Our Services

Calibration

Tech Presion Services calibration facilities meets stringent requirements of International Standard. Calibration, which is a process of comparison, is therefore associated with a level of uncertainty. Our reports completely indicate the uncertainty associated with measurements. “Tech Presion Services” is equipped with sophisticated Calibration equipment. The Calibration Accuracy of these Master Standards are traceable to National & International Standards. Facility includes Computerized Automatic Calibration & Report generation conforming to ISO Standards. High accuracy calibration equipments, trained personnel & strict environmental conditions shows the strength of the “Tech Presion Services Calibration Laboratory” to meet the customer requirement and to provide service at its best. Calibrating an instrument involves comparing the measurements of two instruments; one with a known magnitude or correctness (standard device), against which you measure the unit under test. Calibration has been defined by the International Bureau of Weights and Measures as an “Operation that, under specified conditions, in the first step, establishes a relation between the quantity values with measurement uncertainties provided by the measurement standards and corresponding indications with associated measurement uncertainties (of the calibrated instrument or secondary standard) and, in the second step, uses this information to establish a relation for obtaining a measurement result from an indication”.

Why should We Calibrate?

Calibration is required for:

Testing a new instrument
Testing an instrument after it has been repaired or modified
Periodic testing of instruments
Testing after the specific usage has elapsed
Prior to and/or after a critical measurement
When observations are not accurate or instrument indicators do not match the output of a surrogate instrument
After events such as:
- An instrument has had a shock, vibration, or exposure to adverse conditions, which can put it out of calibration or damage it.
- Sudden weather changes

Risk Involved in Not Calibrating an Instrument

Safety procedure: In case of instruments involving perishable products such as food or thermometers with area of sensitive nature, uncalibrated instruments may cause potential safety hazards.
Wastage: If the instrument is not perfectly calibrated, it might lead to potential wastage of resources and time consumed in the operations, resulting in an overall increase in expenses.
Faulty or Questionable Quality: If the instrument is improperly calibrated, the chances of faulty or questionable quality of finished goods arises. Calibration helps maintain the quality in production at different stages, which gets compromised if any discrepancy arises.
Fines or litigations: Customers who have incurred damage may return the product against a full refund, which is still alright; but if they go for litigation due to damages, you could be up for serious costs in terms of reputation and restitution payments.
Increased downtime: Poor quality of finished goods is the first indicator of disrepair in your equipment. Regular calibration programs identify warning signs early, allowing you to take action before any further damage is caused.

The calibration of instruments is the most basic maintenance requirement, which is an established procedure that every business using machinery or instruments must conduct periodically as specified in their machinery or instruments requirement.

Non-Destructive Testing (NDT)

Non-destructive testing (NDT) is a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. Because NDT does not permanently alter the article being inspected, it is a highly valuable technique that can save both money and time in product evaluation, troubleshooting, and research.
Nondestructive Testing (NDT) plays an important role in assuring that structural and mechanical components perform their function in a safe, reliable, and cost-effective manner. NDT technicians perform the necessary tests to locate the indicators and discontinuities that may cause failures or shut downs in such systems. These tests are performed in a manner that does not affect the future usefulness of the object or material – hence, the name “nondestructive.” NDT allows for careful and thorough materials evaluation without the need for deconstruction or damage. NDT is typically used at various points in a part’s life cycle. NDT can be used prior to the use of a component for the sake of quality control. NDT is also employed while components are in use to detect service related conditions caused by wear, fatigue, corrosion, stress, or other factors which affect reliability.

NDT Technologies Include:

Visual and Optical Testing (VT) Visual Examination can be an effective way to recognize surface imperfections that could adversely affect a part or component. Visual Examiners use knowledge of how a part is manufactured, the function of the human eye, lighting requirements, and precise measuring tools to evaluate materials. Computer controlled camera systems and optical aids such as borescopes may also be used to recognize and measure features of a component.

Ultrasonic Testing (UT)

Ultrasonic Examination uses high-frequency sound waves which are transmitted into a material to detect discontinuities or locate changes in material characteristics. Sound is introduced into the object being examined and reflections from internal imperfections, areas of acoustic impedance, or varying geometrical surfaces are returned to a receiver.

Magnetic Particle Testing (MT)

Magnetic Particle Examination is accomplished by inducing a magnetic field into a ferromagnetic material and applying iron particles to the surface of the item being examined. Surface and near-surface discontinuities affect the flow of the magnetic field within the part causing the applied particles to gather at locations of flux leakage, thus producing a visible indication of the irregularity on the surface of the material.

Penetrant Testing (PT)

Penetrant Examination is performed with a dye solution. Once applied to the surface, the dye will effectively penetrate any surface-breaking cavity. Excess solution is removed from the object. A developer is then applied to draw out any penetrant that remains unseen. With fluorescent dyes, ultraviolet light is used to make the “bleed-out” fluoresce brightly, allowing imperfections to be readily seen. With visible dyes, a color contrast between the penetrant and developer makes the “bleed-out” easy to see.

Validation

Every manufacturing process and line needs a validation risk assessment. These assessments will take into consideration all aspects of your manufacturing process and assess the potentialities of these crucial aspects failing or disrupting the rest of the manufacturing process. Performing a proper validation risk assessment for your business ensures you can later easily verify how well your process works. It also points out potential trouble areas to keep under heavy scrutiny. The validation engineering team at TPS Engineering has the experience and knowledge to provide you with a validation risk assessment that considers all crucial aspects of your manufacturing, regardless of your industry.

Verification

At this stage, a number of product samples are prepared and subjected to the most critical tests from the relevant standards and other requirements set out in the Design Brief. Producing and testing a number of samples at this stage helps give us more information about product performance, the manufacturing processes and steps likely to be required. Test data is reviewed to ensure that the required performance is achieved. Successful completion of the Engineering Validation Test (EVT) stage enables us to release the product to manufacture in agreement with the customer.

Certification

Most products are subject to certification standards, whether to meet laws and safety rules or simply to allow their marketing.

TPS offers mechanical certification services, mainly for:

Aerospace certification
Lifting equipment certification
Oil tanks certification
Structure certification
(tower, platforms, etc.)
Medical device certification.
In addition to civil
engineering, we offer
certification services and analysis for applications
requiring advanced finite element methods.