Stress Gauge
SF series Stress gauge
These gauges are intended to measure the stress in an optional direction of the specimen in plane stress field. The gauges are sensitive not only in these axial direction but also in the transverse direction, and the sensitivity ratio of the transverse direction to the axial directions is equal to the Poisson’s ratio of the specimen material. In addition, the gauges are not sensitive to the shearing strain. Accordingly, the output of the gauges is proportional to the stress in the axial direction. The gauges are available in three types depending on the Poisson’s ratio of the specimen material.
| Applicable specimen | Metal |
|---|---|
| Operational temperature(℃) | -20 to +200℃ |
| Temperature compensation range(℃) | +10 to +100℃ |
| Applicable adhesive | NP-50B, CN, C-1 |
| Backing | Polyimide |
| Element | Cu-Ni |
| Strain limit | - |
| Fatigue life at room temperature | 1 x 106 (±1500 x 10-6 strain) |
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AXIAL STRESS MEASUREMENT
Gauge pattern Type Gauge
length
(mm)Gauge
width
(mm)Backing
length
(mm)Backing
width
(mm)Resistance
(Ω)
Poisson's
ratio
of specimen
SFA-285-11 4 3 9 6 120 0.285 SFA-305-17 4 3 9 6 120 0.305 SFA-330-23 4 3 9 6 120 0.330 Each package contains 10 gauges.
Lead wire attachment service is available on request.
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Stress Gauge
Crack Detection Gauge
FAC series Crack detection gauge
FAC series crack detection gauges are designed to measure the length and propagation speed of cracks occurring as a result of metal fatigue in machinery, ships, aircraft, and automobiles. A gauge is adhered beforehand where cracks have occurred or are predicted to occur. As a crack progresses, the grid lines separate one after another, and output value changes. Use together with the special adaptor CGA-120B.
| Applicable specimen | Metal, Concrete |
|---|---|
| Operational temperature(℃) | -30 to +80℃ |
| Temperature compensation range(℃) | - |
| Applicable adhesive | CN, RP-2 |
| Backing | Special plastics |
| Element | Cu-Ni |
| Strain limit | - |
| Fatigue life at room temperature | - |
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CRACK LENGTH AND PROPAGATION MEASUREMENT
Type Measuring
range
(mm)Backing
length
(mm)Backing
width
(mm)Gauge
resistance
(Ω)Grid
interval
(mm)Number
of gridFAC-5 4.5 28 5 1 0.1 46 FAC-20 20 43 25 1 0.5 41 Each package contains 10 gauges.
Type Number of channels Operational temperature Dimension Weight CGA-120B 1 -30 to +80℃
(except condensation)20(W) x 15(H) x 15(D)mm
(except projections)Approx.5ｇ
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Crack Detection Gauge
Thunder proof for TML-NET
Thunder proof for TML-NET NNZ-2A
The NNZ-2A is used for protecting TML-NET network measurement system from induced lightning. When the cable of instrument or network-module receives induced lightning, failure may be caused in the network driver and/or network module by the lightning surge. The NNZ-2A is connected to the connection cable of the network, and works to flow the surge current to the earth when induced lightning occurs. In addition, during standby of measurement, it automatically shuts off the network line to protect the network driver and network modules from the lightning surge.
- Features
- Shuts off network line automatically during measurement standby status to avoid induced current
- Power is supplied from network line
- Monitors voltage of network line and current of network modules, and shuts off immediately if abnormal condition occurs
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Specifications
Type NNZ-2A Surge tolerance 100A (8/20µs impulse) Available number for one system NNZ-2A: up to 10
Low-comsumption network module: up to 100Rated power supply voltage DC18 to 24V Standard used cable Dedicated 2-conductor shielded cable
Total extended distance: up to 2 km (at DC24V power supply voltage)
up to 1 km (at DC18V power supply voltage)Display function Drop of voltage in the network line
Over current of network module (Shuts off the network modules at over current)Environment -20 to +60°C 85%RH or less (no condensation) Dimensions 50(W) x 28(H) x 100(D)mm (except projecting parts) Weight Approx. 120g
System Block Diagram
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One-side Strain Gauge
DD series One-side strain gauge
These gauges are intended for measuring the bending and tensile strains separately by simply bonding the gauges on one side of a plate or beam. It works on the assumption that the strain distribution in the section of the specimen is linear along the height of the section when the section is subjected to both tensile and bending stress. The gauges are effectively used for the measurement of a box construction in structures such as bridges or pressure vessels, where the reverse side of the measurement object is not accessible for strain gauge installation. Optional (-F) lead-free solder specifications are also available.
| Applicable specimen | Metal |
|---|---|
| Operational temperature(℃) | -10 to +70℃ |
| Temperature compensation range(℃) | - |
| Applicable adhesive | CN, P-2 |
| Backing | Acrylic |
| Element | Cu-Ni |
| Strain limit | 0.15% (1500 x 10-6 strain) |
| Fatigue life at room temperature | 1 x 105 (±1000 x 10-6 strain) |
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ONE-SIDE STRAIN GAUGE
Type Gauge
length
(mm)Gauge
width
(mm)Backing
length a
(mm)Backing
width b
(mm)Backing
thickness
c (mm)Resistance
(Ω)Thickness of
applicable
specimen (mm)DD-1-15 3 2.9 15 7 1 350 Approx. 5 or less DD-2-30 3 2.9 30 7 2 350 Approx. 5 to 10 * Orders accepted for 5 units at a time
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One-side Strain Gauge
Multi-Recorder Control Unit (TMR-300 Series)
Control unit TMR-311 
This works as the central unit of multi-recorder system. It controls, supplies power to and collects data from the connected measurement units. Up to ten measurement units can be controlled for measurement of 80 points at maximum.
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Specifications
Type TMR-311 Number of measuring points 80 at maximum
(with up to 10 networked units, by selection of input unit)Sampling 0.01 to 0.09ms (set by every 0.01ms)
0.1 to 0.9ms (set by every 0.1ms)
1 to 1000ms (set by every 1ms)
512, 1024, 2048, 4096, 8192 HzTrigger function Data trigger Data of optional channel
(optional input level, or relative level from start)Command trigger Command from interface Timer trigger Real time, Interval Synchronization of multiple units Synchronization of sampling and trigger for up to 4 units of TMR-311 (320 measurement points)
Maximum extension between two units: 100mRecording media SD card 4GB to 32GB (SDHC high speed mode class 10) Interface LAN, USB, Wireless LAN (AP mode, IP fixed) *
*: Built-in wireless LAN is not available for overseas model.Indication Status LED (status, IP address, etc.) External dimensions 200(W) x 50(H) x 100(D) mm (excluding projected parts) Weight Approx. 900g (including rubber protectors) Power supply DC 10 to 30V, 0.6A at maximum (when 12V supplied, single unit)
AC 100 to 240V, 50/60 Hz, 100VA at maximum (when using optional AC adapter CR-1897)
Part Names
Front
Back
Frequency processing library TMR-311-01 (optional)
This is an optional frequency processing library for the TMR-300 series of multi-recorders.
It realizes a histogram recording system that digitally processes measurement data according to a preset program and records them as frequency counts.
Six frequency analysis methods are available: maximum and minimum value method (PEAK/VALLEY), maximum and minimum value method (MAX/MIN), amplitude method (AMP), time method (TIME), level crossing method (LEVEL), and rain flow method (RAIN).
Features
- Up to 80 analyses can be performed in low-speed mode with a sampling interval of 1 ms or more
- Multiple analysis methods can be set up for the same channel
Note
Frequency measurement requires the optional frequency processing library. Purchase of the library and opening of its functions are required to use the library.
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