip | Unidirectional, tension/compression | ±66 (±15) | - | - | - | 4 | 4 |
| Honeywell TH | Unidirectional, compression | 440 (100) | - | - | 6 | - | 6 |
| Lebow 3156 | Unidirectional, tension/compression | ±670 (±150) | - | - | - | 1 | 1 |
| Lebow 3336 | Unidirectional, tension/compression | ±90 (±20) | - | - | 2 | - | 2 |
Position Transducers
| Model | Description | Range mm (in) |
Quantity | ||
|---|---|---|---|---|---|
| nees | ESTL | Total | |||
| Balluff BTL2-E10-2540 | Position transducer | 2500 (100) | - | 3 | 3 |
| Celesco PT5A-60 | Wire pot | 1500 (60) | - | 5 | 5 |
| Celesco PT60A | Wire pot | 1500 (60) | - | 3 | 3 |
| Celesco PT101-0040 | Wire pot | 1000 (40) | 10 | 11 | 21 |
| Celesco PT5AV-40 | Wire pot | 1000 (40) | 3 | 3 | 6 |
| Celesco PT101-30A | Wire pot | 750 (30) | - | 39 | 39 |
| Celesco PT101-15A | Wire pot | 375 (15) | - | 7 | 7 |
| HP 7DCDT-1000 | DCDT | ±25 (±1) | - | 24 | 24 |
| HP 7DCDT-500 | DCDT | ±12.5 (±0.5) | - | 20 | 20 |
| HP 7DCDT-100 | DCDT | ±2.5 (±0.1) | - | 12 | 12 |
| Macro Sensors DC-750-3000 | DCDT | ±75 (±3) | - | 2 | 2 |
| Macro Sensors DC-750-3000 | DCDT | ±50 (±2) | - | 1 | 1 |
| Macro Sensors DC-750-3000 | DCDT | ±25 (±1) | - | 4 | 4 |
| Novotechnik TLH2000 | Position transducer | 2000 (80) | 3 | - | 3 |
| Novotechnik TLH1000 | Position transducer | 1000 (40) | 6 | - | 6 |
| Novotechnik TLH600 | Position transducer | 600 (24) | - | 4 | 4 |
| Novotechnik TLH500 | Position transducer | 500 (20) | 8 | - | 8 |
| Novotechnik TLH275 | Position transducer | 275 (11) | 12 | - | 12 |
| Novotechnik TR100 | Position transducer | 100 (4) | 12 | 10 | 22 |
| Novotechnik TR50 | Position transducer | 50 (2) | 12 | 11 | 23 |
| Novotechnik TR25 | Position transducer | 25 (1) | 12 | 10 | 22 |
| Patriot (Rayelco) PV-100A | Wire pot | 2500 (100) | - | 2 | 2 |
| TransTek 0221-00000 | AC LVDT | ±190 (±7.5) | - | 8 | 8 |
| TransTek 0246-00000 | DCDT | ±75 (±3) | 14 | 7 | 21 |
| TransTek 0245-00000 | DCDT | ±50 (±2) | - | 4 | 4 |
| TransTek 0244-00000 | DCDT | ±25 (±1) | 10 | 19 | 29 |
| TransTek 0243-00000 | DCDT | ±12.5 (±0.5) | 5 | 5 | 10 |
Encoders
| Model | Description | Range mm (in) |
Quantity | ||
|---|---|---|---|---|---|
| nees | ESTL | Total | |||
| Heidenhain LS 623 | Digital encorder with ±10 micrometer grade accuracy | 1140 (45) | 2 | - | 2 |
| Heidenhain LS 623 | Digital encorder with ±10 micrometer grade accuracy | 3000 (118) | 2 | - | 2 |
Tilt Meters
| Model | Description | Range (degrees) |
Quantity | ||
|---|---|---|---|---|---|
| nees | ESTL | Total | |||
| Applied Geomechanics 801-S/L | Uniaxial tiltmeter | ±3 | 2 | - | 2 |
| Applied Geomechanics 904-TH | Biaxial clinometer | ±10 | 6 | 6 | |
Velocity Transducers
| Model | Description | Range mm/sec (in/sec) |
Quantity | ||
|---|---|---|---|---|---|
| nees | ESTL | Total | |||
| Celesco PT5AV-40 | Self-generating DC tachometer in wire pot | 7600 (300) | 3 | 3 | 6 |
| Patriot (Rayelco) PV-100A | Self-generating DC tachometer in wire pot | 1125 (45) | - | 2 | 2 |
| Transtek 0127-0001 | Linear velocity transducer (generates DC output without external excitation) | 600 (24) | 4 | - | 4 |
| Transtek 0124-0001 | Linear velocity transducers (generates DC output without external excitation) | 300 (12) | - | 1 | 1 |
Acceleration Transducers
| Model | Range (Gs) | Quantity | ||
|---|---|---|---|---|
| nees | ESTL | Total | ||
| ICSensors | ±5 or ±10 | - | 33 | 33 |
| Setra 141a | ±2 | 2 | - | 2 |
| Setra 141a | ±4 | 4 | - | 4 |
| Setra 141a | ±8 | 2 | - | 2 |
| Setra 141a | ±5 or ±10 | - | 16 | 16 |
More information about Serta accelerometers is available from the Setra Operating Instructions.
Thermocouple Converters
| Model | Description | Min range C (F) |
Max range C (F) |
Quantity | ||
|---|---|---|---|---|---|---|
| nees | ESTL | Total | ||||
| Fluke 80TK | Converts output of K-type thermocouple to 1 mV/degree (F or C) | -50 (-58) | 1000 (1832) | - | 12 | 12 |
Strain Gauge Connections
Strain gauges are connected to the data acquisition system through an adaptor using a PT06A-12-10P connector. Gauges may be connected in configurations of 1/4, 1/2, or full bridge as shown in the figure below (the gauge adapter is shown as a blue box). The RRW laboratory has gauge 58 adapters.
The gauge adapters of the ESL have slightly different wiring specified in Gauge Connector for the EERC Experimental Facility (design of 10/22/2004). The ESL laboratory has gauge 71 adapters.
Cables
A complete list of the data acquisition cables is provided in the table. The cable's pin connectors are specific to the data acquisition system and they match the connectors of all measuring devices.
| Description | Length m (ft) |
Quantity | ||
|---|---|---|---|---|
| nees | ESTL | Total | ||
| NEES data acquisition cable | 9.0 (30) | 192 | - | 192 |
| EERC data acquisition cable | 10.8 (36) | - | 170 | 170 |
| EERC data acquisition cable | 21.6 (72) | - | 70 | 70 |
Relocation to Other Labs
All instrumentation is wired for use at the Berkeley system. No modification of fittings or connectors will be allowed. Non-NEES projects will pay the established recharge rate. Insurance for full value, to be determined, will be required. Only instruments not scheduled for use at the home facility may be considered for use elsewhere. Any use of instrumentation on other data acquisition systems than the nees@berkeley system must be done through the use of the correct connector adaptor. Failure to use the correct pin connections can result in the destruction of some instruments.
More information about the wiring of pin connections is available from the Berkeley Instrument Connectors document.
