Cartesy Diagnosis Technology CO.,Ltd
Company Vision: To make vehicles safer and change lives Company Mission: Based in China, oriented towards the world, serving globally, and creating a specialized and innovative brand of vehicle
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Product Overview
A dial indicator is a high-precision mechanical displacement measurement tool commonly used for the calibration of side slip testers. It measures the slight lateral displacement of the slip plate under static load conditions, allowing users to assess whether the tester has offset errors and to verify the accuracy of sensor outputs. It is typically used in combination with standard calibration plates, calibration platforms, or sliding devices.
Why Calibration Is Necessary
Ensure Testing Accuracy
Side slip testers are used to evaluate a vehicle's front wheel alignment status (e.g., toe angle or camber). Inaccurate test results may lead to misjudgments about a vehicle’s steering performance, affecting both safety and compliance.
Comply with Regulatory and Quality Standards
According to national standards for vehicle inspections (e.g., GB21861 in China), side slip testers must be periodically calibrated to ensure the measured slip values are within the acceptable error range (typically ±1 m/km or ±0.5 m/km).
Verify Sensor Linearity and Stability
By comparing the physical displacement shown by the dial indicator with the slip value displayed by the system, users can determine if the sensor output suffers from zero-point drift or scaling errors.
How to Use
1.Preparation
Clean the surface of the side slip tester to ensure that the sliding plate or rail moves freely.
Install the standard slip plate or calibration block on the roller mechanism of the tester.
Mount the dial indicator onto the edge of the platform or a calibration stand, ensuring that the indicator tip contacts the side of the sliding plate with appropriate preload (typically less than 0.1 mm).
2.Calibration Steps
Zeroing the Dial: Adjust the dial indicator to zero by aligning the tip with the calibration plate under light preload.
Slide the Plate: Slowly push the slip plate to simulate the motion of a vehicle wheel passing over the tester (typically ±10 mm of travel).
Record Displacement: Simultaneously record the mechanical displacement value (in mm) shown by the dial and the slip value (in m/km) displayed on the side slip tester system.
Convert and Compare: Convert the dial reading into a slip value (m/km) and compare it with the system reading to calculate any deviation.
Adjust if Necessary: If the error exceeds the allowed tolerance, recalibrate the sensor output, software scaling factor, or control module parameters.
Notes
The dial indicator should be verified with a certified gauge block or by an accredited metrology agency before use (typical precision: 0.01 mm).
The calibration plate must move smoothly without jamming or excessive friction to ensure accurate results.
Regular calibration is recommended every 6–12 months, and calibration records should be properly documented.
A laser displacement sensor or digital comparator can also be used for cross-verification if needed.
Recommended Calibration Set
1 × Lever-type Dial Indicator (0–1 mm range, 0.01 mm resolution)
1 × Standard Calibration Slip Plate
1 × Mounting Stand or Calibration Arm
1 × Calibration Log Sheet (Excel Template)
Q1. What is your terms of packing?
A: Generally, we pack our goods in wooden case per set
Q2. What is your terms of payment?
A: T/T 50% as deposit, and 50% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: EXW, FOB
Q4. How about your delivery time?
A: Generally, it will take 10 or 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.